Notes on Raspberry Insects
Raspberry fruitworm
Identification
The raspberry fruitworm adult is a small, approximately 4 mm, light brown
beetle covered with short hairs. The larvae are slender, creamy white,
approximately 6 mm and found inside the cup of the raspberry fruit.
Raspberry fruitworm
Period of Activity
Adults are active in May and June as buds emerge. They feed on unfolding
leaves and buds on fruiting canes. Their feeding causes elongated long
holes in the leaf, which sometimes destroys bud clusters. Larvae are present
in developing fruit and are most often observed at harvest.
Monitoring
Watch for leaf feeding around developing fruit buds. Adults can be detected
by shaking bud clusters into a dish or tray but quiet observation is the
best way to detect these insects.
Management notes
The application of a prebloom insecticide is recommended for control
of this pest.
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