In late summer spider populations can become noticeable and may aggravate some people with their presence in and around structures. Integrated pest management is critical to spider control. After identifying the type of spider causing the problem through an inspection, steps should be taken to prevent spiders from entering. That includes sealing entry holes, caulking around windows and doors and screening windows. In addition, switching the lighting to “bug” lights (yellow bulbs) or on commercial buildings using sodium vapor instead of mercury vapor lamps. Reducing and eliminating clutter, such as stored items, books, boxes, lumber, will reduce spiders. Outside, keep turf and lawn areas mowed, and keep vegetation off the structure. Inside, utilize a dehumidifier in humid areas, such as basements. Most important, remove spider webs and egg sacs with either a vacuum or a brush.
-Lauren Greenhow, General Manager, GreenHow, Inc.
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