Winterkilling of codling moth larvae
Winterkilling of codling moth larvae
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DOI：
10.1093/jee/13.6.441
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发表时间：
1920-01-01
影响因子：
2.2
通讯作者：
Newcomer, EJ
中科院分区：
文献类型：
--
作者：
Newcomer, EJ
在春天发现”冬死”的苹果蠹蛾幼虫是一种常见的经历。然而，作者不记得看到过任何关于不同的死亡率百分比的报告。寒冷的天气准确的数字只能在控制温度的条件下才能获得，但是最近出现了一个机会，可以获得一些由自然条件引起的有趣的死亡率数字。在华盛顿州，1919年12月的气温远远低于正常值，亚基马和瓦拉瓦拉山谷的气温从华氏14度到华氏36度不等。在亚基马，12月9日和10日，有一场暴风雪，有点风，几乎是暴风雪的性质，两天的温度在7到16华氏度之间。11日，风暴放晴，最低气温0.在随后的四天里，温度如下：2
It is a common experience in the spring to find" winter-killed" codling moth larVal. The writer, however, does not remember seeing any fi/2: ureson the percentage of mortality resulting from different de {!; reesof cold. Accurate figures could be secured only under controlled temperature conditions, but an opportunity has occurred recently of obtaining some interesting figures of mortality resulting from natural conditions.In Washington State, temperatures far below the normal were experienced during December, 1919, ranging in the Yakima and Walla Walla valleys from _14 to-36 F. At Yakima, on December 9 and 10, there was a snowstorm with some wind, almost of the character of a blizzard, the temperature for the two days ranging between 7 and 16 F. The storm cleared away on the 11th, the minimum temperature being 0. For the succeeding four days, the temperatures were as follows: 2