Indoors, treating crab spiders can be a tricky affair, as most commercial sprays don’t contain residual materials to deter future crab spiders from entering greenhouses. When you suspect crab spiders are turning your greenhouse experience into an unpleasant horticultural environment, contact Truly Nolen to inspect your greenhouse and determine the culprit of your workplace or leisure time discomfort.
In your garden, encourage songbirds to visit your yard, as they like crab spiders for dinner. Unless you are dealing with an extreme infestation, which is unlikely, crab spiders are harmless to humans and actually help control mosquitoes, flies and other pests in your backyard.
But if you really feel the need to eradicate crab spiders from your patio, porch or pergola, you can consider: