| 第 53 卷第 3 期 |  | Vol. 53 No. 3 | | 2023 年 6 月 | Jun 2023 |
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所屬欄目：農藥及中間體
六種殺蟲(chóng)劑對玉米草地貪夜蛾的室內毒力及田間防效 |
| 吳曉峰1，孔玄慶2，3，張艷峰4，歐曉明2，3*，黃至暢2，3，李成業(yè)1，蔣何雪4，金晨鐘5
（1. 永州市農業(yè)科學(xué)研究所，湖南 永州 425100；2. 湖南化工研究院有限公司 國家農藥創(chuàng )制工程技術(shù)研究中心，湖南 長(cháng)沙 410014；3. 農用化學(xué)品湖南省重點(diǎn)實(shí)驗室，湖南 長(cháng)沙 410014；4. 永州市農業(yè)綜合服務(wù)中心，湖南 永州 423000；5. 湖南人文科技學(xué)院，湖南 婁底 413800） |
| 摘 要：為了篩選出防治玉米草地貪夜蛾的高效農藥，采用浸葉法和《草地貪夜蛾防控技術(shù)規范》推薦的方法，對常見(jiàn)的六種殺蟲(chóng)劑分別進(jìn)行室內毒力測定和田間防效評價(jià)。試驗結果表明，11.6%甲維鹽·氯蟲(chóng)苯甲酰胺懸浮劑、25%氯蟲(chóng)苯甲酰胺·茚蟲(chóng)威懸浮劑、10%氯蟲(chóng)苯甲酰胺·虱螨脲懸浮劑、12%阿維·蟲(chóng)螨腈水乳劑、25%阿維·螺蟲(chóng)乙酯懸浮劑、25%呋蟲(chóng)胺·唑蟲(chóng)酰胺懸浮劑對草地貪夜蛾3齡幼蟲(chóng)的半致死濃度（LC50）分別為0.486、0.995、1.024、2.147、4.573、5.761 mg/L；田間防效試驗中，藥后7 d，11.6%甲維鹽·氯蟲(chóng)苯甲酰胺懸浮劑在用量為20、40 g a.i./hm2時(shí)的防效均超過(guò)90%，25%氯蟲(chóng)苯甲酰胺·茚蟲(chóng)威懸浮劑在用量為60 g a.i./hm2下的防效也較好，為92.73%，25%阿維·螺蟲(chóng)乙酯懸浮劑和25%呋蟲(chóng)胺·唑蟲(chóng)酰胺懸浮劑在低用量處理組中防效較差，剩余其他各處理的防效均超過(guò)80%。建議在草地貪夜蛾的田間防治中優(yōu)先使用11.6%甲維鹽·氯蟲(chóng)苯甲酰胺懸浮劑，且與25%氯蟲(chóng)苯甲酰胺·茚蟲(chóng)威懸浮劑、10%氯蟲(chóng)苯甲酰胺·虱螨脲懸浮劑、12%阿維·蟲(chóng)螨腈水乳劑等藥劑輪用。 |
| 關(guān)鍵詞：農藥；草地貪夜蛾；防效 |
| 中圖分類(lèi)號：S433.4 文獻標識碼：A 文章編號：1009-9212（2023）03-0020-04 |
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| Toxicities and Field Control Efficacy of Six Insecticides Against Spodoptera frugiperda |
| WU Xiao-feng1, KONG Xuan-qing2,3, ZHANG Yan-feng4, OU Xiao-ming2,3*, HUANG Zhi-chang2,3, LI Cheng-ye1, JIANG He-xue4, JIN Chen-zhong5
(1. Yongzhou Institute of Agricultural Science, Yongzhou 425100, China; 2. National Engineering Research Center for Agrochemicals, Hunan Research Institute of Chemical Industry, Co., Ltd., Changsha 410014, China; 3. Agrochemical Key Laboratory of Hunan Province, Changsha 410014, China; 4. Agricultural Comprehensive Service Center of Yongzhou, Yongzhou 423000, China; 5. Hunan University of Humanities, Science and Technology, Loudi 413800, China) |
| Abstract：In order to screen out effective insecticides for controlling the fall armyworm Spodoptera frugiperda, toxicities and field control efficacy of six insecticides were tested against based on leaf-dipping method and “Technical Specification of Control for Fall Armyworm”. Experimental results showed that the LC50 of 11.6% emamectin benzoate·chlorantraniliprole SC, 25% chlorantraniliprole·indoxacarb SC, 10% chlorantraniliprole·lufenuron SC, 12% abamectin·chlorfenapyr EW, 25% abamectin·spirotetramat SC and 25% dinotefuran·tolfenpyrad SC to were 0.486、0.995、1.024、2.147、4.573、5.761 mg/L, respectively. At seven days after application, the control efficacyof 11.6% emamectin benzoate·chlorantraniliprole SC at 20 and 40 g a.i./hm2 were more than 90%, and 25% chlorantraniliprole·indoxacarb SC at 60 g a.i./hm2 was 92.73%, and 25% abamectin·spirotetramat SC and 25% dinotefuran·tolfenpyrad SC had a poor control efficacy. The remaining insecticide treatments exceeded 80% control efficacy. Therefore, it is recommended that 11.6% emamectin benzoate·chlorantraniliprole SC should be applied in preference to control the fall armyworms and rotate with 25% chlorantraniliprole·indoxacarb SC, 10% chlorantraniliprole·lufenuron SC and 12% abamectin·chlorfenapyr EW. |
| Key words：pesticides; Spodoptera frugiperda; control effect |
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基金項目：永州市2021年度指導性科技計劃項目（2021-YZKJZD-026）。
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作者簡(jiǎn)介：吳曉峰（1989—），男，湖南永州人，農藝師，碩士，研究方向：農業(yè)推廣（E-mail:758969366@qq.com）。
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聯(lián) 系 人：歐曉明，研究員，博士，研究方向：植物保護及農藥殘留（E-mail:xmouhn@163.com）。
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收稿日期：2023-06-13
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