1992年豌豆潜叶蝇在甘肃省永登县大发生。15.81万亩豌豆,1.23万亩胡麻和1.11万亩油菜受害严重,尤其是豌豆发生面积大,为害程度严重。据6月下旬在通远、民乐、武胜驿、坪城等乡(镇)多点调查:豌豆田虫田率100%,株被害率100%,叶被害率74.4%,平均每株有虫40.3头,平均每片托叶内有虫13.8头,最多26头。基部叶片的托叶受害最重,叶肉被 1992 pea leaf miner took place in Yongdeng County, Gansu Province. 158,100 mu of peas, 13,200 mu of flax and 11,100 mu of rape were seriously victimized, especially peas, with a serious damage. According to the investigation of Tongyuan, Minle, Wushengyi and Pingcheng townships in late June, the pea field was more polluted, the rate of pest was 100%, the rate of damage was 74.4% and the average number of pests was 40.3 per plant. On average, there are 13.8 worms inside each stipule, with a maximum of 26 heads. Stipules of basal leaves hardest hit, mesophyll was