Spray the fourth foliar zinc application on mature trees. Spray for pecan nut casebearer only if needed, according to sampling and crop size. When spraying, cover entire orchard at peak insecticide effectiveness. Spray second herbicide strip down tree row when weeds are 10 inches tall. Continue grafting as long as bark slips.
Frequent rains require fungicide sprays for pecan scab prevention on susceptible varieties.
Fertilize mature bearing trees with 50 pounds N per acre only if a good or heavy crop is set. Fertilize the last time for young trees to insure stoppage of growth in September and no freeze damage in October or December. Frequent rains require fungicide sprays for scab prevention. July Count terminals with clusters for crop estimate for nut thinning and continued fertilizer. Fertilize with 25 pounds N per acre on all mature trees with a good crop or more.