Abstract

Goal. To clarify the species composition of carabids in spring wheat agrocenosis, to determine the dominant species, to compare the number of ground beetles on application of mineral fertilizers and organic nutrients.
 Methods. Field method — accounting of insects on the sowing of spring wheat in accordance with generally accepted methods. Laboratory method — determination of the species composition of ground beetles. The study was conducted in 2017—2019 on the basis of National Research Center «Institute of Agriculture of NAAS of Ukraine», department of plant protection against pests and diseases (Chabany, Kyiv-Sviatoshynskyi district, Kyiv region).
 Results. The species composition of carabid beetles on the sowings of spring wheat under modern conditions has been specified. 41 species of ground beetles from 15 genera were found. On application of mineral fertilizers, the dominant species were Bembidion properans Stephens, 1828, Harpalus affinis Schrank, 1781, Harpalus rufipes De Geer, 1774, Poecilus cupreus Linnaeus, 1758, Harpalus distinguendus Duftschmid, 1812. H. affinis Schr., H. rufipes Deg., H. distinguendus Duft., P. cupreus L., Calathus fuscipes Goeze, 1777, Harpalus smaragdinus Duftschmid, 1812 were dominant species on application of organic nutrients. In both variants, Broscus cephalotes Linnaeus, 1758, Poecilus punctulatus Schaller, 1783, Poecilus versicolor Sturm, 1824, Microlestes minutulus Goeze, 1777 were subdominant species. The ratio of trophic groups of carabid beetles in the agrocenosis of spring wheat has been established. The seasonal dynamics of the number of ground beetles has been reflected.
 Conclusions. In the first variant (mineral fretilizers) 40 species of carabids were registered, in the second (organic nutrients) — 35. Among all identified species (according to trophic specialization) the number of phytophages and zoophages was similar — 21 and 19, but in the experimental variants their ratio differed. The average number of ground beetles during 2017—2019 was: variant 1 — 30.8 specimens per trap, variant 2 — 28.1 specimens per trap.

Highlights

  • Íàóêîâi äîñëiäæåííÿ wheat grain from di erent soil and climatic zones were analyzed

  • Spores of bunt pathogens were found in grain samples from Ternopil, Kyiv, Chernihiv, Lviv, Vinnytsia regions. e following species have been identi ed: Tilletia caries, T. controversa, T. laevis

  • T. controversa was found on grain in 2017—2019 and prevailed among other species

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Summary

Introduction

Íàóêîâi äîñëiäæåííÿ wheat grain from di erent soil and climatic zones were analyzed. Seed contamination was determined by washing the grains and centrifuging the spore suspension, followed by counting their number in the Goryaev chamber. Íà âàð3àíò[3] ïøåíèö[3], äå âíîñèëè ì3íåðàëüí[3] äîáðèâà, äîì3íàíòí[3] âèäè – Bembidion properans Stephens, 1828, Harpalus affinis Schrank, 1781, Harpalus rufipes De Geer, 1774, Poecilus cupreus Linnaeus, 1758, Harpalus distinguendus Duftschmid, 1812. Íà âàð3àíò[3] ïøåíèö[3] ç îðãàí3÷íèì æèâëåííÿì äîì3íàíòí[3] âèäè — H. affinis Schr., H. rufipes Deg., H. distinguendus Duft., P.

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