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Leptinotarsa decemlineataColorado potato beetleShiny, striped, and yellow to orange, these beetles defoliate potato plants. Planting 1 to 2 weeks later than usual may be helpful. Smaller problems easily handled with a vacuum cleaner, or pick and destroy adults and larvae by hand. Spined soldier bugs, Podisus maculiventris, are commercially available predators; lures to attract it also exist. Bacillus thuringiensis var. san diego effective, as are some tachinid flies. Spray with neem, pyrethrins, rotenone, if other measures fail.
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