
Spring: Complete fertilizer to encourage shoot and stem growth; improve size and color of leaves and flowers; assist in plant recover from stress caused by winter conditions involving low temperatures, winds, early or late frost.
Early Summer: Insect and disease control such as aphids, scale, saw flies, tent caterpillars, apple scab, leaf spot, and fire blight.
Summer: Insect and disease control such as bag worms, Japanese beetles, mites, fall webworms, leaf spot, needle blight, and powdery mildew.
Fall: Complete fertilizer to encourage root grow