Product Description Vitax Copper Mixture is a blend of three vital trace elements for use on crops suffering from trace element deficiencies. Copper deficiency can occur in beets, onions and top fruit on peaty, sandy and shallow chalk soils. Manganese deficiency occurs in many crops including potatoes, beans and peas, beets, brassicas, carrots, celery and onions in peat and mineral soils. Zinc deficiency can also occur in fruit grown on sandy soils with high pH and phosphate levels. Copper mixture is used as a spray during periods of active growth, ensuring good leaf coverage.