10/02/2025
Caterpillars on dill are most likely the larvae of the Black Swallowtail butterfly. These caterpillars are beneficial insects that transform into beautiful butterflies. You can encourage this natural cycle by leaving the caterpillars alone, providing extra host plants like dill, parsley, fennel, or carrots, or by using a mesh cage to protect your herbs while allowing the caterpillars to mature and move on.
