METHOD FOR PREVENTING FROM SPREADING AND DEVELOPMENT OF BLACK CURRANT POWDERY MILDEW SPHAEROTHECA MORS-UVAE

摘要

A method for preventing from spreading and development of black currant powdery mildew Sphaerotheca mors-uvae comprises the use of biological preparations. In spring-summer period, at appearance of the first symptoms of the disease on currant bushes, one technique of spraying the bushes with an aqueous solution of the biological fungicide Phytolavin-300 is carried out in an equivalent of 0.9 kg/ha. In addition, in 9-10 days spraying of the bushes is carried out with an aqueous solution of a mixture of the organic fertilizer Riverm, in an equivalent of 6 l/ha, and the biological fungicide Alirin-B, in an equivalent of 0.03 kg/ha. In addition, in 9-10 day to techniques of spraying currant bushes with an aqueous solution of Alirin-B, in an equivalent of 0.03 kg/ha.