How To Get Rid Of Spiders.

Question

I don’t mind a few spiders in my yard, but we are overrun with them. There are spider webs encasing branches and chairs and long webs from one object to another. I can spray them or knock them down, but within 24 hours they are back. It is difficult to enjoy the yard and it takes a huge cleaning any and every time we want to sit on the patio furniture. Please help!

Answer 1

Insecticides available to the public won't have a residual effect on spiders and aren't recommended for outdoor use. You would have to actually spray the spider. The best thing to do is to crush the spiders when you see them. Vacuuming up their webs on the patio may get the spiders as well and usually kills them. A blast of water from the hose will knock them and their webs off the shrubs or patio furniture.

You can also reduce their hiding places, such as woodpiles, clutter, and thick vegetation. Outdoor lights on at night will attract insects, which will in turn attract spiders. Sodium vapor bulbs will not attract as many insects. Your local county extension agent may have more tips.

If the problem persists, you may need to consult a professional who has more products available to use. These articles should help:

https://ipm.ucanr.edu/PMG/PESTNOTES/pn7405.html

https://www.gardeningknowhow.com/plant-problems/pests/insects/spider-garden-pests.htm

http://npic.orst.edu/pest/spiders.html