Species composition of cross-flowered flakes and hidden ambulators in winter rope crops in the Left Bank Forest Steppe of Ukraine

D. Rekiianov; O. Shyta; M. Bashchenko; R. Tsurkan

doi:10.36495/PHSS.2024.70.257-266

D. Rekiianov Institute of Plant Protection of the NAAS, 33, Vasylkivska str., Kyiv, 03022, Ukraine https://orcid.org/0009-0005-4363-3435
O. Shyta Institute of Plant Protection of the NAAS, 33, Vasylkivska str., Kyiv, 03022, Ukraine https://orcid.org/0000-0002-0795-5120
M. Bashchenko Institute of Plant Protection of the NAAS, 33, Vasylkivska str., Kyiv, 03022, Ukraine https://orcid.org/0000-0001-9844-3608
R. Tsurkan Institute of Plant Protection of the NAAS, 33, Vasylkivska str., Kyiv, 03022, Ukraine https://orcid.org/0009-0004-5986-9365

DOI: https://doi.org/10.36495/PHSS.2024.70.257-266

Keywords: winter rape, phytophages, cruciferous fleas, hidden lovers

Abstract

Goal. Clarification of the species composition of cruciferous fleas and cryptid beetles in the rape agrocenosis of the winter Left Bank Forest Steppe of Ukraine.

Methods. Field — monitoring of phytophages using a Petlyuk box and yellow trap cups was carried out at the State Enterprise «Experimental Farm «Takhtaulovo» of the Institute of Plant Protection of the National Academy of Sciences of the Poltava District of the Poltava Region during 2023—2024; laboratory — identification of pests in the pesticide application technology laboratory of the Scientific Research Institute of the National Academy of Sciences.

Results. During surveys during the recovery period of winter rapeseed vegetation in 2023—2024, it was established that crops of the crop were inhabited by cruciferous fleas and hidden caterpillars. During this period, culture plants were in the stemming phase. The species composition of cruciferous fleas in the agrocenosis of the culture was formed from the following species: black (Phyllotreta atra F.), blue (Ph. nigripes F.), wavy (Ph. undulata Kutsch.), light-footed (Ph. nemorum L.) and notched (Ph. striolata F.). In the agrocenosis of winter rape during the years of research, the black flea dominated, the share of which reached 70.8% of the total amount. At the same time, blue and wavy plates accounted for 26.9% of the total collection. Also, other types of these phytophages were found in crops, but their number was quite low in the spring period. During the period of recovery of winter rape vegetation, it was found that the agrocenosis of winter rape was dominated by cruciferous sedum and large rape sedum, the share of which was 80.5% of the total number. Also, the activity of the cabbage stem and rape seed borers was noted on the crops, and their number was much lower than the total and reached only 11.6% and 7.9%, respectively.

Conclusions. It was established that the dominant species on winter rapeseed crops during the years of research among the complex of cruciferous scales of the Phyllotreta family were black (Phyllotreta atra F.) and blue (Ph. nigripes F.) — 97.7%, and among the complex of cryptoctopus of the Ceutorhynchus family were cruciferous — C. picitarsis Gyll. and large rape — C. napi Gyll., the share of which reached 80.5% of the total collection.

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