E. Kweka, A. Mahande, S. Msangi, Subira Sayumwe, J. Ouma, V. Temba, Lucile J. Lyaruu, Y. Himeidan
{"title":"Sumilarv 0.5G对坦桑尼亚北部严格冈比亚按蚊和阿拉伯按蚊的生物活性研究","authors":"E. Kweka, A. Mahande, S. Msangi, Subira Sayumwe, J. Ouma, V. Temba, Lucile J. Lyaruu, Y. Himeidan","doi":"10.24248/EASCI.V1I1.17","DOIUrl":null,"url":null,"abstract":"Background:\n Sumilarv 0.5G (Sumitomo Chemical Co., Ltd., Tokyo, Japan)\n is a granular insecticide developed for the control of mosquito and fly\n aquatic stages. The active ingredient is pyriproxyfen (4-phenoxyphenyl\n (RS)-2-(2 – pyridyloxy) propyl ether), a juvenile hormone analogue that\n acts as an insect growth regulator. Sumilarv 0.5G functions by\n inhibition of adult emergence from pupae. In this study, the Tropical\n Pesticides Research Institute in Tanzania carried out laboratory,\n semifield, and full-field evaluation on a new candidate of pupicide,\n Sumilarv 0.5G. The present study, therefore, sought to test the\n bioefficacy of Sumilarv 0.5G in laboratory, semifield, and full-field\n conditions in Mabogini, northern Tanzania. Methods: Standard World\n Health Organization laboratory bioefficacy evaluations of Sumilarv 0.5G\n and untreated microcosms were prepared and monitored for inhibition of\n the larvae introduced to the habitats, while field plots were monitored\n for 5 weeks after the introduction of Sumilarv 0.5G using\n manufacturer-recommended doses. Results: Sumilarv 0.5G\n biolarvicide was highly efficacious in its pupicidal effect, with an\n adult emergence inhibition rate of up to 90% in all conditions. In both\n laboratory and semifield experiments, the emergence inhibition was\n dose-dependent, with the lowest adult emergence being recorded in\n association with the highest Sumilarv 0.5G dose of 0.03 ppm of active\n ingredient. Under field conditions, the application rate recommended by\n the manufacturer – 5 mg ai per m2 –\n reduced the adult emergence rate by 90% to 96% for up to 5\n weeks. Conclusion:\n We demonstrated the long-lasting biological activity of\n Sumilarv 0.5G under field conditions. Notably, the field efficacy was\n attained using the recommended dose of 5 mg per m2, thus making it economical to apply this\n product, which is capable of inhibiting mosquito productivity in natural\n habitats for longer periods than achieved by existing products, the\n efficacy of which is usually about 1 week.","PeriodicalId":11398,"journal":{"name":"East Africa Science","volume":"15 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Biological Activity of Sumilarv 0.5G against Anopheles gambiae sensu stricto and Anopheles arabiensis in Northern Tanzania\",\"authors\":\"E. Kweka, A. Mahande, S. Msangi, Subira Sayumwe, J. Ouma, V. Temba, Lucile J. Lyaruu, Y. Himeidan\",\"doi\":\"10.24248/EASCI.V1I1.17\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Background:\\n Sumilarv 0.5G (Sumitomo Chemical Co., Ltd., Tokyo, Japan)\\n is a granular insecticide developed for the control of mosquito and fly\\n aquatic stages. The active ingredient is pyriproxyfen (4-phenoxyphenyl\\n (RS)-2-(2 – pyridyloxy) propyl ether), a juvenile hormone analogue that\\n acts as an insect growth regulator. Sumilarv 0.5G functions by\\n inhibition of adult emergence from pupae. In this study, the Tropical\\n Pesticides Research Institute in Tanzania carried out laboratory,\\n semifield, and full-field evaluation on a new candidate of pupicide,\\n Sumilarv 0.5G. The present study, therefore, sought to test the\\n bioefficacy of Sumilarv 0.5G in laboratory, semifield, and full-field\\n conditions in Mabogini, northern Tanzania. Methods: Standard World\\n Health Organization laboratory bioefficacy evaluations of Sumilarv 0.5G\\n and untreated microcosms were prepared and monitored for inhibition of\\n the larvae introduced to the habitats, while field plots were monitored\\n for 5 weeks after the introduction of Sumilarv 0.5G using\\n manufacturer-recommended doses. Results: Sumilarv 0.5G\\n biolarvicide was highly efficacious in its pupicidal effect, with an\\n adult emergence inhibition rate of up to 90% in all conditions. In both\\n laboratory and semifield experiments, the emergence inhibition was\\n dose-dependent, with the lowest adult emergence being recorded in\\n association with the highest Sumilarv 0.5G dose of 0.03 ppm of active\\n ingredient. Under field conditions, the application rate recommended by\\n the manufacturer – 5 mg ai per m2 –\\n reduced the adult emergence rate by 90% to 96% for up to 5\\n weeks. Conclusion:\\n We demonstrated the long-lasting biological activity of\\n Sumilarv 0.5G under field conditions. Notably, the field efficacy was\\n attained using the recommended dose of 5 mg per m2, thus making it economical to apply this\\n product, which is capable of inhibiting mosquito productivity in natural\\n habitats for longer periods than achieved by existing products, the\\n efficacy of which is usually about 1 week.\",\"PeriodicalId\":11398,\"journal\":{\"name\":\"East Africa Science\",\"volume\":\"15 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-03-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"East Africa Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.24248/EASCI.V1I1.17\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"East Africa Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24248/EASCI.V1I1.17","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
背景:Sumilarv 0.5G (Sumitomo Chemical Co., Ltd, Tokyo, Japan)是一种用于控制蚊子和苍蝇水生阶段的颗粒状杀虫剂。有效成分是吡丙醚(4-phenoxyphenyl (RS)-2-(2 - pyridyloxy)丙基醚),一种幼体激素类似物,可作为昆虫生长调节剂。Sumilarv 0.5G通过抑制成虫羽化而起作用。在本研究中,坦桑尼亚热带农药研究所对一种新的杀毒剂Sumilarv 0.5G进行了实验室、半田间和全田间评价。因此,本研究试图在坦桑尼亚北部Mabogini的实验室、半场和全场条件下测试Sumilarv 0.5G的生物功效。方法:采用世界卫生组织(who)标准实验室生物功效评价方法,对0.5G和未处理的苏米拉尔韦(Sumilarv)微剂进行监测,监测其对引入生境的幼虫的抑制作用,并在引入苏米拉尔韦0.5G后,采用生产厂家推荐剂量对田间小区进行监测。结果:summilarv 0.5G杀菌剂杀毒效果良好,在所有条件下成虫羽化抑制率均达90%以上。在室内和半田间实验中,羽化抑制呈剂量依赖性,最低羽化率与0.03 ppm活性成分0.5G剂量最高有关。在田间条件下,生产商推荐的施用量(5 mg ai / m2)可使成虫羽化率降低90%至96%,持续时间长达5周。结论:在野外条件下,证明了Sumilarv 0.5G具有持久的生物活性。值得注意的是,使用每平方米5毫克的推荐剂量即可达到现场效果,因此使用该产品具有经济效益,与现有产品相比,该产品能够在自然生境中抑制蚊子繁殖的时间更长,其功效通常为1周左右。
Biological Activity of Sumilarv 0.5G against Anopheles gambiae sensu stricto and Anopheles arabiensis in Northern Tanzania
Background:
Sumilarv 0.5G (Sumitomo Chemical Co., Ltd., Tokyo, Japan)
is a granular insecticide developed for the control of mosquito and fly
aquatic stages. The active ingredient is pyriproxyfen (4-phenoxyphenyl
(RS)-2-(2 – pyridyloxy) propyl ether), a juvenile hormone analogue that
acts as an insect growth regulator. Sumilarv 0.5G functions by
inhibition of adult emergence from pupae. In this study, the Tropical
Pesticides Research Institute in Tanzania carried out laboratory,
semifield, and full-field evaluation on a new candidate of pupicide,
Sumilarv 0.5G. The present study, therefore, sought to test the
bioefficacy of Sumilarv 0.5G in laboratory, semifield, and full-field
conditions in Mabogini, northern Tanzania. Methods: Standard World
Health Organization laboratory bioefficacy evaluations of Sumilarv 0.5G
and untreated microcosms were prepared and monitored for inhibition of
the larvae introduced to the habitats, while field plots were monitored
for 5 weeks after the introduction of Sumilarv 0.5G using
manufacturer-recommended doses. Results: Sumilarv 0.5G
biolarvicide was highly efficacious in its pupicidal effect, with an
adult emergence inhibition rate of up to 90% in all conditions. In both
laboratory and semifield experiments, the emergence inhibition was
dose-dependent, with the lowest adult emergence being recorded in
association with the highest Sumilarv 0.5G dose of 0.03 ppm of active
ingredient. Under field conditions, the application rate recommended by
the manufacturer – 5 mg ai per m2 –
reduced the adult emergence rate by 90% to 96% for up to 5
weeks. Conclusion:
We demonstrated the long-lasting biological activity of
Sumilarv 0.5G under field conditions. Notably, the field efficacy was
attained using the recommended dose of 5 mg per m2, thus making it economical to apply this
product, which is capable of inhibiting mosquito productivity in natural
habitats for longer periods than achieved by existing products, the
efficacy of which is usually about 1 week.