【摘要】 对麦盖提垦区二代棉铃虫现行化防指标进行了探讨。认为现行化防指标过严 ,没有充分考虑大面积化学防治后蚜虫的反弹及天敌的控害作用 ,不利于协调治理棉铃虫和棉蚜化防时的矛盾。用经济学原理分析认为 ,充分发挥天敌对害虫的抑制作用 ,适当放宽化防治标 ,使二代棉铃虫化防指标为2 0～ 2 5头较宜 ,并制定了方便可行的决策表更多还原

【Abstract】 The paper discussed that the chemical prevention target of cotton bollworm F 2.The authors considered that the present chemical prevention target is too strict,without considered aphides bounce and function of natural enemy’s control after a large area with chemical prevention It is disadvantageous to correspondingly manage the contradiction between cotton bollworm and aphides.Using economical theory,we considered that the chemical prevention target of cotton bollworm F 2 had better control 20～25 bodies and work out the convenient and practical strategy table.\;更多还原