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从棉花栽培上来看,促进苗期发育是增产主要环节,但一系列技术管理措施均必须在治蚜的胜利基础上来进行。因此治蚜是棉花增产关键问题之一,这的确是广大棉区目前迫切需要解决的问题,为了掌握其发生规律与防治关系,河北省农场,曾进行3年调查研究,根据几年的积累资料,作了一个粗放的总结分析如下,以供各地同志们参考,共同探讨此问题以改进我们工作方法,达到战胜棉蚜害,保证棉花丰收的目的。一、一般发生规律:1.全年发展过程:根据1953年调查及各基点了解情况,其全部发生过程,可分为5个阶段。(1)孵化转移阶段:3月上、中旬(惊蛰前后)杂草根部的蚜卵开始孵化繁殖,3月下旬,4月上旬
From cotton cultivation point of view, to promote seedling development is the main part of production increase, but a series of technical management measures must be based on the victory of aphids governance. Therefore, the treatment of aphids is one of the key issues of cotton yield increase, which is indeed an urgent need to solve the problem in the vast cotton area. In order to grasp the relationship between its occurrence and prevention and control, Hebei Province Farm had conducted a 3-year investigation and study and accumulated data according to several years , Made a rough summary of the following analysis for reference for all local comrades to jointly explore this issue to improve our working methods to achieve victory over cotton aphid to ensure the cotton harvest. First, the general law of occurrence: 1. The development process throughout the year: According to the 1953 survey and the basic point of understanding of the situation, all of its occurrence can be divided into five stages. (1) Incubation stage: the aphid eggs in the roots of weeds began to hatch in the middle and middle of March (before and after the jingles), and in late March and early April