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 organic chalk soils. Copper mixture can be applied as a spray ensuring good leaf coverage. For best results, apply during early morning or evening. Do not apply in extremes of temperatures, very bright sunlight or in drought conditions. Copper mixture should be pre-mixed with a small quantity of water in a plastic bucket or other suitable container. When thoroughly mixed, make up to the final volume with more water, stirring continuously. One packet is sufficient to make 9 litres of spray. For small areas use 30g product in 1.5 litres of water.