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Hobo Spider Identification and Control in Utah
Correct identification is an important first step in pest control.
Tegenaria Agrestis
Correct identification of a hobo spider can be difficult and really requires a microscope to examine the reproductive structures of the spider. That being said here are some things to look for:
- Adult hobo spider bodies are up to 3/8 of an inch long (longer if you include the legs)
- Does not have two distinct stripes on cephalothorax – Hobo has more diffused pattern
- No dark rings around the legs
- Legs and cephalothorax are not shiny
You may not be able to know if a spider is a hobo for sure or not with these keys, but you can usually identify when a spider is not a hobo spider.
Hobo spiders can be found outside in grass, gardens, ornamental plants and trees, along foundations, log piles, under rocks and lawn ornaments, etc.
When indoors they can be found in tubs and sinks or running along the floor.
Need help controlling hobo spiders?
Identify the pest with our Hobo Spider gallery
Hobo spiders can be considered beneficial.
Hobo spiders are fast moving.
Hobo spiders eat other insects.
Why are they significant
Hobo spiders do not cause necrotic lesions in humans and should be considered beneficial. They are very common indoors between August and October.
Name:
Tegenaria agrestis
Impact:
Some debate but they do not appear to be dangerous to humans
Habit:
Nocturnal, meaning they are awake at night
Tips & Tricks
How To Prevent Hobo Spiders
Minimize nesting habitat for hobo spiders around property such as rocks, and logs.
Seal exterior cracks and crevices and install tight-fitting door sweeps at the base o fall exterior doors.
Change exterior lighting to sodium vapor bulbs. Vacuum, step on, or smash individual spiders that enter buildings.
Catch and release (with a glass jar) spiders found indoors.
Use pest monitors to capture invading spiders, especially between August and October.
Don’t let hobo spiders take over.
Thorn can help.
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