Wood stored under excessively moist conditions may become slimy and often develops fungal growth on its surfaces. If the scion wood becomes infected with a virus, check for necrosis in the area just below the scion. Incompatibility of the scion and stock may occur in some cases. Especially on nonstaked scions, dieback may result from wind damage or mechanical injury that loosened the graft union. Consider the water status of the soil.
Excessive irrigation causes more problems than lack of water.
Mineral deficiencies may be corrected by the application of a foliar nutrient spray. Store all chemicals in their original labeled containers in a locked cabinet or shed, away from foods or feeds, and out of the reach of children, unauthorized persons, pets, and livestock. Confine chemicals to the property being treated. Mix and apply only the amount of pesticide you will need to complete the application. Spray all the material according to label directions.