应用扫描昆虫雷达监测二代黏虫成虫

Monitoring on the Second-Generation Adult Armyworm by Scanning Entomological Radar

本研究旨在验证应用扫描昆虫雷达预测二代黏虫成虫发生的可行性,从而为吉林省三代黏虫成虫的有效治理提供参考依据。研究结果表明,在二代成虫的发生峰期,雷达的回波数量在20∶00和21∶00最多,雷达仰角增高,雷达的回波点减少。20:00的雷达观测时间点,仰角3°、5°、8°、12°的回波点数量之和,与诱蛾器、探照灯的数量变化趋势上趋同,可将此段时间的雷达监测结果作为二代黏虫成虫发生情况的预测数据指标。

To provide a scientific basis for control measures of the third-generation armyworm Mythimna separate （Walker） in Jilin Province, this study aimed to prove the feasibility for scanning entomological radar prediction on the second-generation armyworm. The results showed that the number of radar echo was high at 8 PM and 9 PM during the peak period of the second-generation armyworm. There was an inverse relationship correlation between radar echo and elevation. There was a positive correlation between number of the armyworm observed in trap, vertical pointing searchlight and the sum echo of elevation 3°, 5°, 8° and 12°. The result can be an effective data index for the second-generation armyworm prediction.