Giant swallowtail caterpillars are all over one of my container Washington navel trees… how do I kill these disgusting creatures?
If you spray with dipel, they stop feeding and starve to death, i supose dilute neem oil would work as well, but not sure, dipel works geat on caterpillers
I purchased a bottle of SHULTZ Fruit & Vegetable Insect Killer - killed them on contact! Those things are disgusting! Just when you think everything is doing fine along comes this horrible pest. Next time I see one of those butterflies near my trees, it's dead.
I keep most of them off by picking the eggs off fresh growth. If you want another safe way to kill them --use soapy water.