我们知道害虫的早发生和大发生是与自然界因子和客观环境因子有密切关系的,下面谈谈槁城五区棉红蜘蛛早发生和大发生的原因。一气候因子去冬气候温暖,今春春雨不大而且比较晚,前者给棉红蜘蛛造成安然过冬的有利条件,后者是适应了棉红蜘蛛喜好干旱的生活习性。也就是说,在温度上、湿度上都给它造成了发生、发生早的先决条件。二地势和土壤 We know that the early occurrence and occurrence of pests are closely related to natural factors and objective environmental factors. Next, we will discuss the reasons for the occurrence and occurrence of cotton spider mites in Gaocheng five districts. A climate of warm weather last winter, this spring is not big rain and late, the former gives the spider mite cause favorable winter conditions, the latter is adapted to the habit of cotton spider mimic drought. In other words, temperature and humidity have caused it to occur, the precondition for the early occurrence. Two topography and soil