Study on the Occurrence Dynamics of Corn Borer Adults in the Ili RivverValley
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摘要: 为明确新疆伊犁河谷的玉米螟发生动态,本研究连续4年(2017—2020年)在玉米制种田采用专用性诱剂和测报灯,对玉米螟种类和成虫发生动态进行调查和监测.结果表明,伊犁河谷玉米生产基地是以亚洲玉米螟为害为主的亚欧混生区,一年发生2~3代,越冬代成虫发生高峰期在6月上旬至7月上旬,一代成虫发生高峰期在7月下旬至8月下旬,发生不整齐,世代重叠.研究结果为玉米螟的精准预测预报和有效防治提供了参考.Abstract: In order toprovide a theoretical basis for the precise prediction and effective control of corn borer (Ostrinia nubilalis) in the Ili river valley,the occurrence dynamics of corn borer species and adultswas investigated and monitored in the corn seed farm using specific sex attractant and detector light for four years from 2017 to 2020.The results showed that the Ili valley was an Asia-Europe mixed corn borer area, withthe Asian corn borer as the dominant population. Two or three generations of corn borer occurred in a year. The peak of adults in the overwintering generation was from early June to early July, and the peak of adults in the first generation was from late July to late August, with irregular occurrence and overlapping generations.
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Key words:
- Ili river valley /
- corn borer /
- occurrence dynamics .
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