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pine tree bug #263680

Asked July 21, 2015, 12:01 PM EDT

I live in Peyton co and have these worms on pine trees. Can you tell me how to deal with please?

County Colorado

Expert Response

Thank you for your question and picture.

I cannot zoom in, how long are they?

An Ask Extension Expert Replied July 30, 2015, 6:54 PM EDT

About one to two inchs

The Question Asker Replied July 30, 2015, 7:01 PM EDT

Pine sawfly (mature larvae)

Here is a link from Colorado State University. Please read it and let me know if you have any additional questions.

http://csfs.colostate.edu/media/sites/22/2014/02/Pine_Sawfly_Report_4AUG2014.pdf

An Ask Extension Expert Replied July 30, 2015, 7:27 PM EDT