THERMOTHERAPY IN THE PRODUCTION SYSTEM OF IMPROVED GRAPE PLANTING MATERIAL
Vineyards are damaged by numerous pests, viral, bacterial and fungal diseases. One way to fight is the use of chemicals. However, the use of fungicides, insecticides and similar artificial preparations worsens the ecological situation. In this regard, experimental studies were carried out to improve the planting material of grapes from the infectious disease Botrytis cinerea by thermotherapy without the use of chemicals. As a result of the experiments, it can be concluded that the use of temperature regimes (thermotherapy) and the simultaneous saturation of inoculations with macro- and microelements (the drug of complex action Albit) can be successfully used to combat Botrytis cinerea. The combined use of 0,2% Albit and thermotherapy at 45 - 50 <sup>⸰</sup>С for a 10-minute exposure proved to be effective in obtaining healthy grape plants. Such an exposure of time and concentration of the complex preparation made it possible to free grape seedlings from Botrytis cinerea (the yield of affected seedlings was 0,2%). Thus, the disposal of grape grafts from Botrytis cinerea under conditions of stressful elevated temperatures and the simultaneous saturation of plants with macro- and microelements is relevant.