【摘要】 总结了白湖圩区８０年代以来水稻螟虫为害波动情况：为害主次变化，不同世代特点，世代重叠，为害代数增加，侵入部位上移，转株率增大，抗药性提高，以及种植方式的改变对为害波动起了一定作用等。通过试验提出，利用全代化蛹率预测螟虫的发生情况及“狠治１代，重治２代，注意３、４代发生动态”的防治策略。更多还原

【Abstract】 This paper reported the state of damage and fluctuation of rice plantborer in Baihu area from 1980’s to 1990’s.The result showed that the fluctuation and damage of rice plantborer was decisively influenced by rice plantborer variation,the characteristics in different generations,generation overlap,the increasement of damage generation,the change of invarision part, high rate of plantborer transfer, the improvement of its resisfance to insecficide and the change of planting ways.This paper dealt with population prediction for the occurrence of rice plantborer by the way of generation population rate and put forward control tactics,i.e to fiercely control the first generation,heavily control the second generation and to pay attention to the occurrence dynamics of the third and fourth generation.更多还原