The larvae of Colorado Potato Bugs are orangish brown with two rows of black dots down the side. See the pic.
I try to minimize the chemicals I use; I did battle with fingers, then a cordless vacuum. That actually worked well for a while (small patch, took me about 10 minutes to go through).
But I got busy with work, couldn't get to it for a couple weeks and the population took off and a few of the plants where approaching 40% leaf loss. Some rotenone took care of them nicely before the larvae pupated.
Carbaryl (Sevin) is also recommended. Might be a good idea to be ready to switch year-to-year if you don't see one being that effective.
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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