The parselyworm is a 2-inch caterpkllar that is green with a yellow-dotted black band across each body segment. It gives off an odor and projects orange horns when upset. The adult is the black swallow-tail butterfly. It lays white eggs on leaves. The parsely worm overwinters as a pupa or adult. Several generations occur in a year. Adults and worms are both beautiful creatures, but the damage makes this a not so friendly pest.
Symptoms include chewed leaves and bare stems.
Vulnerable plants are all members of the parsley family such as parsley, carrots, parsnips, celery, and dill.
Handpick worms or use Bt by dusting all parts of the leaves, or adding it in a liquid form. Reapply every 10-14 days. Other botanical poisons include rotenone. Animal predators include birds, snakes, and toads. Predators and parasites include assassin bugs, lacewing larvae, parasitic wasps, and predatory flies.
Sorry, I could not find any pictures of the larvae, but I did find a picture of the butterfly.
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