1%S-烯虫酯颗粒剂控制雨水井中白纹伊蚊的效果研究
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摘要
目的观察1%S-烯虫酯颗粒剂控制雨水井中白纹伊蚊的效果。方法选择2个街道,一个作为实验区,另一个作为对照区,每月全覆盖清除1次各类小容器积水,对不能清除的积水如雨水井等,实验区按照20 g/m~2剂量每月投放1次1%S-烯虫酯颗粒剂,对照区则每月投放1次1%安备(1%双硫磷颗粒剂),投放剂量同实验组,每月1次采用诱蚊诱卵器法、孳生地调查法、羽化率观察等指标,了解实验区和对照区的蚊虫密度变化情况。结果实验区蚊虫平均羽化抑制率为92.66%,明显高于对照区的6.46%(χ~2=431.015 6,P<0.05);实验区平均幼虫期死亡率、蛹期死亡率、抑制羽化率分别为53.15%、36.01%、3.50%,对照区平均幼虫期死亡率、蛹期死亡率、抑制羽化率分别为0.34%、1.36%、4.76%;实验区平均诱卵器密度为4.33%,对照区平均密度为8.33%,RPI=8.68;白纹伊蚊孳生地调查,实验区阳性率2.83%;对照区阳性率8.83%(χ~2=19.661 2,P<0.05)。结论 1%S-烯虫酯为保幼激素昆虫生长调节剂,对雨水井中白纹伊蚊幼虫控制具有较好的效果,且对环境友好。
Objective To evaluate the control efficacy of 1% S-methoprene against Aedes albopictus in rainwater wells.Methods The trial was implemented in two streets.Rainwater wells in one street as the experimental field were treated with 1% S-methoprene granules at a dose of 20 g/m~2 monthly,and those in the other street as the control field were treated with 1% Abate( 1% temephos granules)regularly at a dose of 20 g/m~2 monthly.The variations of mosquito density in the experimental and control groups were observed by indicators of mosquito traps,breeding ground survey and eclosion rate.Results The cumulative mosquito eclosion inhibition rate was 92.66% in the experimental field and 6.46% in the control field,with significant difference(χ~2=431.015 6,P<0.05).The average larval mortality,pupa mortality and eclosion inhibition rates were 53.15%,36.01% and 3.50% in the experimental field,and 0.34%,1.36% and 4.76% in the control field;the average density of the ovipositor was 4.33% in the experimental field and 8.33% in the control field,with RPI of 8.68;the Aedes albopictus breeding site survey showed that the positive rate was 2.83% in the experimental field and 8.83% in the control field(χ~2=19.661 2,P<0.05).Conclusion 1% S-methoprene granules showed good control effects on Aedes albopictus with environmentally friendly.
Objective To evaluate the control efficacy of 1% S-methoprene against Aedes albopictus in rainwater wells.Methods The trial was implemented in two streets.Rainwater wells in one street as the experimental field were treated with 1% S-methoprene granules at a dose of 20 g/m~2 monthly,and those in the other street as the control field were treated with 1% Abate( 1% temephos granules)regularly at a dose of 20 g/m~2 monthly.The variations of mosquito density in the experimental and control groups were observed by indicators of mosquito traps,breeding ground survey and eclosion rate.Results The cumulative mosquito eclosion inhibition rate was 92.66% in the experimental field and 6.46% in the control field,with significant difference(χ~2=431.015 6,P<0.05).The average larval mortality,pupa mortality and eclosion inhibition rates were 53.15%,36.01% and 3.50% in the experimental field,and 0.34%,1.36% and 4.76% in the control field;the average density of the ovipositor was 4.33% in the experimental field and 8.33% in the control field,with RPI of 8.68;the Aedes albopictus breeding site survey showed that the positive rate was 2.83% in the experimental field and 8.83% in the control field(χ~2=19.661 2,P<0.05).Conclusion 1% S-methoprene granules showed good control effects on Aedes albopictus with environmentally friendly.
引文
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[9] 周毅彬,冷培恩,曹辉,等.气温和降雨量对白纹伊蚊密度影响的研究[J].中华卫生杀虫药械,2010,16(2):105-107.
[2] 郭玉红,王君 ,刘起勇,等.登革热传播媒介伊蚊综合治理研究[J].中国媒介生物学及控制杂志,2008,19(6):588-590.
[3] 徐仁权,徐宏 ,李洪宝,等.居民区控制登革热媒介蚊虫的方法与效果探索[J].中国媒介生物学及控制杂志,2008,19(4):287-290.
[4] Brian HK,Richard CR.Mosquito Eradication:the story of killing “Campto” [M].Australia:Csiro Publishing,2013:1-256.
[5] 刘大鹏,张育富,褚宏亮,等.烯虫酯对淡色库蚊幼虫剂量效应的实验研究[J].中华卫生杀虫药械,2014,25(3):228-230.
[6] 苏衡.一个根除输入性蚊虫的故事[C].全国卫生杀虫药械学术交流会,常州,2017.
[7] 程江,吕永鹏,黄小芳,等.上海中心城区合流制排水系统调蓄池环境效应研究[J].环境科学,2009,30(8):2234-2240.
[8] 曹淦,吕旭峰,李海燕,等.S-烯虫酯在新西兰根除输入性蚊虫中的应用[J].中华卫生杀虫药械,2018,24(3):299-302.
[9] 周毅彬,冷培恩,曹辉,等.气温和降雨量对白纹伊蚊密度影响的研究[J].中华卫生杀虫药械,2010,16(2):105-107.