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| Coneworms
Spruce
Disease
Oil discoloration of foliage
Rhizosphaera needle cast
Rust
Insect
Coneworms
Cooley spruce gall adelgid
Douglas fir tussock moth
Pine needle scale
Spruce aphid
Spruce bud scale
Spruce budworm
Spruce needleminer
Spruce spider mite
White pine weevil
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Caption: Coneworm on pine
Photo by: K. Grey
Spruce : Coneworms
(revision date: 4/20/2015)
Use Integrated Pest Management (IPM) for successful plant problem management.
Biology
Coneworms attack the green cones of spruce by burrowing into them and feeding. They may also bore into shoot tips, causing tip dieback, or feed on the soft bark of young growth. The coneworms are small and creamy or light brown in color with a darker head. The adult coneworm is a mottled gray moth. Coneworms also attack pines, hemlocks, true firs, and Douglas fir.
Management Options
Non-Chemical Management
Remove and destroy infested cones when possible.
Plant non-susceptible conifers where coneworms are a serious pest.
Natural enemies of the coneworm are likely.
Select non-chemical management options as your first choice!
Chemical Management
IMPORTANT:
Visit Home and Garden Fact Sheets for more information on using pesticides
None recommended
Images
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Caption: Coneworm on pine
Photo by: K. Grey
Caption: Coneworm damage
Photo by: L.J. du Toit