Answer: Sounds to me like fruit worms. These vari-colored green, brown or pink worms eat holes in green or ripe tomato fruit. Damage is worse when tomatoes are planted near sweet corn. (The corn earworm is the same insect.) This insect can be controlled with an insecticide such as Sevin. To control tomato fruit worm, apply insecticides regularly every seven days beginning at fruit set. Cover the entire plant with a dust or spray. The tomato fruit worm control program also controls flea beetles, blister beetles and horn worms.
Best wishes with your tomatoes.
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