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You can buy parasiticYou can buy parasitic nematodes that will attack flea beetles. Ask your supplier (local, mail-order, etc.) what species will attack flea beetles specifically. You might also try placing yellow sticky traps near plants (although this will catch both bad and good bugs). Put down a thick layer of mulch around plants to discourage beetles from laying eggs near them. Keep up with weeding; remove debris/weeds at the end of the growing season. When spraying an alcohol-based spray, test it on a leaf or two and wait a few days—alcohol can injure leaves. Do not apply the spray in hot sun or wet weather. If it looks like the plant will handle the spray, then spray it once. If it rains after several days (which may wash off the spray), you can reapply when the plant is dry again, if needed.

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