First and foremost, it’s important to understand spiders. While the specific biology and habits of each species differs, all spiders are predatory and typically feed on small insects. Some spiders are categorised as sedentary web-builders that rely on prey becoming entangled in a sticky web, while others are stealthy, efficient hunters that move about in search of prey.
With the exception of a few medically important species, this predatory habit of spiders makes them beneficial to homeowners because they reduce the number of insects that enter our living spaces. Without the predatory activities of spiders, we would be overrun with insect problems.
Here is a list of tips for reducing spider-conducive conditions, particularly food and harborages.
- Seal Entryways: Spiders find entry into structures around doors, windows, utility piping, air vents, weep holes in masonry and other openings. Where possible, seal these entry points by caulking, repairing vent components, replacing weather-stripping, and placing screen or air-permeable material in weep holes.
- Reduce Clutter: Spiders and their insect prey thrive on the multitude of harborage opportunities afforded by cluttered storage areas such as garages, storerooms, attics or laundry rooms. Boxes in attics are a common harborage for dangerous spiders and other spiders. Removing clutter and organizing stored materials on wall shelving, and not on the floor.
- Remove Webs: Removing webs with a vacuum or a “Webster” can be a very effective procedure for reducing spider problems. Not only does web removal eliminate the unsightly web itself, many spiders are removed in the process.
- Manage Outdoor Lighting: Outdoor lighting is usually positioned for security purposes, but insects that occur around structural entry points are influenced by lighting type and installation. Because insects tend to rest on surfaces that are lit or are within a few feet of light source fixtures, spiders are also drawn to these areas in search of prey.
Light sources that radiate ultraviolet energy and blue light are most attractive to flying insects, while lights with a deficiency of ultraviolet and blue are less attractive. Insects see fluorescent black lights, mercury, and metal halide best. Insects have a difficult time seeing incandescent, high-pressure sodium and bug light incandescent (yellow) lamps. Position lighting to minimize lit surfaces close to windows and doors so spiders and insect prey are not directed towards structural entry points. Hope this helps you and remember that if you have any questions you can always call us on 0406 983 822.
We will always be happy to answer any of your pest control questions.