江苏通州杨树枝把诱集棉铃虫成虫的数量与月相的关系

经常规及圆形统计分析 ,结果表明江苏省通州市 1 973～ 2 0 0 0年棉铃虫杨树枝把诱蛾量 (相对量 ,%)受到月相的显著影响。单日比较 ,农历 1 5日蛾量最高 ,3 0日最低 ,前者是后者的 4倍。按 3d时间分段 ,1 3～ 1 5日蛾量最高 ,2 2～ 2 4日最低。按旬分 ,中旬最高 ,下旬最低。按半月分 ,上半月高于下半月。以上差异均达极显著水准 (P <0 0 1 )。圆形分析表明全月蛾峰集中角对应时间为 1 1日 1 1时 3 4分。这些日期都在月满稍前。

Relationship between lunar phase and capture rate of cotton bollworm moths using poplar twig bundle traps in Tongzhou, Jiangsu Province

Regular and circular analyses indicate that lunar phase had a significant relationship with the relative numbers (%) of cotton bollworm moths caught by poplar twig bundles in Tongzhou City, Jiangsu Province in 1973～2000. In a lunar month, the highest and lowest daily catches occurred on the 15th and 30th of the month, respectively, the former being 4 fold higher than the latter. Over a 3 day period, catches on days 13～15 and 22～24 were ranked the highest and lowest, respectively. The highest capture rate also occurred in the second 10 days and the lowest in the last 10 days of each month, and catches in the first half of the month were higher than in the last half. All these differences were highly significant ( P <0 01). The mean angle of the catch peak corresponded to 11:34 on day 11. This indicates that the maximum catch was achieved just before the full moon.