Ask a Question
Notify Me On Question Update
Email this Question
Sandy, Utah area (foothill benches. I am seeing sparse (not dense threads or tent-like)spider webs spanning approx 1-2 inches in the crotches of various limbs on scrub oak (no bugs or spiders are visible, however, did recently see only one yellowish/brown spindly pointed legs/body spider on limb which was about 1/2 - 3/4 inch if legs were spread from end to end). I've never seen spider like it before and can't identify on internet or books. Any thoughts, advice, or place to reference on what and how to treat? Scrub overhangs patio and everyone is paranoid to sit under trees. This is only affecting a few trees near pation, not seen on all scrub oak on property.
Rate This FAQ
Can you describe the webs in greater detail? It would be ideal to
have one of the spiders identify, but if that is not possible don't
worry about it.
Generally speaking I do not like the thought of spiders coming
down on my head either, but I do not think that these spiders will
cause you any harm. There are only 3 spiders of concern in Utah
(the Hobo, black widow, and yellow sac spider),and that doesn't
sound like any of them. You probably already know what a black
widow and a hobo look like... In terms of the yellow sac spider,
what you have described doesn't sound like their usual behavior.
Here is a picture of a yellow sac spider:
When bitten by one of these your body usually reacts the same
as if you were bitten by a mosquito. In severe cases some localized
skin necrosis might ensue. People in Utah are probably most commonly
bitten by these spiders in their home.
If you are actively looking for spiders and can't find any, then
they are likely not a problem. I would consider their webs
a benefit as they may be catching mosquitoes, gnats, etc. If you
want to do something about the webs I would recommend spraying
them out of the tree with a hose. If you do this enough it may
deter the spiders from building webs, and may drive them off
to other trees to inhabit.
Please let me know if you want more information and I will get
back to you ASAP.
Submit Your Suggestion
Other Questions In This Topic
- We have a deck that holds a raised hot tub about 3 - 4 feet off the ground (it's on a wood stand). Unfortunatley, bees or wasps (not sure which) have decided to use the insulation underneath the hot tub as their home. Help! I have elementary age kids that are always outside. How do I get rid of them?
- I am interested in beekeeping, and am currently reading several books on the subject. All of the books have said, "contact your local extension office to find out about apiary organizations and to register your hives." I've looked all over your site and can't find anything on this subject for Washington County. Where can I find information on apiary organizations in this area?
- We planted linden trees this year and wrapped the trunks with white corrugated tubing to prevent sun scald in the winter. In looking at leaf damage on the outside border of the leaves, I noted that there were literally hundreds of small gray/black flying insects clustered under the tree wrap. What might they be and are they responsible for the chewed leaves? What treatment is needed?
- I have a house in Kanab with a lot of Desert Poppies and Blue Flax Grass that is pretty tall surrounded by Junipers in the front yard. I think I may have Noseeums. If so how do I get rid of them? I got bit up pretty bad last weekend working in the yard.
- Help! I have a gigantic ant problem (millions of small black ants) in my garden. They are everywhere: in the flower beds, the veggie garden, the lawn, under the sidewalks and driveway. I have tried the sprays and spreadable pesticide from Lowe's, but nothing seems to work. They seem to multiply by the day, and are making work in the garden creepy and painful (they bite too). What can I do? There is no obvious food source around; except they seem to be eating the iris' roots. I live just above Orchard Drive and Bountiful High School. What can I do?
- I was camping in Big Cottonwood Canyon this weekend. Sunday Morning a large beetle landed on my leg. I flicked it off. As we were taking down camp more of this same beetle kept landing on me. It had about and inch long body and almost double that with the antenna. I was hoping you could help me identify it and tips that may be useful for preventing them from pursuing me in the future.
- I have an infestation of giant willow aphids. How do I get rid of them? What damage will they do?
- Do you know of any pest control companies that have an effective treatment for controlling box elder bugs in the fall before they get in the house?