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Banded grape bug
Rufus Isaacs, MSU Entomology
Home > Scouting guide> banded grape bug
The banded grape bug has piercing-sucking mouthparts that it inserts into plant tissue to suck out plant sap. It completes one generation per year on grapes and is active in vineyards from shortly after bud break to early July. It spends most of the year as an egg, which is the overwintering stage. Eggs are laid in crevices on second-year wood and vine trunks. They hatch when shoots are approximately 2 to 5 inches (5 to 13 cm) long. The nymphs then begin feeding on shoot tips and newly emerged leaves. Feeding is concentrated in the stalks of individual florets, the buds and the cluster stem. Nymph development takes about 3 weeks, with adults appearing in early June.
Banded grape bug
As few as one nymph per 10 shoots can cause economic damage. Adults are predators and therefore do not damage grapes. A smaller green-colored plant bug, Lygocoris inconspicuous, has similar timing and damage potential.

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Funding for this web site provided by Project GREEEN, American Farmland Trust, EPA Region 5's Strategic Agricultural Initiative program, The National Foundation for IPM Education, the Center for Agricultural Partnerships and the MSU Integrated Pest Management Program in collaboration with MSU Extension and the Michigan Agricultural Experiment Station. Partially support from NC-IPM Center.

05/24/11 Contact: E. Haney
     
Michigan Agricultural Experiment Station Michigan State University Extension