Brown recluse spiders active from March through October

by Mary Lou Peter

‘Tis the season – for creepy, crawly things that seemingly come from nowhere. And one to watch for is the brown recluse spider. “A number of things are not well known or have been misunderstood about the ,” said Holly Davis, research associate and Ph.D. candidate in Kansas State University’s Department of Entomology. She, along with associate professor of entomology, Jeff Whitworth, recently completed research in an effort to better understand and manage the brown recluse. The team shared 10 facts about the much-publicized spider.

  1. Brown recluse spiders are mostly only active from March through October, so trying to control them from October through March is generally not necessary or useful.
  2. They are found outdoors in Kansas and other Midwestern states, as well as within structures. They tend to thrive in the same environments that humans do. They enter structures either by crawling in from the outside or are brought in on furniture and boxes from other infested structures.
  3. They readily feed on prey that is dead, so are attracted to recently killed insects. However, they can and will also attack live prey.
  4. Brown recluses build small, irregular webs in out-of-the-way places but do not use these to capture prey. They tend to hide in the dark and move around at night searching for prey.
  5. A brown recluse is tiny when it first emerges from the egg case and takes several molts to reach adulthood, 6-12 months. Remember, they are only active from March to October so this may take one to two years. Then they may live 2-3 years as adults. Females can produce 2-5 egg cases during this time (two or three is most common) and each may contain 20-50 spiderlings.
  6. Brown recluse spiders are venomous but bites do not always result in large, necrotic lesions where surrounding tissue dies. Often, the bite goes unnoticed and only results in a pimple-like swelling. However, some people develop a necrotic wound (with blood and pus) which is slow to heal, with the potential for a secondary infection. If you know you’ve been bitten, catch the spider if safely possible, and show it to medical personnel for clear identification.
  7. Sticky traps for spiders and other insects, available at most hardware and garden stores, work well to trap brown recluse spiders. They may not significantly reduce the numbers, but definitely help, and are a great way to detect and monitor the spider populations.
  8. Insecticides labeled to control brown recluse spiders kill the spiders, but must be sprayed directly on them, or the spider needs to come into direct contact with the treated area while it is still damp. Otherwise, little control is achieved.
  9. Brown recluse spiders are better controlled with insecticides on non-carpeted surfaces.
  10. Preventative measures like sealing cracks in foundations and walls, clearing clutter in and around the home, moving woodpiles away from the house, placing sticky traps in low traffic areas and spraying pesticides can help eliminate brown recluse populations within the home.

What is a Brown recluse Spider and What Does it Look Like?

common name: brown recluse spider scientific name: Loxosceles reclusa Gertsch and Mulaik (Arachnida: Araneae: Sicariidae)

The brown recluse spider, Loxosceles reclusa Gertsch & Mulaik, is frequently reported in Florida as a cause of necrotic lesions in humans. For example, in the year 2000 alone, Loft (2001) reported that the Florida Poison Control Network had recorded nearly 300 alleged cases of brown recluse bites in the state; a subset of 95 of these bites was reported in the 21 counties (essentially Central Florida) under the jurisdiction of the regional poison control center in Tampa.

Female brown recluse spider, Loxosceles reclusa Gertsch & Mulaik. Figure 1. Female brown recluse spider, Loxosceles reclusa Gertsch & Mulaik. Photograph by Jeffrey Lotz, DPI. I called the Florida Poison Control Network to confirm these numbers, and was cited 182 total cases and 96 in the Tampa region. The actual numbers are less important than the fact that a significant number of unconfirmed brown recluse spider bites are reported in the state every year. Yet not one specimen of brown recluse spider has ever been collected in Tampa, and the only records of Loxosceles species in the entire region are from Orlando and vicinity. A general review of the brown recluse, along with a critical examination of the known distribution of brown recluse and related spiders in Florida, seems in order at this time. The description is taken from Gertsch (1958). Adults of both sexes are similar in appearance and size, ranging from about 7 to 12 mm in body length. Adult females average slightly larger, about 9 mm compared to about 8 mm for adult males. The carapace is pale yellow to reddish brown, with a dusky brown patch just in front of the median groove (which is encompassed by a narrow, dark line); this patch is united to the front of the carapace by dusky brown stripes. In total, these markings appear in the form of a violin. In addition, three dusky patches may occur along the margin on each side. The sternum is yellowish, with other ventral body parts of the cephalothorax darker reddish brown.

Detail of the carapace of the brown recluse spider, Loxosceles reclusa Gertsch and Mulaik, showing the dark fiddle-shaped marking often used to identify this spider. Figure 2. Detail of the carapace of the brown recluse spider, Loxosceles reclusa Gertsch and Mulaik, showing the dark fiddle-shaped marking often used to identify this spider. Photograph by James L. Castner, University of Florida.

The legs are slender and dusky orange to dark reddish brown. They are numbered front to back with Roman numerals (I, II, III, IV). In females, the leg length formula, longest to shortest, is II, IV, I, III, typically with leg II being over 18 mm in length, and leg III about 15 mm, the other two pair intermediate in length. The male leg formula is II, I, IV, III, with leg II over 24 mm and leg III about 17 mm. The abdomen of both sexes is tan to brown, but it may appear darker if the spider has recently fed. Juveniles are paler in all respects, as are occasional adults.

Adult brown recluse spider, Loxosceles reclusa Gertsch and Mulaik, showing leg length relative to a US quarter. Figure 3. Adult brown recluse spider, Loxosceles reclusa Gertsch and Mulaik, showing leg length relative to a US quarter. Photograph by Jim Kalisch, University of Nebraska-Lincoln.

Males of the common southern house spider, Kukulcania (= Filistata) hibernalis (Hentz), are frequently confused with the brown recluse (Edwards 1983). The male palp length of L. reclusa is under 4 mm, considerably less than the superficially similar crevice spider. Another difference between the two species is that L. reclusa has six eyes composed of three isolated pairs (dyads), whereas K. hibernalis has eight eyes all clumped together in the middle front of the carapace.

Male southern house spider, Kukulcania hibernalis (Hentz). Figure 4. Male southern house spider, Kukulcania hibernalis (Hentz). Photograph by Jeffrey Lotz, Division of Plant Industry. The three pairs of eyes that help identify the brown recluse spider, Loxosceles reclusa Gertsch and Mulaik. Figure 5. The three pairs of eyes that help identify the brown recluse spider, Loxosceles reclusa Gertsch and Mulaik. Photograph by Jim Kalisch, University of Nebraska-Lincoln.

The only other Florida spiders with an eye arrangement similar to Loxosceles are the spitting spiders of the genus Scytodes, but these spiders have a domed carapace, lack a violin-shaped carapace marking, and are not known to cause serious wounds in humans. Occasionally, the huntsman spider, Heteropoda venatoria (Linnaeus), is misidentified as a brown recluse (Edwards 1979). However, the color pattern on the carapace of this species is reversed, with a light median mark on a dark background, and adults of this spider are much larger than a brown recluse.

Female spitting spider, Scytodes sp. Figure 6. Female spitting spider, Scytodes sp. Photograph by G.B. Edwards, DPI. Adult male huntsman spider, Heteropoda venatoria (Linnaeus). Figure 7. Adult male huntsman spider, Heteropoda venatoria (Linnaeus). Photograph by Marie Knight.

Biology (Back to Top)

Hite et al. (1966) made the earliest thorough report of the biology of L. reclusa. In their study, they recorded the habitat of 626 brown recluse in Arkansas found from May 1962 to December 1964. Most (430) were found in buildings and outbuildings, especially in boxes and among papers, in every room from basement to attic. They were found in almost any place which had remained undisturbed for lengthy periods of time, such as behind pictures, beneath or behind furniture, in boxes of toys, in clothing, among stored papers, in the corrugations of cardboard boxes, and in discarded articles, such as tires, inner tubes, and assorted other junk. Most of the specimens found in feral conditions were under rocks, especially in bluff outcrops, with a few under bark or in logs. They definitely seemed to prefer dry conditions. Spiderlings appear to stay with their mother for three to four instars before dispersing. They feed on prey provided by the mother during this time. Once dispersed, they may establish a home territory, where they stay through several more instars, as evidenced by the presence of several successive molts. Spiders go through a total of eight instars. Irregular webbing is seen in the nest area. Prey consists of a variety of other arthropods, including rather dangerous prey like other spiders and ants. The attack consists of a sudden lunge and bite, usually on an intended prey’s appendage, after which the brown recluse immediately backs away (personal observation). The venom acts rapidly to paralyze the prey, preventing any retaliation for the initial attack of the recluse spider. After the prey is overcome by the venom, the brown recluse moves in to feed. Relatively harmless prey, particularly mobile prey like houseflies, will be held with the initial bite and not released. Most mating and reproduction occurs during June and July. Females were frequently found with more than one eggsac. In the laboratory, females made up to five eggsacs. Total eggs per female ranged from 31 to 300, total hatched young maximized at 158 for a single female; the largest number of young from one eggsac was 91; and percent emergence of young was 0 to 100. Some eggs were fed on by spiderlings from previous eggsacs still in the web, or even by the female (perhaps these were infertile). The egg stage averaged about 13 days, instars I-VIII 17, 110, 63, 41, 38, 34, 40, and 53 days respectively. Maximum age for a brown recluse from emergence to death was 894 days for a female, 796 for a male. A laboratory-kept specimen lived over six months without food or water. Captive specimens also proved moderately resistant to pesticides. These two characteristics illustrate why brown recluse populations may exist in buildings for long periods of time, despite repeated efforts to eradicate them.

Female brown recluse spider, Loxosceles reclusa Gertsch & Mulaik, with eggsac. Figure 8. Female brown recluse spider, Loxosceles reclusa Gertsch & Mulaik, with eggsac. Photograph by Jeffrey Lotz, DPI.

Bites and Bite Symptoms (Back to Top)

Brown recluse spiders usually bite only when they become trapped next to the victim’s skin. Bites occur either when sleeping humans roll onto the spider or put on clothes into which the spider has crawled (Vetter and Visscher 1998). Typically bites occur under clothing, mostly on the thigh, upper arm, or lateral torso, less often on the neck (Anderson 1998) [Dr. Philip C. Anderson is a physician and medical researcher who has worked on brown recluse bites and venom for 40 years]. Description of the symptoms is from Wingo (1960), Gorham (1968, 1970), Anderson (1982, 1998), and Vetter and Visscher (1998). Reactions to a bite vary from no noteworthy symptoms to severe necrosis or systemic effects. Discomfort may be felt immediately after the bite, or several hours may pass before any local reaction to the bite occurs. In one study, only 57% of the patients realized they had been bitten at the time of the bite. It must be realized that there are at least two significant variables affecting the outcome of a bite. The first is the amount of venom injected by the spider. Like some venomous snakes, spiders are known to sometimes give “dry” bites, with little or no venom injected. The second variable is the sensitivity of the victim. Some people are simply more prone to have a severe reaction in instances where another person might only have a slight reaction. Typical symptoms are as follows: Symptoms start two to six hours after the bite. Blisters frequently appear at the bite site, accompanied by severe pain and pronounced swelling. A common expression is the formation of a reddish blister, surrounded by a bluish area, with a narrow whitish separation between the red and blue, giving a “bull’s-eye” pattern. By 12 to 24 hours, it is usually apparent if a Loxosceles wound is going to become necrotic because it turns purple in color; if necrotic symptoms do not express by 48 to 96 hours, then they will not develop. If the skin turns purple, it will then turn black as cells die. Eventually the necrotic core falls away, leaving a deep pit that gradually fills with scar tissue. Experimental antivenin (Rees et al. 1981; not commercially available) was very successful when administered within 24 hours, but many times a victim does not seek treatment until after necrosis is well underway (more than 24 hours), after which the antivenin is less effective. Systemic effects usually take two to three days to show symptoms. Bites that become systemic usually do not also become necrotic; it is thought that in necrotic wounds the venom is localized in the tissue whereas in systemic reactions the venom is distributed quickly into the body without necrotic local effects. The wound is usually free of bacterial infection for the first two to three days but may be contaminated by patients due to pruritis (itching) leading to scratching. Recluse venom can exhibit extended necrosis in adipose (fatty) tissue of thighs, buttocks and abdomen of obese patients; there is also a gravitational flow of the venom effects, at times leading to satellite pockets of necrosis. Healing can take weeks to months and may leave an unsightly scar, although scarring is minimal in most cases. Skin grafts may be required to complete healing in the worst cases, but should be considered a last resort.

Medical Analysis (Back to Top)

The following technical analysis is condensed from the medical literature. Persons who suspect they have been victimized by a brown recluse spider bite are strongly encouraged to consult with a physician. In medical terms (Vetter 1998), bites from Loxosceles can be unremarkable (requiring no care), localized (requiring some care but usually healing without intervention), dermonecrotic (a slow- healing, necrotic ulcerated lesion needing supportive care), or systemic (vascular and renal damage, sometimes life-threatening). Within 10 minutes of venom injection, there is a constriction of capillaries around the site of the bite. A major venom component is sphingomyelinase D which causes hemolysis (destruction of red blood cells). Recluse venom has a strong disruptive effect on endothelial tissue. Polymorphonucleocytes (PMN) are activated (by the patient.s immune system) and infiltrate the bite site; in test animals where PMN activity was suppressed, degree of necrosis was lessened. General symptoms are edema (swelling), erythema (redness caused by blood being brought to the surface to counteract the damage), pruritis (itching), pain at the site, and mild fever. A pruritic or painful eruption can occur within a few hours of the bite and persist for a week, ending with scaling and peeling of the hands, and a truncal papular rash, that recalls pictures of scarlet fever rashes; the pruritis may be worse for the patient than the painful focal necrosis. The skin may feel hot and tender to the patient. It may be advisable to treat the rash and pruritis symptoms with Prednisone (Anderson 1998). Treatment with corticosteroids does not appear to affect either the skin necrosis or the hemolysis (Anderson 1998). Dermatologic expression varies. In mild self-healing wounds, the bite site may not progress past an edematous erythema; these wounds do not become necrotic and non-intrusive care is sufficient. In more serious wounds, a sinking blue-gray macule on the skin contains a “bull’s- eye” pattern formation where a central erythematous bleb (blister) is separated from a peripheral cyanotic region by a white zone of induration (red-white-blue). If the bite becomes violaceous within the first few hours, this usually indicates that severe necrosis may occur and more supportive measures are necessary. The initial bleb gives way to ischemia (localized temporary blood deficiency). A central eschar (hardened scab similar to that made after burns) forms, hardens, and within seven to 14 days the eschar falls out leaving behind an ulcerated depression. The necrosis may continue to spread from the bite site possibly due to an autoimmune response (see above). Normally, the wound limits begin to recede after one week as healing begins. Unnecessary removal of tissue often leads to greater scarring than would result from normal healing. Extirpation of damaged skin is only recommended in severe cases and only after the limits of the wound are strongly demarcated at six to eight weeks. Most wounds self-heal with excellent results. Systemic conditions that might manifest in severe cases are hematoglobinuria (hemoglobin in the urine), hematoglobinemia (reduction of useful hemoglobin, resulting in anemia-like condition), thrombocytopenia (reduction of clotting platelets in the blood), and/or disseminated intravascular coagulation (DIC) (precipitation of platelets causing mini-clots all over the body). The presence of sustained coagulopathy with hemolysis indicates severe systemic loxoscelism. Fortunately, less than 1% of cases exhibit these symptoms. Although rare, if death occurs, it is most often from hemolysis, renal failure and DIC; children are most adversely affected due to their small body mass. Anderson (1998) noted, however, that none of the fatalities were proven to have been caused by a brown recluse spider.

Alternatives to Consider in Suspected Cases of Brown Recluse Bite

Spider bites cause clean infarctions in the skin. If an inflammatory core lesion exists, necrotizing infection should be anticipated, not spider bite. A number of other arthropods and an assortment of diseases, some caused by microorganisms and some with other causes, are known to produce necrotic or apparent pre-necrotic wounds. Vetter (1998) gives a list of causative agents of necrotic wounds (related discussion can be found at the associated website). This list includes most of the following conditions: Tick-induced: tick bites and tick-borne diseases, such as erythema chronicum migrans (Lyme disease) and Rocky Mountain Spotted Fever; Viral: chronic herpes simplex, infected herpes simplex, herpes zoster (shingles); Bacterial: Gonococcal (G.C.) arthritis dermatitis, Mycobacterium ulcerans, Staphylococcus infection, Streptococcus infection; Fungal: keratin cell mediated response to a fungus, sporotrichosis; Blood Disorders: focal vasiculitis, purpura fulminans, thromboembolic phenomena; Underlying Disease States: diabetic ulcer, chronic liver disease (spontaneous necrotizing fasciitis), pyoderma gangrenosum, toxic epidermal necrolysis (Lyells syndrome); Cancer: leukemia, lymphomatoid papulosis (LyP), lymphoma; Reaction to Drugs/toxins: alcoholism, erythema nodosum, warfarin and heparin poisoning; Topical: chemical burn (e.g., oven cleaner), poison ivy/oak infection; Miscellaneous/ Multiple Causative: bed sores, erythema multiforme, Stevens-Johnson syndrome, self-inflicted wounds; Unknown Causative Agents: periarteritis nodosa. Other possibilities include subcutaneous blisters and hives caused by stings of hymenopterous insects (ants, bees, yellowjackets, wasps), welts from urticating caterpillars, bites by predatory or parasitic bugs (assassin bugs, bed bugs), and other parasitic insect bites (black flies, mosquitoes, horse and deer flies, fleas). It is even possible that some as yet untested native spider is the cause of serious necrotic wounds. For example, circumstancial evidence in one case implicated Ctenus captiosus Gertsch (Edwards 1989), a wandering spider, as a cause of a necrotic bite, although a recent assay of the venom of this species did not find sphingomyelinase D (Dr. G. J. Bodner, personal communication, 2001). The expression of Lyme disease can give the classic ‘bull’s-eye’ patterning characteristic of brown recluse bite. Although Lyme disease is rare in Florida, it does exist and would be a more probable diagnosis than brown recluse bite. Misdiagnosis in this case could be serious since Lyme disease can be treated and cured with common antibiotics. If diagnosed as ‘brown recluse bite’ instead, it will obviously be treated as such; the Lyme disease then may progress to serious symptoms of heart and central nervous system disorders, and can result in death. In treating alleged spider bite victims, a question that medical personnel should be asking is whether the patient has recently traveled outside the area where they live. They should also attempt to be aware of potentially embarrassing etiological agents such as filthy lifestyle habits (squalid conditions that might encourage vermin such as bed bugs) or unhygienic use of drug paraphernalia (Vetter 1998).

Dr. D. Sollee, Florida Poison Control Network, provided statistics on brown recluse bites in Florida. R. Vetter, University of California, Riverside, reviewed the manuscript and contributed valuable discussions about brown recluse distribution and bites.

Posted in Brown Recluse Spider, Florida Spiders | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Feces in termites’ nests block biological pest control

 

 

Built-in poop nourishes bacteria that protect notorious Formosan species

By Susan Milius

Web edition: September 19, 2013

Enlarge

GROUP HEALTH PLAN
One Formosan termite may be little  and vulnerable but together the insects can draw on many protective powers, including fecal microbes built into their colony walls.
Credit: Scott Bauer

Mixing their own poop into nest walls gives Formosan termites a bacterial boost in fighting off human attempts to destroy them with insect plagues.

A bacterial strain found in the fecally-enhanced nest walls of pest termites Coptotermes formosanus helps protect them from a potentially deadly fungus, says entomologist Nan-Yao Su of the University of Florida in Fort Lauderdale. Such live-in boosters could help explain why efforts to control the termites with fungal diseases have been a failure, Su and his colleagues report September 18 in the Proceedings of the Royal Society B.

“You can put the fungus on an insect in a lab dish and say, ‘Hah! We killed the termite,’” Su says. But for termites in their natural colonies, the soil-dwelling fungus Metarhizium anisopliae has failed to devastate.

Meanwhile Formosan termites are destroying homes, railroad ties and even living trees. Colonies of these termites have proven among the pests most destructive to wood in the southeastern United States and Hawaii. A subtropical species from Asia, it turned up in Texas in 1951. A single colony can grow to more than a million termites scurrying through multiple underground nests and a tunnel network ranging across 150 meters.

After millions of years of crowding into warm, humid nests underground, the termites have evolved both biology and behavior that can fight fungi, says coauthor Thomas Chouvenc, also at the University of Florida. Termites attend to personal hygiene and invite grooming by stretching out a leg or exposing a body area. Nest mates oblige by nipping off detritus, which passes into the formidable termite gut, where pathogens typically die. The new study, Chouvenc explains, explores how termites export their gut’s protective power to the walls of their nests. (More Info)

 

Posted in Florida Subterranean Termites, Florida Termite damage | Leave a comment

Close encounter with huge Fla. wasp nest

VIDEO: Close encounter with huge Fla. wasp nest

WFLA-TV News Channel 8  (See Video)

By Jeff Patterson – bio | email

By WFLA.com web staff

Still frame from video of giant wasp nestStill frame from video of giant wasp nest

TAMPA, FL -Jonathan Simkins is an expert in flying insects. He has a degree in entomology from the University of Florida, and has been working in the industry for more than twenty years.

Simkins is the owner of Insect I.Q.  He travels all over Florida to deal with honey bees, Africanized bees, yellow jackets and other stinging insects.

Recently, he faced the challenge of his life. Simkins was called to a large, privately-owned tract of land in Central Florida to deal with a huge yellow jacket wasp nest.

“I have never seen a nest this large in my entire life,” said Simkins.  “This is the prehistoric nest from the dinosaur ages.”

He says the nest was more than six and half feet tall, and eight feet wide.  It may have contained more than a million insects.

“To put it into perspective, a nest we deal with on a day to day basis might have a thousand to five thousand,” Simkins said.

Simkins shot his own video of the nest before he eradicated it.

As he approached the nest, the worker wasps attacked him and his equipment.

In the video you can hear hundreds of wasps hit the camera.  The buzzing is non-stop, and Simkins’ voice is clearly tense.

“I have to be honest with you, I was terrified at one point, and there were several times that I had to pull out and get a breather. My heart rate was racing, I had hundreds of them on my veil,” said Simkins.

He used a spray and his own technique to kill the entire nest.

Simkins says if someone had walked up to the nest unawares, and riled the wasps, they could have been killed..

“We definitely did save lives. This land is hunted.  It’s leased out for hunters, if somebody comes across this, you’re not going to get away.  You can see in the video, I run a hundred yards away and I sill have thousands of yellow jackets chasing me, all over me, trying to kill me,” said Simkins.

The video ends the next day as Simkins walks up to the nest without his protective helmet on. Simkins stands next to the remains of the huge nest, and declares it dead.

Posted in Beucher & Son Termite and Pest Control, Florida Bee Control, Stinging Insects | Tagged , , , , , | Leave a comment

Tick bites are making people allergic to red meat, researchers say

If Lyme disease isn’t reason enough to avoid ticks, here’s another: the  inability to enjoy a burger.

Odd as it seems, researchers say that bites from the voracious lone star tick  are making some people allergic to red meat—even if they’ve never had a problem  eating it before.

The allergic reactions range from vomiting and abdominal cramps to hives to  anaphylaxis, which can lead to breathing difficulties and sometimes even  death.

Unlike most food allergies, the symptoms typically set in three to six hours  after an affected person eats beef, pork or lamb—often in the middle of the  night.

The bite that seems to precipitate it may occur weeks or months before, often  making it difficult for people to make the link.

Cases of the unusual allergy were first identified at the University of  Virginia at Charlottesville in 2007, and are now being reported as far north as  Nantucket, Mass., and on the east end of New York’s Long Island.

“It’s a huge problem out here,” says Erin McGintee, a pediatric and adult  allergist in East Hampton, N.Y., who says she knows of more than 70 cases and  sees several more each week. “I’ve been trying to get the word out—but there are  still a lot of people who don’t believe it,” she adds.

Click for more from The Wall Street  Journal. 

Read more:  http://www.foxnews.com/health/2013/06/12/tick-bites-are-making-people-allergic-to-red-meat-researchers-say/#ixzz2WnIh1QFh

Posted in Beucher & Son Termite and Pest Control, Biting Insects, Blood Suckers, Blood Sucking Insects, Florida Tick Control, Tick Control, Ticks | Tagged , , , , | Leave a comment

How Killer Bees Kill

 by Jennifer  Viegas  

An Africanized honeybees, a.k.a. "killer bee."
dlplumer, Flickr

Larry Goodwin, a 62-year-old farmer in Moody, Texas, met a painful death last Monday when he accidentally disturbed a hidden hive of Africanized honebees, a.k.a. "killer bees," as he drove his tractor on a neighbor's land.

The bees swarmed from their hive in overwhelming numbers, prompting Goodwin to run to a nearby house and grab a garden hose to try and spray away the fierce insects. But the hive with an estimated 40,000 bees, overtook the farmer and killed him with their stings.

Goodwin's was a horrific and unusual death -- but how exactly do these bees kill?

"These are extremely defensive and dominant bees," said Eric Mussen, extension apiculturist at the UC Davis Department of Entomology and Nematology.

"Africanized honeybees are extremely sensitive to vibrations," Mussen explained. "If a lawnmower goes off several houses away from a colony, for example, the bees could still likely detect the vibrations and sting everyone in the area."

When disturbed, the killer bees have extra soldiers on duty to respond to alarms. The bees are slightly smaller than honeybees and have the same venom load per sting, but a defensive attack, such as the one that killed Goodwin, can be devastating.

Mussen explained that if a European bee colony is disturbed, the victim may be stung 12 to 20 times, or up to 200 times if the entire colony is somehow tipped over or otherwise dramatically bothered.

ANALYSIS: Bold Blooms Bring in the Bees

 

If a killer bee colony senses a threat, on the other hand, the victim could be stung around 2,000 times.

Yet another threat comes from the double-damaging venom. Meletin, the primary pain-inducing compound in the venom, makes up about 50 percent of the mixture. Another component, called "phospholipase A2," gives the venom the ability to damage human tissue. The damage can be so severe that the material can overload the kidneys, resulting in kidney failure days after the individual was stung.

Some doctors overlook the latter problem and release patients before the kidney threat is treated, according to Mussen. In one case, Mussen had to advise a victim's wife to have her dying husband go through dialysis, which eventually saved his life.

Africanized honeybees resulted from a bee breeding experiment that went horribly wrong. Now their numbers continue to expand across the United States.

According to Mussen and an information sheet provided by the University of Arizona College of Agriculture and Life Sciences, the bees are connected to research conducted by Brazilian geneticist Warwick Kerr. The Brazilian Agriculture Ministry had Kerr bring African honeybee queens to Brazil for breeding experiments. (more)

Posted in Florida Bee Control | Tagged , , , , | Leave a comment

Crazy Ants Taking Over Gulf Coast

Posted in Florida Ant Control | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Tampa, Pinellas County nitrogen ban begins

CLIFF MCBRIDE/STAFF
The ban on nitrogen-based fertilizer is in effect only during the rainy summer months.
    

CLIFF MCBRIDE/STAFF
The ban on nitrogen-based fertilizer is in effect only during the rainy summer months.
1
1

 

 

 

By Mike Salinero | Tribune Staff Published: June 1, 2013

   <drop_initial name=”drop_initial” displayname=”drop_initial”>TAMPA Starting today, home and garden stores in Tampa and Pinellas County won’t be offering fertilizer that contains nitrogen, a nutrient vital to plant growth.
Ordinances passed by Pinellas in 2010 and by Tampa in 2011 prohibit the sale or application of nitrogen-containing fertilizer from June 1 through Sept. 30 in those jurisdictions. Hillsborough County communities outside the Tampa city limits are not subject to the ban.
The restrictions were enacted in an effort to reduce the amount of nitrogen washed into streams, rivers and bays during the rainy summer months. Nitrogen overload is the main cause of algae growth, oxygen depletion and fish kills in state waterways, scientists say.
“Storm-water runoff in general is a major source of nitrogen to the bay,” said Nanette Holland O’Hara, public outreach coordinator for the Tampa Bay Estuary Program. “About 20 percent of the storm-water runoff is coming from residential runoff which includes fertilizer.”
The 40 or so local governments around Florida that have passed some type of summertime restriction on nitrogen-based fertilizer did so despite intense opposition from fertilizer and yard maintenance companies.
Industry lobbyists also tried this spring, as they have in years past, to get the Florida Legislature to prevent local governments from passing rainy season fertilizer bans. Their efforts failed.
Opponents of the fertilizer bans say lawns need nitrogen during the summer months when most growth occurs. During that period, they say, the plant’s roots suck up nitrogen quickly, leaving little residue to wash into storm drains.
Instead of a ban, industry lobbyists argued for educating homeowners on proper application techniques.
Brad Morgan, of Morgan Horticultural Services, said the bans could actually be counterproductive to what environmentalists hope to achieve. Many residents and commercial applicators will put twice as much fertilizer out in May and October to compensate for the summer ban, he said.
“You’re going to get a lot of runoff because the plant is not going to be able to take it up as fast,” Morgan said.
Plus, the ban is uneven. The Hillsborough County Commission declined to enact a total-summertime prohibition, despite recommendations from their own county Environmental Protection Commission and from scientists with the Tampa Bay Estuary Program.
Instead, the commission passed a weaker rule that prohibits nitrogen fertilizer use while it is raining, during a flood watch or 36 hours before a storm expected to dump 2 inches or more of rain in 24 hours.
That means residents in unincorporated Hillsborough County, where two-thirds of the county’s population lives, can buy nitrogen-containing fertilizer at their local stores. Tampa residents can easily drive outside the city limits to get theirs.
“No matter what ban is in effect, there are always going to be companies that put out fertilizer too heavy,” Morgan said. “You’re still going have pollution based on people using improper practices.”  (More)

Posted in Beucher & Son Termite and Pest Control | Leave a comment

Summer heat may drive insects indoors

BY TRACY HODGE Published: May 22, 2013

Central Florida’s Agri-Leader Central Florida residents typically spend more time outdoors during the summer months, which means we may be exposed to insects making their homes in the lawn or garden. Hot summer temperatures may also drive insects indoors, seeking food and shelter from the heat. Ants are one of the most difficult pests to control, both indoors and out. While most species of ants are merely a nuisance, there are some that can deliver a painful sting or damage the structure of your home. The Florida carpenter ant is a common central Florida pest. These ants are often found living under rotting tree stumps, beneath rocks and around trees, especially palms. Carpenter ants prefer nesting sites that are safe from predators, easy to access and have an abundance of food and moisture.

This means that your home may be just the spot they are looking for. Some places they may be found nesting are underneath attic insulation, beneath dishwashers and behind wood paneling. Heavy infestations of carpenter ants can be especially problematic, because they often cause serious damage to the structure of the home when they tunnel through wood to make their nests. Indoors, ants will eat most any food in your kitchen, which means they can contaminate your food and make you sick. Fire ants are also a problem during the summer in our area. These ants are aggressive and can deliver a painful sting to both humans and animals when threatened. When the weather is cool, fire ants prefer to make their nests in outdoor areas exposed to the sun, but may move indoors when the weather gets hot. It is important to prevent ant infestations to avoid damage to your home, as well as eliminate potential health risks. There are some things you can do this summer to keep ants outdoors where they belong. First, be sure to eliminate any areas of standing moisture in your yard and garden. Get rid of anything that collects rain water such as flower pots, buckets and old tires.

Since ants often nest underneath wood, keep firewood well away from your home. Tree branches can provide ants with an easy entrance point, so keep branches trimmed. Ants often feed on plant pests such as aphids and whiteflies. Using an insecticide on your plants and shrubs will eliminate this source of food. Take the time to look around the outside of your home. Inspect around your window sills, door jambs and faucets for any cracks that ants can use to come inside. Be sure to use caulk to seal any cracks and crevices to keep them out. You must also be sure to reduce any areas of food and moisture inside your home. Keep pet food dishes clean and clean up any spilled food and dispose of garbage on a regular basis. Be sure to keep all food in containers with tight fitting lids and clean your counters to reduce infestations. While there are many home remedies that are believed to reduce ant infestations, most do not work effectively. The University of Florida, IFAS Extension recommends homeowners avoid using soap solutions, gasoline and bleach solutions to eliminate ants. Instead, rely on EPA approved chemical products to keep them under control.

Granular baits are often applied directly to ant mounds or spread over larger areas. Dusts contain active ingredients such as pyrethroids and are available for ant control. These products typically work best when spread over an undisturbed mound. (More)

Posted in Beucher & Son Termite and Pest Control | Leave a comment

Florida a termite’s paradise

 

 
Eastern sub alates and workers.

 
Eastern sub alates and workers. / James Castner/ Special to news-press.com

Written by
Cathy Chestnut
Eastern sub workers. / James Castner/Special to The News-Press

Ants in your pants?

See invading ants? Find where they’re coming from. Look for a trail, or a pattern in their appearance. The best way to control them in the house is to kill them in their nest. If you find the nest outdoors, apply an ant insecticide directly to it. If it’s inside a wall, drill a 18-inch hole and squirt an insecticide or boric acid dust into the cavity. If you can’t find the nest, use ant bait. The containers look like tiny flying saucers with holes in the sides. They do work, but it can take weeks to kill them all, so be patient.
Source: familyhandyman.com

Silverfish. / Lyle Buss/Special to The News-Press

More

Have you ever heard the old joke about the termite colony that crossed the road?

Probably not, because the rapacious invaders aren’t a laughing matter in Florida, which has a reputation as the nation’s “termite belt.”

The National Pest Management Association estimates that subterranean termites cost homeowners throughout the United States $5 billion per year. That’s more than fires, floods and hurricanes combined.

And now may be a good time to check your property for signs of the ravenous, winged critters because ideal swarming conditions are settling upon Southwest Florida. What’s the perfect environment?

“Ample rain, food and warmth,” says Faith M. Oi of the University of Florida Entomology and Nematology Department — and that mirrors spring and summer here. “Ideal conditions are Florida conditions,” she says, noting that they abate only during drought conditions.

Subterranean termites can hide out undetected and munch on wood for five years, says Phil Jackson, South Florida district manager for the HomeTeam Pest Defense. When the colony “is at full size, the queen lays eggs and begins producing reproductive swarmers and they are sent out to start another colony,” he says.

Jackson explains that swarmers take off in high humidity so they don’t “dry out” before returning to damp soil, while worker termites remain burrowed in the soil and can’t withstand open-air travel. (Swarmers are limited in flight, and may not even cross the road.)

According to HomeTeam’s research, 35 percent of homeowners have experienced a termite problem. Some people may see winged ants and panic. But you don’t have to if you know the basic difference: Termites’ wings are equal in size and they have straight beadlike antennae, while ants’ wings are larger in front and smaller in back. Also, ants have elbowed antennae.

There are generally two types of termites in this region: subterranean and dry wood. Here are some things to watch for in your house:

• Mud tubes: Termites use long tunnels, made of soil and partially digested cellulose, as a means to get to their food source — wood

 

 

• Swarmers: Check near doors and window for a termite swarm, as it can be one of the first signs of an infestation.

• Wings: After termites swarm, they shed their wings near windows, doors and light fixtures. Piles of wings could mean there is a colony hiding out in the walls.

• Subterranean damage: Check the wooden areas of your home for mud tubes and hollowness; termites can feed for years before an infestation is discovered. “Unless you find tunnels, they’re almost invisible until you see damage,” says Jackson.

• Dry wood damage: If you see little piles near baseboards, furnishings or along outside walls that look like ash or ground-up tobacco, and the pile reappears after you have cleaned it up, that’s a sure sign of dry wood termites. They live in walls and furnishings, and keep their “home” clean by removing excretion.

To make matters more challenging, the Florida Department of Agriculture is reportedly planning to launch a public relations campaign in South Florida about a new threat: the Caribbean conehead, which became established on the East Coast in Dania Beach in 2001, though at this point, it’s believed they’re limited to a 1-square-mile area.

How can homeowners prevent an infestation?  (Continue)

Posted in Beucher & Son Termite and Pest Control, Florida Subterranean Termites, Florida Termite damage, Florida Termite Inspection | Tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

Thriving since 1960, my garden in a bottle: Seedling sealed in its own ecosystem and watered just once in 53 years

This article has nothing to do with pest control. I found it very interesting and wanted to share it with all of you.  – Jim

  • David Latimer first planted his bottle garden in 1960 and last watered it in 1972 before tightly sealing it shut ‘as an experiment’
  • The hardy spiderworts plant inside has grown to fill the 10-gallon container by surviving entirely on recycled air, nutrients and water
  • Gardeners’ Question Time expert says it is ‘a great example just how pioneering plants can be’
 

By David Wilkes

PUBLISHED:05:45 EST, 24 January 2013| UPDATED:04:41 EST, 25 January 2013

To look at this flourishing mass of plant life you’d think David Latimer was a green-fingered genius.

Truth be told, however, his bottle garden – now almost in its 53rd year – hasn’t taken up much of his time.

In fact, on the last occasion he watered it Ted Heath was Prime Minister and Richard Nixon was in the White House.

Scroll down for video

 

Still going strong: Pensioner David Latimer from Cranleigh, Surrey, with his bottle garden that was first planted 53 years ago and has not been watered since 1972 - yet continues to thrive in its sealed environment

Still going strong: Pensioner David Latimer from Cranleigh, Surrey, with his bottle garden that was first planted 53 years ago and has not been watered since 1972 – yet continues to thrive in its sealed environment

For the last 40 years it has been completely sealed from the outside world. But the indoor variety of spiderworts (or Tradescantia, to give the plant species its scientific Latin name) within has thrived, filling its globular bottle home with healthy foliage.

Yesterday Mr Latimer, 80, said: ‘It’s 6ft from a window so gets a bit of sunlight. It grows towards the light so it gets turned round every so often so it grows evenly.

‘Otherwise, it’s the definition of low-maintenance. I’ve never pruned it, it just seems to have grown to the limits of the bottle.’

The bottle garden has created its own miniature ecosystem. Despite being cut off from the outside world, because it is still absorbing light it can photosynthesise, the process by which plants convert sunlight into the energy they need to grow.

 

Lush: Just like any other plant, Mr Latimers's bottled specimen has survived and thrived using the cycle of photosynthesis despite being cut off from the outside worldLush: Just like any other plant, Mr Latimers’s bottled specimen has survived and thrived using the cycle of photosynthesis despite being cut off from the outside world

HOW THE BOTTLE GARDEN GROWS

Bottle gardens work because their sealed space creates an entirely self-sufficient ecosystem in which plants can survive by using photosynthesis to recycle nutrients.

The only external input needed to keep the plant going is light, since this provides it with the energy it needs to create its own food and continue to grow.

Light shining on the leaves of the plant is absorbed by proteins containing chlorophylls (a green pigment).

Some of that light energy is stored in the form of adenosine triphosphate (ATP), a molecule that stores energy. The rest is used to remove electrons from the water being absorbed from the soil through the plant’s roots.

These electrons then become ‘free’ – and are used in chemical reactions that convert carbon dioxide into carbohydrates, releasing oxygen.

This photosynthesis process is the opposite of the cellular respiration that occurs in other organisms, including humans, where carbohydrates containing energy react with oxygen to produce carbon dioxide, water, and release chemical energy.

But the eco-system also uses cellular respiration to break down decaying material shed by the plant. In this part of the process, bacteria inside the soil of the bottle garden absorbs the plant’s waste oxygen and releasing carbon dioxide which the growing plant can reuse.

And, of course, at night, when there is no sunlight to drive photosynthesis, the plant will also use cellular respiration to keep itself alive by breaking down the stored nutrients.

Because the bottle garden is a closed environment, that means its water cycle is also a self-contained process.

The water in the bottle gets taken up by plants’ roots, is released into the air during transpiration, condenses down into the potting mixture, where the cycle begins again.

 

Photosynthesis creates oxygen and also puts more moisture in the air. The moisture builds up inside the bottle and ‘rains’ back down on the plant.

The leaves it drops rot at the bottom of the bottle, creating the carbon dioxide also needed for photosynthesis and nutrients which it absorbs through its roots.

It was Easter Sunday 1960 when Mr Latimer thought it would be fun to start a bottle garden ‘out of idle curiosity’.

He said: ‘At the time the chemical industry had changed to transporting things in plastic bottles so there were a lot of glass ones on the market.

‘Bottle gardens were a bit of a craze and I wanted to see what happened if you bunged the thing up.’

 

Habitable zone: The spot under the stairs where Mr Latimer has kept the bottle garden for the past 27 yearsHabitable zone: The spot under the stairs where Mr Latimer has kept the bottle garden for the past 27 years

A SELF-CONTAINED WORLD: HOW TO MAKE YOUR OWN BOTTLE GARDEN

The idea of a bottle garden is to create a world in microcosm. It will have its own special habitat and should require little maintenance, writes NIGEL COLBORN.

First choose a glass container. It will need a wide neck for easy access and to look attractive. A goldfish bowl is ideal, or for children, a big jam jar might do.

You’ll also need some good-quality potting compost, shingle or coarse grit and, of course, the plants.
Use a large spoon to insert a layer of grit into the jar and cover that with compost deep enough to accommodate the plant roots.

Finally, introduce the plants. You’ll need very few and they must be tiny specimens – unless it’s an enormous receptacle. Little ferns such as indoor maidenhair or Adiantum, small varieties of Tradescantia and baby plants of Chlorophytum will all establish easily. Miniature trailers such as ‘Mind-your-own-business’ (Soleirolia) will also flourish.

Move each plant gently into position, adjusting them with a stick or with kitchen tongs until you’ve got them where you want them. Adding a final layer of grit after planting will hold the compost down and make your micro-garden look prettier.

Water with extreme care (your jar won’t need much) and place the finished mini garden in a well-lit spot, but not on a hot south-facing windowsill.

Into a cleaned out ten gallon carboy, or globular bottle, which once contained sulphuric acid, he poured some compost then carefully lowered in a seedling using a piece of wire.

He put in about a quarter of a pint of water. It was not until 1972 that he gave it another ‘drink’.

After that, he greased the bung so it wedged in tightly… and has not watered it since.

The bottle stands on display under the stairs in the hallway of his home in Cranleigh, Surrey, the same spot it has occupied for 27 years after he and his wife Gretchen moved from Lancashire when he retired as an electrical engineer.

It was revealed to the world when he took a photograph of it in to BBC Radio 4’s Gardeners’ Question Time and asked the panel of experts if it is ‘of scientific or horticultural interest’.

Garden designer and television presenter Chris Beardshaw said: ‘It’s a great example of the way in which a plant is able to recycle… It’s the perfect cycle of life.’

He added that this process is one reason why NASA was interested in taking plants into space.

‘Plants operate as very good scrubbers, taking out pollutants in the air, so that a space station can effectively become self-sustaining,’ he said. ‘This is a great example of just how pioneering plants are and how they will persist given the opportunity.

‘The only input to this whole process has been solar energy, that’s the thing it has needed to keep it going. Everything else, every other thing in there has been recycled. That’s fantastic.’

Organic gardener Bob Flowerdew was less enthusiastic.

‘It’s wonderful but not for me, thanks. I can’t see the point. I can’t smell it, I can’t eat it,’ he said. Mr Latimer agrees the bottle garden is ‘incredibly dull in that it doesn’t do anything’, but remains fascinated to see how long it will last.

He hopes to pass on the ‘experiment’ to his grown-up children after he is gone.

If they do not want it, he will leave it to the Royal Horticultural Society.

 

Read more: http://www.dailymail.co.uk/sciencetech/article-2267504/The-sealed-bottle-garden-thriving-40-years-fresh-air-water.html#ixzz2J5d36E9C
Follow us: @MailOnline on Twitter | DailyMail on Facebook

Posted in Nothing to do with pest control but interesting stuff! | Tagged , , , , | Leave a comment