Karen from Muskego, Wi writes
My blue spruces have Rhizosphaera needlecast. How much of the Spectro 90 do I use for a gallon water? My crabapple trees have scab. How much of Spectro 90 do I use per gallon of water?
You would use 1-2 tablespoons of the
Answer last updated on: 03/12/2018