Variety role in the formation of entomocomplexes in spring and winter wheat agrocenoses

Russian. Определена роль сортов пшеницы яровой и озимой отечественной селекции разных по скороспелости на численность и вредоносность проволочников – личинок жуков щелкунов, шведских мух, злаковых тлей и пьявиц. Выявлено, что среднеспелые сорта пшеницы в меньшей степени повреждались фитофагами по сравнению с позднеспелыми. Представлены данные по вредоносности и экономическим порогам численности шведских мух, злаковых тлей и пьявиц на сортах пшеницы яровой – Рассвет, Дарья и Тома, озимой – Легенда, Сюiта и Ядвiся.

English. In a course of the research there was studied variety role in the formation of entomo complexes in spring and winter wheat (Triticum) agrocenoses. The research was realized in the conditions of the Republic of Belarus Studies in 2013-2014 in field trials in the experimental field of RUE ‘Institute of Plant Protection,’ RUE ‘Science-practical center of NAS of Belarus on agriculture’, CSEA ‘Experimental Base’ Natalevsk ‘(Cherven District), CSEA ‘Molodechno Seed-Testing station’, GSKHU ‘Lepel Seed-Testing station’ and Shchuchyn strain-testing stations for the following phases of development of plants: germination, booting, earing and ripening grain. Studies were carried out according to the Guidelines on estimation of stability of grain crops to pests. As a result of realized research it was revealed the role of spring and winter wheat local selection different by maturation varieties on click beetles-wireworms, Frit flies, cereal aphids and cereal leaf beetles. It was revealed that semi-maturing wheat varieties were damaged by phytophages in lesser degree in comparison with late-maturing ones. The data on harmfulness and economic thresholds of Frit flies, cereal aphids and cereal leaf beetles number on spring wheat varieties – Rassvet, Dariya and Toma, on winter wheat varieties – Legend, suite and Yadvisya were presented.