blackberry bush infestation of worms/caterpillars - Ask Extension
Do I destroy these infected branches? is this a bad bug or ok to leave alone. I really like this bush, it produces blackberries. Thanks
Knowledgebase
blackberry bush infestation of worms/caterpillars #479178
Asked August 18, 2018, 3:03 PM EDT
Do I destroy these infected branches? is this a bad bug or ok to leave alone. I really like this bush, it produces blackberries. Thanks
Montgomery County Maryland
Expert Response
You are seeing fall webworm:
http://extension.umd.edu/hgic/fall-webworm-trees
It has a very wide host range including the Rubus genus that includes blackberry.
It is unsightly but causes little damage. They can be knocked out of the planting with a broom, by a hard water spray, or pruning them out and disposing of them in the trash. jt
http://extension.umd.edu/hgic/fall-webworm-trees
It has a very wide host range including the Rubus genus that includes blackberry.
It is unsightly but causes little damage. They can be knocked out of the planting with a broom, by a hard water spray, or pruning them out and disposing of them in the trash. jt
