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为了明确晋南棉花苗期地下害虫优势种类及为害的情况,采用“Z字型十点”挖土取样法、性诱剂诱捕法、田间调查法,在棉花播种前调查棉田地下害虫的种类和数量,在棉花苗期3~6叶期,研究地下害虫优势种类对棉苗的为害情况。结果表明,金针虫、蛴螬、地老虎是棉花苗期地下害虫优势种类;不同地块、土壤类型、前茬和管理措施均对地下害虫有明显的影响。
In order to clarify the dominant species and damage of underground pests in Jinnan cotton seedling, the method of “Z-shaped ten-point” digging soil sampling, sex trapping trapping method and field survey method was used to investigate the underground pests in cotton fields before sowing cotton Species and quantity of cotton seedlings in 3 to 6 leaf stage, the dominant species of underground pests damage to cotton seedlings. The results showed that the golden worm, emu, and tiger tiger were the predominant species of underground pests at cotton seedling stage. Different land plots, soil types, pre-stubble and management measures had obvious effects on underground pests.