Adelgids
Adelges abietis, A. cooleyi, A. tsugae
Adelgids are soft-bodied, aphid-like insects that create characteristic galls on spruce and woolly masses on hemlock. These insects have complex life cycles that often involve alternate host species and can cause significant damage to conifers.
Identification & Symptoms
What to Look For
Potential Damage
Lifecycle
Complex life cycles involving multiple generations. Eastern spruce gall adelgid overwinters as partially grown females, matures in spring, and causes gall formation. Cooley spruce gall adelgid alternates between spruce and Douglas fir hosts. Hemlock woolly adelgid produces cottony masses and can have multiple generations per year.
Professional Treatment Approach
Systemic insecticides during crawler stage
Horticultural oils during dormant season
Contact insecticides when crawlers are active
Remove and destroy heavily infested branches
Improve tree vigor through proper care
Recommended Mauget Products
Imisol (Imidacloprid)
Professional-grade treatment specifically effective against adelgids.
View Product DetailsImicide (Imidacloprid)
Professional-grade treatment specifically effective against adelgids.
View Product DetailsDinocide (Dinotefuran)
Professional-grade treatment specifically effective against adelgids.
View Product DetailsAbacide-2 (Abamectin)
Professional-grade treatment specifically effective against adelgids.
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