| 20%甲胺.氰乳油防治棉铃虫的一种田间药效评价方法 |
| |
| 引用本文： | 许立瑞 许立耀. 20%甲胺.氰乳油防治棉铃虫的一种田间药效评价方法[J]. 农药科学与管理, 1999, 20(1): 27-28,21 |
| |
| 作者姓名： | 许立瑞 许立耀 |
| |
| 作者单位： | 山东棉花研究中心(许立瑞)，蓬莱市荆魏学校(许立耀)，临清市金郝庄乡科协(王玉生) |
| |
| 摘 要： | 在田间药效试验中心用空白对照同步孵化率，将同期卵数折成虫口基数，在计算保顶效果和保蕾铃效果时，先减去药前受害顶心株数和受害蕾铃数，使药效试验结果更接近实际。
|
| 关 键 词： | 甲胺.氰 棉铃虫 试验方法 |
A Evaluation Method of Field Trial for Controlling of Ballworm by 20% Methamidophos with Fenvalerate EC |
| |
| Xu Liriu. A Evaluation Method of Field Trial for Controlling of Ballworm by 20% Methamidophos with Fenvalerate EC[J]. Pesticide Science and Administration, 1999, 20(1): 27-28,21 |
| |
| Authors: | Xu Liriu |
| |
| Abstract: | During the field test, we convert the eggs into grown-up bollworms. We Consider the number of damaged cotton terminal buds and damaged cotton buds and bolls before using pesticide, when we calculate the protecting rates of cotton buds and bolls. The result is very close to the reality. |
| |
| Keywords: | methamidophos fenvalerate bollworm test method |
| 本文献已被 CNKI 维普 等数据库收录！ |
