Assessment of Under-Ground Pests’ Density in Potatoes and Legumes Grow After Winter Wheat

Abstract

The results of held researchers in determining percentage of underground pests spread, winter phases, biological indexes in the fields of rotation croppotatoand win wheat were discussed in the article. According to that, soil layer of potato and winter wheat fields which were taken for experiments should be dug to 5, 10, 15, 20, 25 sm and all kinds of underground pests, fall armywarm (Agrotis segitum Den. Et Shiff), may bugs (Melolontha melolontha), click beetles (Elateridae) larvae will bedetermined. Every found soil pests in the fields of the potatoes and win wheat are compared, they are analyzed on the base of common methods. Practical conclusions and recommendations were given based on results.