| 乙虫脒对水稻螟虫的作用方式和应用研究 |
| |
| 引用本文： | 方继朝,郭慧芳,刘向东,钱亚民,王林贵,陈浩海.乙虫脒对水稻螟虫的作用方式和应用研究[J].农药学学报,1999,1(3):26-32. |
| |
| 作者姓名： | 方继朝 郭慧芳 刘向东 钱亚民 王林贵 陈浩海 |
| |
| 作者单位： | 1.江苏省农科院植保所,南京210014 |
| |
| 基金项目： | “九五”国家攻关和江苏省重大攻关课题! (BG96 513- 2 )研究内容 |
| |
| 摘 要： | 通过室内生物测定和田间试验 ,较系统地研究了乙虫脒对水稻螟虫的内吸、触杀和杀卵活性以及田间效果 ,同时评价了其对天敌的安全性。结果表明 :1)乙虫脒对二化螟和三化螟的内吸活性很好 ,且对二化螟的活性高于三化螟 ,2 5mg/ L乙虫脒对二化螟和三化螟的内吸杀虫效果分别为 90 .9%和 50 .0 % ,10 0mg/ L乙虫脒对三化螟的杀虫效果为 92 .3%。 2 )触杀活性高 ,对三化螟和二化螟的接触 L D50 值分别为 6 .4×10 -5μg/头和 2 .13× 10 -5μg/头 ,大大低于甲胺磷的 L D50 值 (1.331× 10 -3 和 1.781× 10 -3 μg/头 )。 3)综合活性好 ,对二化螟和三化螟分别只需 2 0和 2 5mg/ L即可达到 85%以上的防治效果。 4 )有一定的杀卵活性 ,2 0 0mg/ L对二化螟和三化螟的杀卵效果分别为 83.4 %和 0 .7% ,50 0 mg/ L对三化螟的杀卵效果为 93.4 %。 5)田间试验表明 ,112 .5g/ hm2 (a.i.,下同 )乙虫脒可有效控制三化螟枯心 ,在江苏省高淳地区 30 0 g/ hm2 可有效控制三化螟白穗 ,而在江苏省如东地区 6 7.5g/ hm2 即对三化螟和大螟白穗有较好的控制效果。此外 ,112 .5g/hm2 还对飞虱有较好的控制作用。 6 )对寄生蜂和蜘蛛较安全。
|
| 关 键 词： | 乙虫脒 水稻螟虫 作用方式 应用策略 |
MODE OF ACTION AND APPLYING TACTIC OF ACETAMIPRID AGAINST RICE STEM BORERS |
| |
| Fang Ji-chao,Guo Hui-fang,Liu Xiang-dong,Qian Ya-ming,Wang Lin-gui and Chen Hao-hai.MODE OF ACTION AND APPLYING TACTIC OF ACETAMIPRID AGAINST RICE STEM BORERS[J].Chinese Journal of Pesticide Science,1999,1(3):26-32. |
| |
| Authors: | Fang Ji-chao Guo Hui-fang Liu Xiang-dong Qian Ya-ming Wang Lin-gui and Chen Hao-hai |
| |
| Institution: | 1.Institute of Plant Protection2.Jiangsu Academy of Agricultural Science3.Nanjing 2100144.Department of Plant Protection,Nanjing A gricultural University 2100955.Institute of Horticulture, Jiangsu A cademy of A gricultural Sciences |
| |
| Abstract: | The bioassay and field evaluation of acetamiprid against rice stem borers were carried out. The results showed that:1) Acetamiprid had excellent systemic toxicity against Scirpophaga incertulas and Chilo suppessalis, the mortality of Chilo suppessalis with 25 mg/L acetamiprid was 90%, and that of Scirpophaga incertulas with 100 mg/L acetamiprid was 92.3%. 2)The medial lethal dosages(LD 50) of acetamiprid against Scirpophaga incertulas and Chilo suppessalis were 0.6400 and 0.2130×10 -4 μg per individual, respectively, while that of methamidophos were 13.3114 and 17.8114×10 -4 μg per individual,respectively. 3) The integrated efficacy was more than 85% with 20 mg/L acetamiprid against Chilo suppessalis and 25 mg/L against Scirpophaga incertulas. 4) The efficacy of 200 mg/L and 500 mg/L acetamiprid on eggs of Chilo suppessalis and Scirpophaga incertulas were 83.4% and 93.4%, respectively . 5) Plot experiment in paddies showed that application of 112.5 and 300 g/hm 2(a.i.) acetamiprid could control dead heart and white head engendered by Scirpophaga incertulas in Jiangsu Gaochun, respectively, and 67.5 g/hm 2 could control white head in Jiangsu Rudong. 112.5 g/hm 2 acetamiprid was also effective for control of Nilaparvata lugens. 6) Acetamiprid was safe to enemies in field. |
| |
| Keywords: | Acetamiprid Rice stem borer Mode of action Applying tactic |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《农药学学报》浏览原始摘要信息 |
| 点击此处可从《农药学学报》下载免费的PDF全文 |
|
