Jambulingam P, Sadanandane C, Nithiyananthan N, Subramanian S, Zaim M
Division of Vector Biology and Control, Vector Control Research Centre (ICMR), Pondicherry, India.
J Am Mosq Control Assoc. 2009 Sep;25(3):315-22. doi: 10.2987/08-5806.1.
Novaluron 10% emulsifiable concentrate (EC), an insect growth regulator (IGR), was tested against Culex quinquefasciatus immatures at 1, 5, and 10 mg active ingredient (AI)/m2 applied to cesspits, drains, and abandoned wells. The IGR produced 80-100% inhibition of adult emergence (IE) for > 1 week (10-14 days) in cesspits, 1-2 weeks in street drains, and 5-10 weeks in abandoned wells at the 3 application rates. The efficacy increased with the increasing dose in street drains and abandoned wells. The residual activity of the IGR was longer in abandoned wells compared to drains and cesspits. Based on the small-scale trial, doses of 1, 5, and 10 mg AI/m2 were used in the medium-scale trial for cesspits, abandoned wells, and street drains, respectively. The efficacy observed in medium-scale trial was similar to that in the small-scale trial. The results indicate that novaluron 10% EC can be used for larval control against Cx. quinquefisciatus at the application rate of 1 mg AI/m2 at 10-day intervals in cesspits, at 5 mg AI/m2 at 2-month intervals in abandoned wells, and at 10 mg AI/m2 applied at fortnightly intervals to drains. Even at the lowest rate of 1 mg AI/m2, the IGR prevented adult emergence for at least a week in cesspits and street drains and for a month in abandoned wells. Novaluron 10% EC could be one of the options for larval control operations in integrated vector management.
10% 诺伐隆乳油（EC）是一种昆虫生长调节剂（IGR），在应用于污水坑、排水沟和废弃水井时，以1、5和10毫克活性成分（AI）/平方米的剂量对致倦库蚊幼虫进行了测试。在这三种施用量下，该昆虫生长调节剂在污水坑中对成虫羽化产生了80%-100% 的抑制作用，持续时间超过1周（10-14天）；在街道排水沟中持续1-2周；在废弃水井中持续5-10周。在街道排水沟和废弃水井中，药效随剂量增加而增强。与排水沟和污水坑相比，该昆虫生长调节剂在废弃水井中的残留活性更长。基于小规模试验，在中规模试验中，分别对污水坑、废弃水井和街道排水沟使用了1、5和10毫克AI/平方米的剂量。中规模试验中观察到的药效与小规模试验相似。结果表明，10% 诺伐隆乳油可用于控制致倦库蚊幼虫，在污水坑中以1毫克AI/平方米的施用量，每隔10天施用一次；在废弃水井中以5毫克AI/平方米的施用量，每隔2个月施用一次；在排水沟中以10毫克AI/平方米的施用量，每隔两周施用一次。即使在最低剂量1毫克AI/平方米时，该昆虫生长调节剂也能在污水坑和街道排水沟中至少一周内阻止成虫羽化，在废弃水井中阻止成虫羽化一个月。10% 诺伐隆乳油可能是综合病媒管理中幼虫控制操作的选择之一。
