What's wrong with my plant? : Garden : University of Minnesota Extension

Strawberries > Fruit > Deformed fruit

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Feeding results in a berry with a deformed, seedy tip (cat-faced berry)
Adults are oval shaped, approximately 1/4 inch long, brownish in color with streaked yellow and black lines (tarnished appearance), and have a white V-shaped marking on its back
Nymphs may be confused with aphids, however, they move fast when disturbed (aphids do not)
Adults are present early in the season (April-May), and again in high numbers in late June-July; nymphs present in May
More prevalent in weedy strawberry patches
Remove weeds as they can provide habitat for adults to feed and overwinter
Keep lawn mowed so that it does not become a habitat area
If your patch is small enough, you can physically remove insects by tapping the flowers and dislodging them into a pan of soapy water
More information on tarnished plant bug

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Berry is puckered or misshapen on any side of the berry, usually with a suture mark between the normal and deformed sides of the berry
The first and largest berry is often deformed, later berries are not affected
Deformed and healthy fruit appear in the same cluster
Center of the flower is black