Flea beetles overwinter in leaf litter or wooded areas and emerge in early spring to begin feeding on their preferred host plant. The adult beetles mate and lay eggs in the soil nearby and, when the eggs hatch, the developing larvae feed on plant roots and underground stems.

Where do flea beetles come from?

Adult flea beetles become active in early spring. Depending on the species, females lay single or clusters of eggs in small holes, in roots, soil or leaves of many vegetables as well as occasionally on flowers and ornamental shrubs and trees.

What conditions do flea beetles like?

During windy, cold, inclement weather and periods of slow plant growth, flea beetles can feed on seedlings at or near the soil surface. This stem feeding reduces the plant’s ability to supply water to the leaves and particularly under hot, dry conditions, can result in seedling death.