It’s Brown Recluse Time Again

 

 

 

It’s Brown Recluse Spider Season

That's the spider with the violin markings on its back sometimes called 
the fiddleback spider, brown fiddler, or violin spider. 
Brown recluse spiders are rather shy and non aggressive, but they have 
a powerful poison. 
Occasional bites happen because people and brown recluses often share 
the same living space. These spiders like dark corners and places inside 
the house, and also live under the furniture, boxes and books. From a 
research team at Kansas State University's Department of Entomology, 
here are 10 things to know about these venomous spiders that like to 
live where we do:

1. Brown recluse spiders are found outdoors in the U.S. Midwest, as well 
as inside structures. They tend to thrive in the same environments 
that humans do.

2. 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.

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, six to 12 months.  Remember, they are 
only active from March to October so this may take one to two years. 
Then they may live two to three years as adults. Females can produce two 
to five egg cases during this time (two or three is most common) and each 
may contain 20 to 50 spiderlings.

6. 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.

7. 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.

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.

Yes, we have them in our area too!

This information has been provided by the Earth Sky News website.
Check it out for the latest up to day science news.  It's a great site!

Jim