Dovgelya A. Larvas of click beetles and the control of their numerosity over crops of sugar beet in the Central Forest Steppe Zone of Ukraine

Objects of the investigation are: wireworms, plants of sugar beets, modern insecticides, new mixture of insecticides. The aim of the research is to improve of ecologically oriented control of density of click beetles larvas in the Central Forest - Steppe zone of Ukraine with the count of changes in climatic conditions of region and technology of culture cultivation. Used methods are: monitoring, laboratory and vegetative experiments, field experiments, statistical method. Scientific novelty is that it is first research under modern conditions in the Central Forest - Steppe zone of Ukraine of the features of biology, ethology, and also a specific composition of Elateridae in agrobiocenosis of sugar beet and winter wheat. Monitoring of click beetles larvas’ migration was carried out and regularity of their vertical migration in soil of sugar beet fields during spring-autumn season were investigated. Effectiveness of agrotechnical measures on sugar beet against these phytophages is estimated. There was found correlation between sugar beet seedlings damage by wireworms and infection degree by pathogens of the black-leg. Effectiveness and prolongivity of toxic action of insecticides for treatment sugar beet seeds and for the fine droplet application into soil against wireworms were determined. The branch is agriculture, beet production, plant protection