| 双丙环虫酯对多异瓢虫生命参数、捕食功能与飞行能力的影响 |
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| 引用本文：南杰,刘冰,陆宴辉.双丙环虫酯对多异瓢虫生命参数、捕食功能与飞行能力的影响.植物保护学报,2022,49(6):1799-1808 |
| DOI：10.13802/j.cnki.zwbhxb.2022.2022053 |
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| 中文摘要:为明确新型生物源杀虫剂双丙环虫酯对新疆维吾尔自治区（简称新疆）农田优势捕食性天敌多异瓢虫Hippodamia variegata的安全性，以前期室内毒力测定的双丙环虫酯对棉蚜Aphis gossypii的LC50、LC20和LC10为药剂处理浓度，以清水为对照，于室内测定不同浓度双丙环虫酯处理后多异瓢虫成虫繁殖力、子代生长发育、捕食功能和飞行能力。结果表明，3个浓度双丙环虫酯处理后多异瓢虫成虫繁殖力及其卵孵化率与清水（对照）均无显著差异；LC50处理后多异瓢虫F1代1龄幼虫存活率显著低于LC10、LC20处理和清水（对照），多异瓢虫2~4龄幼虫的存活率在不同处理之间均无显著差异。多异瓢虫F1代1龄幼虫发育历期随药剂处理浓度增大而显著延长；药剂处理对幼虫发育历期的影响随龄期逐渐减弱，至4龄幼虫时影响均不显著，但幼虫总发育历期及卵-蛹总发育历期均随药剂处理浓度增大而显著延长。各药剂处理后多异瓢虫F1代蛹发育历期、蛹重和成虫羽化率均与清水（对照）无显著差异。双丙环虫酯处理后多异瓢虫对棉蚜的捕食功能反应均符合Holling Ⅱ模型，日捕食量均随棉蚜密度增加而增加，3龄幼虫捕食能力低于雌、雄成虫。当棉蚜密度为50头/皿时，清水（对照）、LC20和LC50处理后多异瓢虫3龄幼虫的日捕食量均显著高于LC10处理，其他棉蚜密度下不同处理后3龄幼虫日捕食量之间差异不显著；相同棉蚜密度下，不同处理后多异瓢虫2日龄雌成虫日捕食量之间均无显著差异；当棉蚜密度为100头/皿时，清水（对照）、LC10和LC50处理后雄成虫日捕食量显著高于LC20处理；其他棉蚜密度下，不同处理后雄成虫日捕食量之间均无显著差异。不同浓度双丙环虫酯处理后多异瓢虫2日龄雌、雄成虫在室内飞行磨上的飞行速度、飞行时间及飞行距离之间均无显著差异；相同处理后雌、雄成虫的飞行距离之间差异也不显著。与当前生产上防治蚜虫的当家杀虫剂相比，双丙环虫酯对多异瓢虫的生态安全性较高，可用于新疆农作物蚜虫类害虫的绿色防控。 |
| 中文关键词:多异瓢虫 双丙环虫酯 杀虫剂 生长发育 捕食功能 飞行能力 |
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| Effects of afidopyropen on the life parameters, predatory function and flight ability of variegated ladybird Hippodamia variegata |
| Author Name | Affiliation | E-mail | | Nan Jie | College of Agronomy, Xinjiang Agricultural University, Urumqi 830052, Xinjiang Uygur Autonomous Region, China
State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China | | | Liu Bing | State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China | | | Lu Yanhui | State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China | luyanhui@caas.cn |
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| Abstract:Afidopyropen is a new type of biogenic insecticide; however, its biosafety on variegated ladybird Hippodamia variegata, the dominant predatory natural enemy in Xinjiang Uygur Autonomous Region, is still poorly understood. In this study, based on the previous toxicity test in the laboratory using semi-lethal concentration (LC50=5.21 mg (a. i.)/L) and sublethal concentration (LC20=1.20 mg (a. i.)/L, LC 10=0.56 mg (a.i.)/L) of afidopyropen against Aphis gossypii as treatments and using distilled water as control, the effects of afidopyropen on the parental female fecundity, growth and development of offspring, predatory function and flight ability of H. variegata were evaluated in the laboratory. The results showed that no significant effects on the fecundity and hatching rate of offspring eggs were found among different treatments. Although the survival rate of the 1st instar larvae of F1 generation under LC 50 treatment was significantly lower than that under LC10, LC20treatments and the control, there was no significant difference in the survival rate of the 2nd, 3rd and 4th instar larvae among different treatments. Insecticide treatment significantly prolonged the developmental duration of the 1st instar larvae of F 1 generation, although this effect declined in the 2nd, 3rd instar larvae and there was no significant difference in the 4th instar larvae. Higher insecticide concentration caused longer duration of the whole larval period and the total duration from egg to pupa. There were no significant differences in pupal duration, pupal weight and adult eclosion rate of F1 generation between the control and insecticide treatments. The functional response of H. variegata to A. gossypii preys under different treatments fitted with the Holling Ⅱ model; the daily predation increased with increasing prey density, and the predation capacity of the 3rd instar larvae was lower than that of female and male adults. At the prey density of 50 individuals per Petri dish, the daily predation of the 3rd instar larvae of H. variegata treated with water control, LC20 and LC50 concentrations of afidopyropen was significantly higher than that with the LC10 treatment, but there was no significant difference between different treatments under other prey densities for the 3rd instar larvae. Moreover, no significant differences existed between different treatments in the daily predation of 2-day-old female adults of H. variegata when provided with the same prey density. When provided with 100 individual preys per Petri dish, the daily predation of male adults under water control, LC10 and LC50 treatments was significantly higher than that under LC20 treatment. At other prey densities, there was no significant difference for male adults among different treatments. There was also no significant effect on the flight parameters (e.g., flight speed, time and distance) of 2-day-old female and male adult H. variegata treated with different concentrations of afidopyropen indoors by using flight-mill test system. Under the same treatment, there was no significant difference in the flight distance between female and male adults. This study indicated that afidopyropen was ecologically safe to H. variegata compared to most main chemical insecticides against aphids, and could be widely applied for the green control of crop aphids in Xinjiang. |
| keywords:Hippodamia variegata afidopyropen insecticide growth and development predatory function flight ability |
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