透過您的圖書館登入
IP:18.221.19.26
  • 期刊

四種殺蟲劑對大黑星龜金花蟲(Aspidomorpha Miliaris Fab.)幼蟲之毒效

Toxicity of Four Insecticides to Aspidomorpha Miliaris Fab. Larvae

摘要


本研究探討培丹、陶斯松、益達胺及阿巴汀四種殺蟲劑對大黑星龜金花蟲(Aspidomorpha miliaris Fab.)幼蟲之毒效。結果顯示經培丹處理72小時後,在稀釋1000倍處理中,可造成一至五齡幼蟲97~100%之死亡率,且齡期之間無顯著差異;稀釋2000倍處理組中,一至五齡幼蟲死亡率依序為47、69、81、81及77%。陶斯松經稀釋1000及2000倍皆能造成一至五齡幼蟲100%死亡率;稀釋5000倍時一至四齡幼蟲死亡率均為100%,五齡幼蟲為78%。益達胺經稀釋1000-10000倍皆能造成一至五齡幼蟲98~100%之死亡率;15000倍稀釋濃度造成一及二齡幼蟲99%之死亡率;三、四及五齡幼蟲84、70及60%死亡率。阿巴汀經稀釋1000~5000倍,皆能造成一至五齡幼蟲100%之死亡率;稀釋10000~20000倍,一至三齡幼蟲死亡率為100%,四齡幼蟲死亡率為92、97及38%,五齡幼蟲死亡率為14、14及8%。殺蟲劑對大黑星龜金花蟲幼蟲之毒效會隨藥劑之稀釋倍數增加而下降;若就同一齡期同一濃度而言,藥效呈現益達胺>阿巴汀>陶斯松>培丹之趨勢。對大黑星龜金花蟲的防治之建議:(1)培丹可施用稀釋1000倍防治幼蟲各齡期;(2)陶斯松可施用稀釋1000及2000倍防治幼蟲各齡期、稀釋5000倍時能防治一至四齡幼蟲;(3)益達胺可施用稀釋1000-10000倍防治幼蟲各齡期;(4)阿巴汀可施用稀釋1000~5000倍防治幼蟲各齡期。

並列摘要


This study was conducted to determine the toxicity of Cartap, Chlorpyrifos, Imidacloprid and Abamectin toward Aspidomorpha miliaris larvae at various dilutions. The results showed that, 72 hours after treatment, 1000X dilutions of Cartap caused 97-100% mortality towards 1-5 instars larvae with no significant difference. At 2000x dilution, the mortalities toward 1-5 instar larvae were 47, 69, 81, 81 and 77%, respectively. Chlorpyrifos caused 100% mortality toward 1-5 instars larvae at the dilutions of 1000 and 2000x. At 5000x dilution, the mortalities of 1-4 instars larvae were 100% and 78% for fifth instar larvae. At dilution of 1000-10000x, the mortalities of Imidacloprid toward 1-5 instars larvae were 98~100%. At 15000x dilution, the mortalities towards 1-2 instars larvae were 99%; and 3-5 instars larvae were 84, 70 and 60%. At 1000-5000x dilution, the mortalities of Abamectin towards 1-5 instars larvae were 100%. At 10000-20000x dilution, the mortalities of 1-3 instar were 100%; for fourth instar larvae were 92, 97 and 38%. The mortalities of fifth instar larvae were 14, 14 and 8%. Toxicity of the tested pesticides was decreased with the increasing dilution rate. At the same dilution and the same instar larva, the efficacy had a tendency of Imidacloprid > Abamectin > Chlorpyrifos > Cartap. Our suggestion of controlling A. miliaris is that: (1) Cartap at dilution 1000x is able to control all the five larval stage; (2) Chlorpyrifos at dilution of 1000 and 2000x are able to control all the five larval stage; at dilution of 5000x is able to control first to fourth instar larvae; (3) Imidacloprid at dilution of 1000-10000x are able to control all the five larval stage; (4) Abamectin at dilution of 1000-5000x are able to control all the five larval stage.

延伸閱讀