| 斯氏线虫对黄曲条跳甲田间种群的控制作用 |
| |
| 引用本文： | 魏洪义,王国汉.斯氏线虫对黄曲条跳甲田间种群的控制作用[J].植物保护学报,1993,20(1):61-64. |
| |
| 作者姓名： | 魏洪义 王国汉 |
| |
| 作者单位： | 江西农业大学 南昌(魏洪义)，华南农业大学 广州(王国汉) |
| |
| 摘 要： | 在广州,深圳等多个地点的田间试验结果表明,土壤施用斯氏线虫(Steinernema carpo-capsae)Agriotis 品系的侵染期线虫悬浮液来控制黄曲条跳甲(Phyllotreta striolata)幼虫的种群数量,当线虫剂量为100万条/m~2时,线虫的寄生率为40%—70%,有效虫口密度下降38%～84%;以50万条/m~2剂量的线虫与低浓度(1∶1000)的敌百虫混合施用,对跳甲的作用效果和前一种处理所取得的效果相接近。线虫施进土壤后15—20天内对跳甲幼虫尤其是三龄幼虫种群数量控制作用较好,超过这段时间其作用明显下降。因此,在蔬菜移栽至收割期间,施用二至三次100万条/m~2剂量的线虫悬液或50万条/m~2剂量的线虫与1000倍的敌百虫混合液,对黄曲条跳甲可取得较好的防治效果。
|
| 关 键 词： | 斯氏线虫 黄曲条跳甲 生物防治 |
THE CONTROL EFFECT OF A STEINERNEMA NEMATODE AGAINST STRIPED FLEA BEETLE |
| |
| Wei Hongyi and Wang Guohan.THE CONTROL EFFECT OF A STEINERNEMA NEMATODE AGAINST STRIPED FLEA BEETLE[J].Acta Phytophylacica Sinica,1993,20(1):61-64. |
| |
| Authors: | Wei Hongyi and Wang Guohan |
| |
| Affiliation: | Wei Hongyi (Jiangxi Agricultural University)
Wang Guohan (South China Agricultural University) |
| |
| Abstract: | Multi-loci field trials were conducted in Guangzhou and Shenzhen in 1989-1990 to determine the efficacy of the entomogenous nematode Steinernema carpocapsae agriotis against striped flea beetle(SFB) Phy-llotreta striclata(Fabricius).Soil treatment with 100 nematodes/cm2 resulted in 40%-70% incidence of larvae and 38%-84% reduce of effective population of this insect pest.Similar effect was obtained with a combination of 50 nematodes/cm2 and 1:1000 trichlorphon solution.The best effect on SFB population control,especially on 3rd instar larvae;was got within 15 or 20 days after soil treatment.Consequently,two or three of those soil treatments in vegetable field since its transplanting to harvest are available practice to control SFB. |
| |
| Keywords: | Steinernema carpocapsae striped flea beetle biological control |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《植物保护学报》浏览原始摘要信息 |
|
点击此处可从《植物保护学报》下载全文 |
