Moshkivska S. Biological features of cow-parsnip of Sosnowskyi and scientific substantiation of an effective system of control in his right-bank forest-steppe of Ukraine

The thesis is devoted to the study of biology and characteristics of perennial weeds dangerous cow-parsnip of Sosnowskyi - Heracleum Sosnowskyi Mandenova, a right-bank forest-steppe of Ukraine and developing ways to successfully control on arable land in agricultural crops and seliteblyh areas. Established phenological phases of cow-parsnip of Sosnowskyi and their duration, made battery plants. Research of influence waterman cow-parsnip of Sosnowskyi juice extracts with different concentration on the process of seed germination of crops. The sensitivity of the aerial parts cow-parsnip of Sosnowskyi to the action of hot steam decreases with the growth phases of plants weeds and herbicide in the phase of 2-3 true leaves, the efficiency of action was of 97.3 to 100 %. By phase 6 leaves stairs sensitivity decreased from 43.2 to 60.7 %. As a result, committed wide search herbicides and their tank tracks the highest level of efficiency action was recorded in areas with herbicides Elyumis 105 OD, MD rate of 2.0 l/ha and 105 Elyumis OD, MD + Roundup, VR The consumption rate of 2.0 + 6.0 l/ha.