Answer: Flea beetles produce a characteristic injury known as "shotholing." The adults chew many small holes or pits in the leaves, which make them look as if they have been damaged by fine buckshot. Young plants and seedlings are particularly susceptible but will outgrow the damage as they mature. Diatomaceous earth is one of the more effective repellents, applied as a dry powder to the plants. Neem insecticides also have some repellent effect on this insect.
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