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本文系根据1950—1962年的部分研究结果。从红铃虫各期虫态发育与温湿度关系、食料对幼虫生长发育的影响、以及幼虫滞育的一些有关生态特性,来探讨它的发生规律。根据分析:西北无虫区的原因,主要是受冬季低温强度大,夏季温差大,湿度低的限制,红铃虫既不能越冬,又不能繁殖;已感染的地区,根据红铃虫的有效繁殖日数,可以划分为四个世代类型:即二代区、二三代区、三四代区和多代区。关于红铃虫数量变动原因,与发生基数、气候条件和繁殖期的食料条件关系最为明显。与此同时,也指出了不同地区控制红铃虫种羣数量的途径。
This article is based on some of the findings from 1950 to 1962. The relationship between insect development and temperature and humidity in different stages of red bollworm, the effects of foodstuffs on the growth and development of larvae, and some related ecological characteristics of larvae diapause were discussed to investigate its occurrence. According to the analysis, the reason for the no-insect zone in the northwest is mainly due to the high temperature in winter, large temperature difference in summer and low humidity. The red bollworm can neither overwinter nor multiply. In the infected area, according to the effective breeding The number of days can be divided into four generations: the second generation, the second generation, the third generation, the fourth generation and the multigenerational district. The reason for the change of the number of pink bollworm is the most obvious with the occurrence of the base, climatic conditions and breeding conditions of foodstuffs. At the same time, it also points out the ways to control the population of Red Ginseng in different areas.