There are several flea beetle species in Colorado. These beetles commonly attack vegetable plants including tomatoes, potatoes, peppers, eggplant, cabbage, broccoli, beans, radishes, beets and lettuce. Adult flea beetles are small and shiny, and when disturbed, they jump. The western cabbage flea beetle, pale-striped flea beetle and western potato flea beetle are the most damaging species. They eat small holes in leaves and, during heavy infestations, plant growth is greatly reduced and the plant may die. Several flea beetle species overwinter as adults under plant debris or weeds. To prevent a flea beetle attack, a gardener should use healthy, actively growing transplants and encourage their rapid establishment. Floating row covers also can exclude flea beetles from the garden. When necessary, a carbaryl insecticide like Sevin, or diatomaceous earth can be used to control heavy infestations. For additional information see the PlantTalk script, Flea Beetles on Vegetables.

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