殺蟲劑對嘉義地區水稻褐飛蝨[Nilaparvata lugens (Stål)]與白背飛蝨[Sogatella furcifera (Horváth)]之室內藥效評估

Laboratory Evaluation of the Effect of Insecticides for Controlling Brown Planthopper [Nilaparvata lugens (Stål)] and Whitebacked Planthopper [Sogatella furcifera (Horváth)] in Chiayi Region

賴柏羽(Po-Yu Lai) ； 黃守宏(Shou-Horng Huang)

《台灣農業研究》 70卷4期 (2021/12) Pp. 285-297

https://doi.org/10.6156/JTAR.202112_70(4).0005

摘要

本研究利用藥劑噴布法及秧苗浸藥法評估20種成品農藥對2016年嘉義地區採集之水稻褐飛蝨[Nilaparvatalugens (Stål)]及白背飛蝨[Sogatella furcifera (Horváth)]族群4-5齡若蟲之致死效果，結果顯示以藥劑噴布法測試對褐飛蝨及白背飛蝨致死率最高之藥劑，分別為48.34%丁基加保扶水基乳劑及16%可尼丁水溶性粒劑，其致死率分別為84.7%及93.4%，其次為20%達特南水溶性粒劑及20%免扶克乳劑，致死率介於69.0-80.3%；以秧苗浸藥法測試對褐飛蝨致死效果，致死率最高之藥劑為75%歐殺松水溶性粉劑及48.34%丁基加保扶水基乳劑，致死率介於75.7-91.0%，而對白背飛蝨之致死率較高之藥劑則為20%免扶克乳劑、48.34%丁基加保扶水基乳劑及25%派滅淨可濕性粉劑，其處理後白背飛蝨之致死率皆為84.7%。綜合以上測試結果顯示，僅有20%達特南水溶性粒劑、48.34%丁基加保扶水基乳劑及20%免扶克乳劑等3種藥劑為同時對褐飛蝨及白背飛蝨具有較佳致死效果之藥劑，因此未來於水稻害蟲防治藥劑選用上，需考量登記藥劑種類外，藉由監測田間飛蝨類族群發生種類並審慎選擇有效藥劑，始能達到經濟有效之防治效果。

關鍵字

褐飛蝨 ； 白背飛蝨 ； 殺蟲劑 ； 藥劑噴布法 ； 秧苗浸藥法

並列摘要

The objective of this study was to evaluate the effectiveness of twenty registered insecticides on 4^(th)-5^(th) instar nymph of brown planthopper [Nilaparvata lugens (Stål)] and whitebacked planthopper [Sogatella furcifera (Horváth)] collected from Chiayi region during 2016. The morality of both planthopper species was tested by tower spray and rice seedling dipping methods in laboratory conditions. The results from tower spray tests on brown and whitebacked planthopper indicated that carbosulfan (48.34% EW) and clothianidin (16% SG) were the most effective insecticides, causing the morality at 84.7% and 93.4% respectively, followed by dinotefuran (20% SG) and benfuracarb (20% EC), mortality between 69.0-80.3%. Acephate (5% SP). Carbosulfan (48.34% EW) exhibited the mortality (75.7-91.0%) significantly higher than others on brown planthopper. Although benfuracarb (20% EC), carbosulfan (48.34% EW) and pymetrozine (25% WP) are commonly recommended for controlling whitebacked planthopper, the mortalities were 84.7% using the rice seedling dipping method. Judging from all results among the twenty insecticides by two test methods, dinotefuran (20% SG), carbosulfan (48.34% EW) and benfuracarb (20% EC) were effective for controlling both brownand whitebacked planthoppers. To effectively control rice pests, occurrence of planthopper species in the field must be closely monitored. In addition to registered insecticides, efforts are needed to select more effective insecticides in order to achieve cost-effective management.

並列關鍵字

Nilaparvata lugens (Stål) ； Sogatella furcifera (Horváth) ； Insecticide ； Tower spray method ； Rice seedling dipping method