Insects On Garage Door - Knowledgebase Question

Fairfax Station, VA
Question by Patbobval
November 24, 1999
There are hundreds of small, brown,inch worm-like bugs crawling on my garage door. They are most prevelant at night. I have sprayed with a standard plant/vegetable insecticide but it doesn't seem to work. I sprayed them off with water but they reappeared within a couple of hours. What are they and how do I control them?


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Answer from NGA
November 24, 1999

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Without seeing them, I'm just venturing an educated guess, based upon your gardening region and the time of year. They may very well be bagworms. These little guys spend their time in a small cocoon with only their heads sticking out. Usually they cluster in conifers, but sometimes they appear on the sides of houses. They're not doing any damage to your garage door, and hosing them off is an easy way to get rid of them. They'll stop appearing as soon as the weather gets really cold. Next year, if there's a large enough population, natural predators will show up and feed on them.

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