油菜是我省重要的冬季油料作物。但近年豌豆植潜蝇为害日趋严重,成为油菜生产上的重要障碍。我们进行了两年的观察,现将结果简报如下。 一、为害情况 豌豆植潜蝇Phytomyza horticola Goureau(以下简称潜蝇)以幼虫潜入油菜叶片内,啃食叶肉,受害叶片很快枯黄脱落,菜籽不饱满,出油率减少。我县大面积油菜被害严重,如1982年4月在湖区天成垸调查,甘蓝型叶片被害率 Rape is an important winter oilseed crop in our province. However, in recent years peas, leaf miner damage increasingly serious, become an important obstacle in the production of rape. We have observed for two years and now we have a brief summary of the results. First, the damage situation Pea Phytomyza horticola Goureau (hereinafter referred to as the miner) to larvae sneak into the rape leaves, eating the leaf meat, the victim leaves quickly turn yellow off, rapeseed is not full, the oil rate decreased. Large area rapeseed was severely victimized in our county, such as the investigation of the Tiancheng embankment in the lake area in April 1982, the rate of killing of the cabbage-type leaves