| 摘要 |
A method to limit spreading and harmfulness of the currant bud mite includes directed, killing effect as regards to mite active stages. In spring, in the period of the beginning of migration of the mites, for settling young buds two sprayings of currant bushes with an aqueous solution of the biological preparations Bitoxibacillin c.p. (concentrated powder) 3 kg/ha and Phytoverm 0.2 % e.c. (emulsion concentrate) 1.2 l/ha are carried out with an interval of 8-9 days. In the "green cone" phenophase of currant plantations and prior to flowering two foliar fertilizing of bushes with an aqueous solution of the organic fertilizer Riverm are carried out in an equivalent of 8 and 10 l/ha. In the period of the beginning of mass migration of mites for settling new currant buds with an interval of 7-8 days, two settlings of the predaceous insect common lacewing (Chrysopa carnea Steph.) onto bushes of berry fields are carried out with an interval of 7-8 days in an equivalent of 14-15 individuals per one bush. |
