My potted dill has been infested by some kind of small worm. Other herbs in the same patio pot are not affected. What are these pests, and what can I do to eliminate them?
Dill Weed Worms
Certified GKH Gardening Expert
It may be an Eastern Black Swallowtail: http://www.fcps.edu/islandcreekes/ecology/eastern_black_swallowtail.htm
Regardless, this article will help you with caterpillars in your garden: