Bioagents of the Chrysopidae (Neuroptera) feeding on Myzus persicae Sulzer (Hemiptera; Aphididae) in a crop of oriental tobacco

Agricultural Science and Technology Pub Date : 2022-09-01 DOI:10.15547/ast.2022.03.041

Z. Radev

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Abstract

Abstract. This study was conducted with the aim to establish the bioagents of the Chrysopidae (Neuroptera) family feeding on green peach aphid Myzus persicae Sulzer (Hemiptera; Aphididae) in an oriental tobacco crop. The results showed low multiplication density of the aphidophagous species throughout the two-year course of the study. Four representatives of the Chrysopidae were established and the species with the highest densities were seven-spotted lacewing Chrysopa septempunctata Wesmael and beautiful lacewing Chrysopa formosa Brauer – 55.6% and 27.8%, respectively. Оrdinary lacewing Chrysopa carnea Stephens and green lacewing Chrysopa prasina Burmeister related to the control of the green peach aphid represented correspondingly 11.1% and 5.5% of the total number of lacewings, but single representatives were found and hence it could be assumed that they did not play a significant role in the limitation of M. persicae. Later emergence of the lacewings in the tobacco crop was observed, in the period 20th – 30th June of 2021 and 2022, which is a period of relatively high multiplication rate of the green peach aphid.

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蝶科(神经翅目)以桃蚜(半翅目)为食的生物制剂蚜虫科)在东方烟草作物中的一种

摘要本研究旨在建立以东方烟草作物中的桃蚜Myzus persicae Sulzer（半翅目；蚜科）为食的金蝇科生物制剂。结果表明，在为期两年的研究过程中，食蚜物种的繁殖密度较低。建立了4个金花虫科的代表，密度最高的物种是7个斑点草食金花虫和美丽草食金花虫，分别占55.6%和27.8%。О与绿桃蚜防治相关的普通草菇和绿草菇分别占草菇总数的11.1%和5.5%，但发现了单一的代表，因此可以认为它们在桃蚜防治中没有发挥显著作用。在2021年6月20日至30日和2022年6月30日期间，烟草作物中观察到草食蚜的出现，这是一个绿桃蚜繁殖率相对较高的时期。

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Agricultural Science and Technology

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11 weeks