PHYTOSANITARY STATE OF THE AGROECOSYSTEM OF WINTER WHEAT DEPENDING ON THE PREDECESSORS OF PERENNIAL LEGUMINOUS GRASSES

The article deals with the issues of increasing resistance winter wheat crops to effects most common diseases, weeds and pests for growing after predecessors six types perennial leguminous grasses without using pesticides. damage caused leaf surface by septoria powdery mildew diseases has been shown. number cockchafer larvae analysed. Determining predominant in context level weed infestation researched. yield depending on its assessed correlation-regression dependences between it spread pests, their have identified. A close correlation proved. It shown that highest is observed meadow clover. slightest found predecessor After white sweet clover wheat’s disease was minimal. During sowing season wheat, no were arable layer soil alfalfa, fodder galega. smallest during spring growth Meadow provides productivity case cultivation additional use mineral fertilisers – 5,8 t/ha. minimal plants Erysiphe graminis DC 6%, fungicides. from Septoria tritici Mg fungicides 5%. Melolontha melolontha L. disclosed galega predecessors. period 12 pcs/m2.