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with purple stripes.Pick off the adult beetles and larvae by hand and destroy.Spray with an insecticide - thiocloprid or imidacloprid - between late summer and spring. Avoid using insecticide when the plants are in flower as bees may also be killed

. The adults have six legs and a pair of antennae, moving in the open at night, chewing the edges of leaves. This isn't itself a problem, but the fact that each adult is a female, laying almost 1,000 eggs in summer, is alarming.Holes and notches chewed out

this invasion to be extremely unfair.So what to do? Pesticides applied every spring and autumn will kill the larvae. But I worry that the active ingredient (thiacloprid - a nicotinoid compound related to imidacloprid) also kills bees and other wildlife (you can