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CUES: Center for Urban Ecology and Sustainability

Diagnosis Case: Pine

Part of determining which insect causes the damage is knowing when they are most abundant during the season.

Type of Insect No. of Generations Insect Stage Time they are present
European Pine Sawfly 1 Larvae mid-April through May
AdultsEmerge through the fall
Introduced Pine Sawfly 2 Larvae 1st generation = late May - early July
2nd generation = late July through late Sept.
European Pine Shoot Moth 1 LarvaeJune and July
Adultslate May and early June
Red Pine Shoot Moth 1 Larvaelate summer
Adultsmid-June through September
Eastern Pine Shoot Borer 1 LarvaeJune


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Last modified on March 06, 2013