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
- I found a possible red and blue leaf hopper on a plant in my yard. Some experts I have contacted say we don't have them in the west. Could it be identified by you to species if I catch one and bring it in? I do have a photo of it.
- We have ants inside and outside of our house. Twice a year, we have flying ants in the basement of our house. In our garden and strawberry patch, we have big aggresive ants that make it difficult to enjoy our strawberries. What is the best way to get rid of the ants in these places? Is is ok to poison them around the strawberries? What about in the house?
- Is there any evidence of free run chickens significantly controlling flies from horse manure? I have neighbors who rely solely on a single hen and rooster to control flies for their two horses in a paddock, not a pasture. No other form of control is used. While chickens may, in fact control insects, I suspect the only real way to control insects (particularly flies) is to routinely (daily or weekly) police the manure and dispose of it. Is there any literature on the subject?
- We have flying, black bugs with orange/red spots by the eyes. They are all over our year old peach trees. Do you have any idea what they could be and how we can get rid of them?
- I have a big problem with a little pest in my house. I would call them fruit flies, but they don't hang around fruit. They mostly bug me as I sit here at this computer, and often times in the bathroom by the mirror. How can I get rid of these tiny flies?
- We found (we think) a black widow spider in our home last night. It is completely black with a red hour-glass shape on its belly. We are concerned that there may be more of them in our home. I normally am opposed to using chemicals to get rid of spiders or insects, but in this case I think there is a bit of a health risk. I am particularly concerned about the safety of my children whose ages range from 9 months to 5 years. What can I do to get rid of any other black widow spiders that may be in our house, besides trying to keep corners clean, etc.?
- I have spider mites on my IIiamna rivularis. It looks like I also have spider mites on my Mirabilis jalapa. I don't remember of having any problems with growing Mirabilis jalapa before. They have always been an easy plant for me to raise. I have read the article on spider mites and I am wondering if I should just let them go or buy an insecticide like Bayer Advanced 3 in 1 Insect, Disease and Mite control. The spider mites are taking over my yard.
- 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?