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From: nina holt
guthrie, OK
I have small black worms in a web. They are on all my pine trees.

Extension Message
From: Greg Stack
Extension Horticulturist
Extension Web Development

There are several web forming caterpillars that can affect woody plants. One method to control if practical is to physically prune out the webs with the caterpillars inside. You could also use a Bacillus thuringiensis 'Kurstake' spray to help contol the caterpillars that are feeding on the needles.

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