Answer: The lettuce is perfectly edible, just be sure to rinse it well before consuming it. Worms can be a problem on leafy vegetables because they hide so well in the crevices. Try hosing them off with plain water, or picking them off with your fingers. Or, you can resort to using the botanical insecticide called Bt. (Bacillus thuringiensis). This is a bacterium that acts as a stomach poison and kills caterpillars. Apply according to label directions.
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