The dynamics of the development of harmful insects on the mother planting of basic grape plants in the Rostov region

The study results on prevalence of the main harmful insects mother planting basic grape plants Rostov region: rose leafhopper, buffalo treehopper, tree cricket, tobacco and thrips, which are polyphagous phytophages, presented. As a result negative impact organisms plant normal development is disrupted. spread increase in insect harmfulness region facilitated by an average annual temperature to 9.5-11.6 °C last 10-15 years, lower limit for their survival. A close direct relationship was revealed between leafhopper thrip harmfulness: r=0.72-0.89 unobvious dependence cricket thermal conditions (r=0.59). phytosanitary control system made it possible restrain organism development, with not exceeding 1.3 points thrips 2 other further reproduction practically healthy material while maintaining status plants.