|My pine tree is covered with bagworms. How can I get rid of them? The tree is about 15-20 ft high.|
You can pick or snip them off but this is tedious. Those worms are either still feeding or have stopped and begun to turn into moths. If they are feeding apply B.t. sprays every few days for a couple of weeks to shut them down. If they are now pupating you can't spray them and get results. Either ignore them since they are not feeding on your plants anymore or if you are not squeemish smash the bags with your finger and thumb to crush the worms inside.
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