From there insects are distributed to county extension agents for placement in satellite insectaries. From there there are distributed to individual landowners for release on spurge infested pasture and range land. Leafy spurge-infested grasslands. Adult beetles feed on leafy spurge leaves and flowers. Larvae feed within the root crown and larger lateral roots.
Winter is spent in the larval stage.
Chrysomelid Flea beetle Photo by R. Richard Aphthona cyparissiae Approved for release into the U.S. in 1986. Large populations are present in Wyoming, Montana, Colorado, and Wisconsin. Leafy spurge-infested grasslands. Adult beetles feed on leafy spurge foliage and flowers, and high populations may defoliate spurge plants. Larvae burrow into the soil and begin feeding on very small leafy spurge roots and as the grow they feed on larger roots and root buds.