陕西省榆林专区各县,年年均有土蝗零星发生,为害秋怍物,但不十分严重,往往为人们所忽视。据调查访问于1946年在县境内西南部的郝渠子等地曾发生转重,但以1960年8月下旬发生最为猖獗。该年全县17个人民公社中,就有13个公社严重发生。其中以县境南部的席麻湾公社和杨米界公社发生最甚。曾为害牧草以及谷子、荞麦,造成减产。 All counties in Yulin Prefecture, Shaanxi Province, there are sporadic locusts occur sporadically every year, the damage autumn 怍 things, but not very serious, often overlooked by people. According to a survey that visited places such as Haoqunzi in the southwestern part of the county in 1946, heavy losses occurred but were most rampant in late August 1960. In the year 17 people’s communes in the county, there are 13 communes serious. Among them, Xi Mawan commune and Yangmi commune occurred south of the county. Had for the pasture and millet, buckwheat, resulting in reduced production.