Originally Posted by Shadetree930
That looks like a Dwarf Alberta Spruce with a Spruce Spider Mite infestation/damage.
Seems early for Michigan or am I looking at damage from last year.?
Anyhow ... treatable with chemicals from any garden shop. Look for something that targets Spider Mites.
Spruce Spider Mite: Apply a horticultural spray oil as a dormant treatment. Motile stages of mites can be managed with formulations of abamectin, bifenazate, bifenthrin (Bifenthrin Pro Multi-Insecticide, Onyx Insecticide, Talstar F, Talstar Lawn & Tree Flowable, Talstar GC Flowable, Talstar Nursery Flowable, and TalstarOne Multi-Insecticide only), chlorpyrifos, deltamethrin, dicofol, dimethoate, disulfoton, etoxazole, fenbutatin-oxide, fenpyroximate, hexythiazox, horticultural oil, hydrophobic extract of neem oil, insecticidal soap, lambda-cyhalothrin (Battle GC, Demand CS, Scimitar CS, Scimitar GC, and Scimitar WP only), malathion, oxydemeton-methyl, spinosad, spiromesifen, and tau-fluvalinate.
Management Hints: Select and apply a dormant horticultural spray oil before new growth starts and before buds separate into clusters. A dormant horticultural spray oil application should be made while temperatures remain above freezing. Dimethoate is not labeled for application on spruce. Horticultural spray oil and insecticidal soap remove the glaucous bloom (blue color) from spruces such as Colorado blue spruce and Koster spruce.
Note: Apply a registered formulation to kill mites hatching from eggs (miticide). This will occur from May through June. Additional generations may need to be managed in September through early October. If mite populations persist, repeat applications may be necessary. Monitor mite populations prior to applying a control measure. Heavy rainfalls may reduce mite populations for a short time.
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