BIOLOGICAL METHODS OF COMBATING THE COLORADO BEETLE (LEPTINOTARSA DECEMLINEATA SAY) IN THE CONDITIONS OF THE SOUTH OF KYRGYZSTAN

Abstract

The article discusses phytosanitary monitoring of the Colorado potato beetle (Leptinotarsa decemlineata Say), based on taking into account the number, forecasting harmfulness and making decisions on the feasibility and timing of protective measures. It has been established that the number of Colorado potato beetles (Leptinotarsa decemlineata Say) in different zones depends on climatic conditions such as temperature and relative humidity. 22 species of entomophagous Colorado potato beetles were identified in the conditions of southern Kyrgyzstan. Among the entomophages found, the following from the order Coleopteraof the family Carabidae are of great importance  in  limiting  the  number  of  Colorado  potato beetles: Calosomasycophanta L., Calosomaauropunctatum Hbst.,Carabushortensis L., Calathusmelanocephalus L.  and  Coccinellaseptempunctata  family Coccinellidae.  Agrotechnical measures were considered to limit the dynamics of the Colorado potato beetle population.When the Colorado potato beetle population was high, the biological preparation Bitoxibacillini was used and the new biological preparation Actarofit-1.8 was tested against this pest. The results of the research carried out on the seasonal dynamics of the number of the Colorado potato beetle and its entomophages capable of regulating the number and effect of biological products made it possible to develop a comprehensive system for protecting potatoes from the Colorado potato beetle in the conditions of southern Kyrgyzstan.