IMPACT OF ABIOTIC FACTORS FOR ENTOMOCENOSIS SPRING WHEAT CROPS (USING PAVLODAR REGION AS AN EXAMPLE)

Ualiyeva R. M., Kanibolotskaya Yu. M., Listkov V. Yu., Kanushina Yu. A., Abramova E. A.

A comparative analysis of the influence of abiotic factors on the species composition and the number of pests in spring wheat agrocenoses of the main grain growing areas of Pavlodar region was carried out, taking into account the agricultural technological techniques used. Phytosanitary monitoring was carried out in different parts of the region during the growing season of 2022 in typical agricultural organizations, according to different predecessors (pure steam, spring wheat, oilseed flax) on the example of varieties of foreign spring wheat (Likomero, Trizo, Uralosibirskaya, Omsk 35) and Kazakhstan selection (Kazakhstan 15). The main insect pest species identified during the study period are: Haplothrips tritici, Phyllotreta vittula, Chaetonema aridula, Trigonotylus ruficornis, Schizaphis graphinum, Psammotettix striatus L.; their distribution as a whole in the areas under consideration and in different predecessors is uneven. All spring wheat fields studied were dominated by wheat trips (Haplothris tritici). The formation of entomocenosis largely determined the climatic conditions of the growing season under consideration. Agricultural techniques used also had a significant impact on the species composition and number of pests. The findings make a significant contribution to the study of insect complexes found in wheat crops and provide comparative material for similar studies in other regions, including Russia.

Keywords:abiotic factors, insect pests, entomocenosis formation, plant stability, cultivation techniques, crop loss, phytosanitary situation in agrobiocenoses, protective measures