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Blue Spruce & Varmins

I have several Blue Spruces who are at least 20 to 30 feet tall. Every year at about this time, they get a parasite, that looks like soft cones, brown which hang down from their small branches. If you know what these things are, could you advise me, on how to rid the trees from these parasites. Thank you, Jose


Hi Jose, What you have are bag worms. First you will have to pull them off, put in a paper sack and take them away form the area to burn.

Each season you will have to spray the trees and the ground under and around them with malathion. At lease two times a season.

You will eventually reduce the population but I’m afraid they are here to stay.

Steve Jones

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