Li Ren, Cheng Shenhang, Chen Zhibin, Guo Tianfeng, Liang Pingzhuo, Zhen Congai, Wang Jinghui, Zhang Lei, Liang Pei, Gao Xiwu
Department of Entomology, China Agricultural University, Beijng 100193, China.
College of Agriculture & Food Engineering, Baise University, Baise 533000, China.
Insects. 2022 Nov 8;13(11):1033. doi: 10.3390/insects13111033.
The is an important pest that can damage cotton plants and can cause a huge economic loss worldwide. Chemical control is a main method to manage this pest, but the cotton aphid resistance to insecticides has become a severe problem in the management of the cotton aphid. It is important to introduce a novel insecticide for rotational application with other insecticides. Broflanilide, as a meta-diamide insecticide with a special mode of action, showed high efficiency against lepidopterous larvae. However, we found that broflanilide possessed high insecticidal activity against the sap-sucking pest . The susceptibility of to broflanilide from 20 field populations in main cotton planting areas of China in 2021 was determined by the leaf-dipping method. LC values of broflanilide to ranged from 0.20 μg mL to 1.48 μg mL. The susceptible baseline of to broflanilide was established with the LC value of 0.41 μg mL and might be used to calculate the resistance ratio (RR) of cotton aphid population in broflanilide resistance monitoring. The RR value of field populations in China was from 0.49 to 3.61 in 2021. It suggested that the broflanilide may be a potential agent in the resistance management of to insecticides. These results are significantly useful for the rational chemical control of cotton aphids.
（原文中存在一些指代不明的情况，以下是尽量连贯的译文）棉蚜是一种重要害虫，会损害棉花植株，在全球范围内可造成巨大经济损失。化学防治是管理这种害虫的主要方法，但棉蚜对杀虫剂产生抗性已成为棉蚜治理中的一个严重问题。引入一种新型杀虫剂与其他杀虫剂轮换使用很重要。溴氰虫酰胺作为一种具有特殊作用方式的间二酰胺类杀虫剂，对鳞翅目幼虫显示出高效性。然而，我们发现溴氰虫酰胺对这种刺吸式害虫具有高杀虫活性。通过浸叶法测定了2021年中国主要棉花种植区20个田间种群的棉蚜对溴氰虫酰胺的敏感性。溴氰虫酰胺对棉蚜的LC值范围为0.20μg/mL至1.48μg/mL。以0.41μg/mL的LC值建立了棉蚜对溴氰虫酰胺的敏感基线，可用于计算溴氰虫酰胺抗性监测中棉蚜种群的抗性比率（RR）。2021年中国田间种群的RR值为0.49至3.61。这表明溴氰虫酰胺可能是棉蚜抗杀虫剂治理中的一种潜在药剂。这些结果对棉蚜的合理化学防治具有重要意义。
