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杀虫剂不同施用方式对烟蚜抗药性发展和羧酸酯酶活力的影响
The effect of different spraying methods of insecticides on the resistance developing and the carboxylesterase activity of Myzus percicae.
吴兴富;宋春满
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DOI:
作者单位:云南省烟草科学研究所 云南 玉溪 653100
中文关键词:烟蚜,杀虫剂,连用,轮用,抗性,羧酸酯酶活力
英文关键词:Myzus persicae, insecticide, continuous use, rotational use, resistance, carboxylesterase activity
中文摘要:

. 室内模拟田间杀虫剂施药方式,研究3种杀虫剂连用及其顺序轮用对烟蚜Myzus persicae(Sulzer)抗药性发展和羧酸酯酶活力的影响。结果表明,氧化乐果、灭多威、高效氟氯氰菊酯连续施药9次后,其抗性分别增长73.3,8.9,10.4倍;氧化乐果→灭多威→高效氟氯氰菊酯顺序轮用3次(施药9次)后,氧化乐果抗性指数增长了47.3倍,灭多威抗性指数增长了6.7倍,高效氟氯氰菊酯抗性指数增长了5.0倍。羧酸酯酶活力检测结果表明,3种杀虫剂连用9次后,烟蚜种群的α-NA CarE活力分别增长了20.0,24.0和15.6倍,酶活力在0.6 (OD600nm/aphid/min)以上的个体比例分别增加了73.4%,87.6%和43.8%;而3种杀虫剂顺序轮用3次(施药9次)后,烟蚜种群的αNA CarE活力增长了10.2倍,酶活力在0.6以上的个体比例增加了4.8%。结果证实杀虫剂轮换施用能延缓烟蚜抗药性的发展和烟蚜种群α-NA CarE活力及高活力个体频率的增加。
 
 

英文摘要:

The effects of continuous use and rotational use of insecticides on the resistance developing and the carboxylesterase activity of Myzus persice(Sulzer) were studied by simulating used in field. The results showed that resistance of M. persice treated by nine continuous spraying to omethoate,meyhomyl and λcyhalothrin increased respectively by 54.2fold,8.9fold and 10.4fold,and the activity of α-NA carboxylesterase increased respectively by 20.0fold,24.0fold and 43.2fold,and the individuals with enzyme activity of 0.6 eased respectively by73%,87.6% and 43.8%. The resistance of M. persicae treated by three rotational spraying to omethoate,meyhomyl and λcyhalothrin increased respectively by 38.0fold,6.7fold and 5.0fold,and the enzyme activity increased by 10.2fold. The individuals with enzyme activity of 0.6 increased by 4.8% after treated by three rotations in order of omethoate,meyhomyl and λcyhalothrin. The resultsproved that rotational use of insecticides can delay the resistance developing,and decrease the carboxylesterase activity and the individuals with higher enzyme activity.

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