What is it?

An insect that bores into tissues in pine trees and girdles branches

What are the signs?

· Wilting and browning of new growth

· Pitch from branch unions

· Damage is evident near the top of the tree usually

Life Cycle

· Spends the winter as a caterpillar underneath the bark

· In spring the caterpillar will bore into the tree and feed for a few months

· Emerges as an adult moth in August where it will lay eggs


· Growth Regulator treatment to slow tree growth

· Low nitrogen fertilizer for increased tree immunity and health

· 2 applications of insecticide per year

· 1 application in April and 1 application in August

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Zimmerman Pine Moth

Milwaukee:262-783-6887 Saint Paul:651-731-5296