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Spider Traps
- Use easy-to-construct sticky traps -
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Summary: Sticky board traps are a safe and effective method for eliminating a variety of crawling insects and spiders. The traps are easy to construct of cardboard and sticky Tangle-Trap™ coating
Jack DeAngelis, PhD
OSU Ext. Entomologist (ret.)
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Hunting & wandering spider control
Most spiders stay close to their webs lying in wait for prey. Some spiders, however, wander in search of prey, or mates at certain times of the year. Male hobo spiders (in fall) and brown recluse spiders are of this hunting/wandering type. Since wandering species move from place to place they are more likely to be found indoors. The number of spiders found indoors can be greatly reduced using simple sticky traps without the use of insecticide sprays.
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Construction layout for homemade a spider trap. Fold along lines and tape along top to make a triangular "tube".
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Sticky traps are made of cardboard with a sticky material coating on one surface. They are placed along baseboards where wandering spiders tend to move. Spiders are trapped when they walk into the trap and try to cross the sticky surface. No insecticides or attractants (pheromones) are needed.
Spider traps can be purchased online here or homemade. The simplest homemade trap is a piece of cardboard folded into a triangular tube about four inches long and three inches high (see layout drawing above). Coat the bottom inside surface with Tangle-Trap Insect Trap Coating™.
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Tangle-Trap Insect Coating™ is a non-toxic sticky material that is available as a thin aerosol spray, a thicker "brushable" liquid, or as a thick paste. It is widely used in forestry and greenhouse pest management to construct traps and barriers for a variety of insect pests.
Constructing the spider trap
Spider traps are very simple to make. Cut a piece of cardboard (cereal box cardboard works great) about 4"x9". Draw lines at 3" intervals along the long side (see drawing above right). Paint the middle section with Tangle-Trap sticky coating. Use the "brushable" type formula of Tangle-Trap. If the cardboard is too absorbent, coat it with a water-based polyurethane before the Tangle-Trap. Fold the sides up and tape along the top seam making a triangular "tube". You're done!
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Be sure to use the "brushable" type of Tangle-Trap because the aerosol spray is a bit too thin and the paste type is too heavy. You can order brushable Tangle-Trap through a lawn and garden store or here Tangle Trap @ Arbico-Organics (search on "tangle trap"), one of our affiliates. The cost of brushable Tangle-Trap is about $25 per quart which is enough for a lot of spider traps. Fortunately the same sticky coating material can also be used for other homemade insect traps for pests like fruit flies, ants and cockroaches.
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Once made you can place your traps with the long side against baseboards, behind furniture and inside cabinets because spiders usually travel near the base of walls. Use several traps per room. When they encounter the trap opening spiders will wander inside and get caught in the sticky material. You can dispose of used or dirty traps in household trash.
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Mission: To provide accurate, up-to-date and unbiased information for solving common insect and mite problems around your home, business and landscape using least-toxic methods.
Jack DeAngelis, Ph.D.
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Copyright © 2004-... LivingWithBugs, LLC. All rights reserved. Page Updated: 3/5/2010
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