Both adult and immature Brown Recluse Spiders are capable of injecting poisonous venom which may result in serious damage to skin tissue and necrotic lesions. The venom continues to destroy tissue over a period of days to weeks which may result in a necrotic ulcer and a deep scar. If bitten, call a physician or go to the emergency room immediately!
BROWN RECLUSE BIOLOGY BASICS:
- Found throughout Missouri and the central and southern states.
- Adults are 1/4 – 1/2 inches in body length.
- Tan to dark brown in color with a dark “fiddle” shaped marking on their cephalothorax.
- Females deposit 40-50 eggs in a silken egg sack and can produce 1-5 egg sacks in her lifetime.
- Eggs hatch in 25-39 days, undergo 6-7 instars and molts, and become adults in 7-12 months. Average life span is 2-4 years.
- Mostly nocturnal and feed on silverfish, cockroaches, crickets, and other soft bodied insects dead or alive.
- Adult and immature brown recluse produce poisonous venom that damage tissue.
- Bites are usually painless followed by soreness or intense pain within 6-12 hours.
- Pimple like blister will usually appear along with swelling within 10-14 days.
- Dead skin may slough away in the bite area along with a possible open ulcer exposing muscle and/or bone.
- Brown Recluse are commonly found both indoors and outdoors.
COMMON AREA TO FIND BROWN RECLUSE:
Outdoors – beneath rocks, piles of lumber or debris, utility boxes, woodpiles, under tree bark, storage sheds, barns, under porches, cedar shake roofs, etc. Indoors – boxes, papers, clothing and shoes, underneath tables and chairs, crevices of baseboards, doors and window moldings, storage areas, wall voids, voids above suspended ceilings, closets, bedrooms and bedding, garages, attics, crawl spaces, basements, behind insulation, and any other non-disturbed area.
WHAT’S THE SOLUTION?
Short term – perform a thorough inspection and initial treatment to the exterior, interior, attic, crawlspace (if present), and all accessible void spaces. Treatments will be performed using a combination of residual sprays and dusts. The initial treatment should be followed by 2-5 continuous monthly services for the most effective control. Long term – perform the same procedure as the “short term” program and maintain control and elimination with one of our regular service programs such as: monthly, bi-monthly, quarterly, or 5-Star service.