The adult black vine weevil notches the edges of the leaves in June and July. The larvae feed on the fibrous roots and cause stunting and death of the plants. A smaller root weevil than the black vine weevil and normally not as destructive. Healthy plants can withstand the attack of one to two larvae. Spittlebugs also attack strawberry plants.
Damage is greater to younger plants.
The nymphs live in a mass of spittle and suck plant juices. They feed on the leaves and stems. Severely attacked buds appear burned. The larvae overwinter. Moths appear in early spring with a second generation later in the summer.