How large of a patch of spurge is needed for flea beetles?
This is a common, but difficult to answer, question. Flea beetles can establish populations on small patches of spurge (a half-acre or less), but may eliminate such patches and be unable to maintain a population. Generally speaking, a moderate to dense patch of spurge, a half-acre or more in size, is needed to establish AND maintain a population. On a related topic, scattered patches are OK but scattered plants arent flea beetles cannot establish or sustain a population on scattered plants.
