Why are brown recluse spiders poisonous,bed bugs bites treatment on skin,ant facts - Step 3

Category: Pest Control Tips | 16.11.2013
The brown recluse reality is obscured by a number of factors, not the least of which involves gnarly internet photos.
Inspired by the comments left on a story we did about the silk of a closely related recluse spider, the South American brown recluse, we decided to take a close look at our own continent’s most despised brown spider and the myths surrounding it. Most physicians don’t have a lot of experience discriminating between a recluse bite and something like necrotizing Staphylococcus. There are some ways in which brown recluse bites are different from many other wounds, however. Things that are potentially harmful, move erratically, unpredictably, and sometimes quickly, are easy to fear. Purkis described an experiment in which shocks were randomly paired with either pictures of flowers, or pictures of spiders.
First, spiders in general are easy to fear, and misinformation about this species in particular abounds. Kansas, Oklahoma, the western portions of Tennessee and Kentucky, the southern parts of Indiana and Illinois, and the northeastern parts of Texas round out the recluse’s range.


For example, Vetter and his colleagues studied six years of brown recluse bite records, derived from three poison control centers in Florida.
They’d asked that any and all suspected recluse specimens be submitted for identification. True, there are many things that can cause a nasty-looking flesh wound — but the brown recluse diagnosis carries an unlikely charisma. And even if a patient brings in a spider for identification, it’s unlikely the ER doctor has been trained to ID a brown recluse. But being able to blame a nasty skin lesion on a spider is more satisfying than acknowledging that a necrotic crater has emerged on your arm for no identifiable reason, she says. Here, our fallibility is in our tendency to filter new information and remember facts more easily if they are consistent with our beliefs, Purkis says. If you believe the tales, these small arachnids are biting people all day, every day, producing massive, stinking flesh-craters that require months of intensive care and perhaps a prosthetic appendage. Recluse venom destroys small blood vessels and causes them to constrict, turning the area around the bite white, or purple, or blue.


Sometimes, it seems these spiders have nothing better to do than hunker down in dark corners throughout North America, waiting for tender human skin to present itself. Third, many other conditions can be misdiagnosed as brown recluse bites (like MRSA and fungal infections).
But in 100 years of arachnological data, only 70 recluse spiders (not all of them brown recluses) have been found in the entire state. Even when faced with numbers and geographic distribution maps, people still cling tightly to their beliefs about the recluse and its arachnid malfeasance.



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