Suslyk L. Pigmy mangold beetle and working out measures of control of its abundance in the Central Forest-Steppe zone of Ukraine

Objects of researches - pigmy mangold beetle, plants of sugar beet, modern insecticides, new mixes of insecticides. The aim of the research is to study of biological features of pigmy mangold beetle and an establishment of her numerosity dynamics and harmful, improvement of ways of population density reduction of this phytophages in modern conditions of a farm - production 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: field monitoring, laboratory - field, 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 dependence of migratory activity pigmy mangold beetle from a weather conditions, a level of her numerosity on shoots of sugar beet from presence of the food supply caused by losses of root crops during their congregating, and also from duration of a rest in cultivation of culture. Effectiveness of agrotechnical measures on sugar beet against these phytophages is estimated. There was found correlation (r= +0,84) between sugar beet seedlings damage by pigmy mangold beetle and infection degree by pathogens of the black-leg. Effectiveness of insecticides for treatment sugar beet seeds against pigmy mangold beetle was determined. The branch is agriculture, beet production, plant protection