Answer: The worms may be tomato horm worms, larvae of a large moth. Just one of these can eat a lot of tomato leaves in a hurry, but they are fairly easy to find and remove by hand. Or, you can spray with Bt (Bacillus thuringiensis). The Bt has to be ingested before it affects the worm, so it is a slower control than handpicking. Bt is a botanical and is safe to use around people, pets and beneficial insects.
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