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1害虫发生的成因及特点1.1圃地土壤的质地、含水量蛴螬发生在地下水位较高,土壤湿度较大的地方;地老虎在沙壤土上发生量较大;金针虫在有机质丰富的土壤中危害最重。1.2土壤的温湿度
The causes and characteristics of a pest occurrence 1.1 The quality and soil water content of the soil in the nursery garden occurs in places where the groundwater level is higher and the soil moisture is larger. The earth tiger occurs more in sandy loam soil. The golden needle insect pests in the soil rich in organic matter The heaviest. 1.2 soil temperature and humidity