Grapes [North]
Grape Berry Moth
Up to three generations of grape berry moth can be seen each year. Newly hatched larvae are creamy white with a dark brown head and thoracic shield. When growing, the body becomes greenish and eventually turns purple. Mature larvae reach 1/3 inch long and have a light brown head, with a dark-colored thoracic shield.
Pupae are about 1/5 inch long and are greenish-brown to dark brown. Adults are about 1/4 inch long and during rest, with its wings folded, there is a brown band across the middle of the insect. The hind portion is gray-blue with brown markings, while the front portion is gray-blue without markings. Wingspread is about 3/8 to 1/2 inch long. The forewings are gray-blue at the base and become cream-colored with brown patches toward the tips.
Recommendations
Intrepid ® 2F insecticide, with the active ingredient methoxyfenozide, and SpinTor® 2SC Naturalyte® insect control, with the active ingredient spinosad, are ideal rotational partners in a foliar treatment program for these pests. These products can be rotated with the active ingredient fenpropathrin in a resistance management program. |
For information about grape berry moths, visit the New York State IPM Fact Sheet.
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