Spiders are beneficial too!
Our Integrated Pest Management program has long included encouraging and buying, when necessary, beneficial insects. Ladybugs, praying mantis, aphid predators and parasites, lacewings, leafminers, thrips, whitefly parasites, and others offer a virtual arsenal against the specific insects the would do our garden harm. Knowing which ones to use against what problem pests is valuable knowledge for gardeners seeking to avoid harmful chemical sprays, dusts, and other poisons.
There’s one beneficial predator not generally considered and, for the most part, not commercially available (except as pets) that can play an important role in keeping your garden clears of pests: the spider. Unfairly thought of as dangerous and a nuisance, especially when discovered inside your home, spiders are actually an effective predator in the garden and, despite our fears, mostly aren’t dangerous (with some exceptions). (more…)