豌豆潜叶蝇近年在豌豆上发生严重,幼虫蛀食叶肉,使叶片布满白色隧道,使提早落叶,影响结荚;也能蛀食嫩荚及花梗,使植株枯死。1990年种植面积30.2万亩,受害面积28.6万亩,损失554.8万多公斤。1990—1991年按照不同生态区域选择有代表性的豌豆田块,对6乡17村188户的豌豆田3190亩进行调查,受害面积2920亩,减产10％的占21.6％;减产15％的占23.5％;减产20％的占30.4％;减产25％的占14.7％;减产50％以上的占9.9％。1992年对豌豆潜叶蝇的发生发展规律、生活习性及防治方法进行了试验研究。 据田间多点观察,在会宁、靖远一带4月中下旬豌豆幼苗开始被害,表明此时已完成了成 Pea leafminers in peas in recent years, serious, larvae moss on the leaves, the leaves covered with white tunnels, so early leaves, affecting the pod; also can eat fresh pods and pedicels, the plants died. In 1990, the planting area was 302,000 mu and the affected area was 286,000 mu, with a loss of 5.548 million kilograms. 1990-1991 According to the selection of representative peas plots in different ecological regions, 3190 mu peas fields of 188 households in 6 townships and 17 villages were surveyed with the affected area of ​​2920 mu and the yield reduction of 10% accounting for 21.6%; the output reduction of 15% 23.5%, 20% reduction of 30.4%, 25% reduction of 14.7% and 50% reduction of 9.9%. In 1992, the occurrence and development of pea leaf miner, its living habits and methods of prevention and treatment were studied. According to the field more observations, in Huining, Jingyuan peas seedlings in late April began to be killed, indicating that at this time has been completed into