Studies on the cold-hardiness and overwintering of Spodoptera litura F (Lepidoptera: Noctuidae) .6. Possible overwintering areas predicted from meteorological data in Japan
Studies on the cold-hardiness and overwintering of Spodoptera litura F (Lepidoptera: Noctuidae) .6. Possible overwintering areas predicted from meteorological data in Japan
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DOI：
10.1303/aez.32.167
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发表时间：
1997-02-01
影响因子：
1.3
通讯作者：
Naito, A
中科院分区：
文献类型：
--
作者：
Matsuura, H;Naito, A
根据室内和田间试验结果，确定了斜纹夜蛾幼虫越冬所需的三个指标，以预测斜纹夜蛾在日本的越冬区。第一个标准是冬季的日最低气温高于零下5摄氏度，这是幼虫的致命低温。另一方面，已知幼虫需要超过0.9度日（DD）的日有效发育温度（DET）。这个必要的DET是根据每天的寒冷强度和零下温度的持续时间来决定的。通过从实际DET中减去必要的DET来计算每天幼虫长期存活的剩余或不足的DET。因此，第二个标准总结如下：冬季（12月15日至3月15日）累积盈余DET大于或等于累积不足DET。第三个标准是DET不足的连续天数不超过30天，这三个标准是越冬所必需的。斜纹夜蛾幼虫发生。在此基础上，对该虫的越冬区进行了初步研究。根据上述三个标准，通过分析自动气象数据采集系统（AMeDAS）的温度数据，对日本斜纹夜蛾进行了预测。
Three criteria necessary for larval overwintering of Spodoptera litura were determined from the results of laboratory and field experiments in order to predict the overwintering areas of this insect in Japan. The first criterion is for the daily minimum temperature in winter to be higher than -5 degrees C, which is the lethal low temperature of the larvae. On the other hand, larvae are known to require a daily effective temperature for development (DET) of more than 0.9 degree-days (DD). This necessary DET is decided in accordance with cold intensity and duration of sub-zero temperatures per day. surplus or deficient DET for long term survival of larvae per day was calculated by subtracting the necessary DET from the actual DET. Consequently, the second criterion is summarized as follows: cumulative surplus DETs greater than or equal to cumulative deficient DETs in winter (Dec. 15th to Mar. 15th). The third criterion is for the number of consecutive days with deficient DET to be 30 or less. These three criteria must be met in order for overwintering of S. litura larvae to occur. The likely over-wintering areas of S. litura in Japan were predicted by analyzing temperature data of the Automated Meteorological Data Acquisition System (AMeDAS) on the basis of the three criteria mentioned above.