Blue spruce growing at a golf course in Northeastern Ohio were used to evaluate efficacy of selected pesticides against spruce spider mites. A 'Skibee' hydraulic sprayer at 100 psi with a narrow nozzle orifice was used to apply treatments to run-off. Three, single-tree replicates were selected...
Blue spruce growing at a golf course in Northeastern Ohio were used to evaluate efficacy of selected pesticides against spruce spider mites. A 'Skibee' hydraulic sprayer at 100 psi with a narrow nozzle orifice was used to apply treatments to run-off. Three, single-tree replicates were selected...