| 吴立民.玉米田三种螟虫化蛹规律的研究[J].植物保护,1995,21(3):24-26. |
| 玉米田三种螟虫化蛹规律的研究 |
| A Study on the Pupation Pattern of Three Pyralid Calerpillars in Corn Field. |
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| DOI： |
| 中文关键词: 玉米螟虫，化蛹规律，测报 |
| 英文关键词:pyralid caterpillars,pupation pattern,prediction. |
| 基金项目: |
| 吴立民 |
| 江苏省新沂市农业局 221400 |
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| 中文摘要: |
| 经连续４年的观察，玉米螟和高粱条螟在玉米茎秆内和叶鞘内侧化蛹的比例分别为８５．３％和８３．６％，在雌穗上化蛹的比例为１４．３％和１６．４％，桃蛀螟在叶腋处和雌穗顶端化蛹的比例为８６．５％，茎秆内化蛹的比例只占１３．５％。根据３种螟虫各代化蛹高峰期均明显而集中，可简化调查方法用于测报。 |
| 英文摘要: |
| Four years′observation showed that 85.3%and 83.6%of Ostrina nubilalis(Hubner)and Proceras venosatus(Walker)pupate respectively in inner sides of leaf sheath and 14.3%and 16.4%were on the corn ears,respectively.Eighty-six point five per cent of Dichocrois punctiferalis Guenee pupated in leaf axils and on the tops of the ears,and 13.5%were in boring stalks.The pupation peaks for different generations of these pyralid caterpillars were obvious,so,the sampling methods for prediction might be simplified. |
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