| 李智慧1,张志英1,曹烁2,陈哲3,董超4,周芳3,张小龙5,张燕3,陈立涛4,姜京宇2,李秀芹2.河北省二点委夜蛾发生世代研究初报[J].植物保护,2013,39(1):148-150. |
| 河北省二点委夜蛾发生世代研究初报 |
| Preliminary report on life history of Athetis lepigone in Hebei Province |
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| DOI： |
| 中文关键词: 二点委夜蛾 世代 发生 |
| 英文关键词:Athetis lepigone generation occurence |
| 基金项目: |
| 作者 | 单位 | | 李智慧1,张志英1,曹烁2,陈哲3,董超4,周芳3,张小龙5,张燕3,陈立涛4,姜京宇2,李秀芹2 | 1.河北省正定县植保站，正定050081；2.河北省植保植检站，石家庄050011；3.河北省辛集市植保站，辛集052360； 4.河北省馆陶县植保站，馆陶057750；5.河北省安新县植保站, 安新071600 |
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| 中文摘要: |
| 二点委夜蛾［Athetis lepigone (Mschler)］是2005年河北省首次发现报道的夏玉米苗期的新害虫，危害日趋严重。本文通过分析近年来对二点委夜蛾成虫的监测数据，研究其发生世代。结果表明:二点委夜蛾在河北省每年发生4代。4-5月为越冬代成虫期，6-7月上旬为1代成虫期，7月中旬-8月上旬为2代成虫期，8月中旬-9月下旬为3代成虫期。其中1~2代成虫蛾量大，蛾峰明显，以第2代幼虫为害玉米苗最为严重，越冬代成虫和第3代成虫蛾量较少，蛾峰不太明显。 |
| 英文摘要: |
| Athetis lepigone (Mschler) is a new insect pest of corn at seedling stage and reported first in Hebei Province in 2005. It becomes more serious in recent years. In order to study how many generations occur annually in Hebei Province, the adult monitoring data of A.lepigone in recent years were analyzed. Results showed that there are 4 generations of A.lepigone per year in Hebei Province. The durations for adults of overwintering genenation, 1st generation, 2nd generation and 3rd generations is from April to May, June to the beginning of July, mid July to early of August, and mid August to the end of September, respectively. Among different generation of adult occurrence, the amount of the 1st and 2nd generation adults are higher with obvious peak, but not the overwintering and 3rd generations. The damage made by the larvae of the second generation of A.lepigone at the summer corn seedling is the most serious. |
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