Identifying and Managing Japanese Beetles on Roses

The Flower-Eating Beetle Problem

A reader describes iridescent black beetles with pincers, about 3/8 inch long, that eat only rose flowers—not leaves—and wants them gone.

Japanese Beetle Identification

These are almost certainly Japanese beetles, which preferentially attack rose flowers. They're active for roughly a month each season.

Limited Control Options

Unfortunately, sprays rarely deter them effectively. The most reliable protection is physical exclusion: cover roses with fine netting (bridal veil material works well) during the beetle flight period.

For more detailed information on Japanese beetle life cycles and management strategies, visit: gardening.about.com