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目前,预报绿盲蝽发生期,查卵难识别,查虫误差大,预报准确率低。我站自1981年起试用株害、花害期距法,预报绿盲蝽发生期,其优点是:①实感性强,准确率高。82年用一代新株害期距,预报二代新株害高峰为6月20～22日,实发为6月21～22日。用二代花害期距预报三代花害高峰为7月4～6日,实发7月4～5日。②方法简便,工效高。适用于“二查二定”的群众性测报与防治,并可结合查红铃虫虫害花测报一起进行。③可查当日株
At present, it is difficult to predict the occurrence of green bugs and oviposition, and the accuracy of check insects is large and the forecast accuracy is low. My station since 1981 to try strains, flower season method to predict the occurrence of Myzus persicae, its advantages are: ① real sensibility, high accuracy. 82 years with a generation of new plant damage period, forecast the second generation of new plant damage peak for the June 20 to 22, the actual hair for June 21 to 22. With the second generation of flowers and birds to forecast the three generations of flower peak season for the July 4 to 6, the actual July 4 to 5 days. ② method is simple, high efficiency. Apply to the “two check two” mass newspaper and prevention and control, and can be combined with the investigation of red bell pests insects Flower Report together. ③ check the date of strain