秋播季节将至,为了保证小麦全苗,力争明年夏季丰收,防治地下害虫是重要的技术措施之一。 我国冬小麦主要产区的黃、淮地区,常因地下害虫为害,造成小麦缺苗断垅,严重的甚至需毀种重播。这一地区的地下害虫种类有蝼姑、蛴螬、金针虫等,而以蝼姑发生最普遍。蝼姑多发生在疏松、潮湿地区,如砂壤土、低湿地、盐碱地等,一般盐碱地发生数量很多,群众有“碱地蝼姑双胞胎”之说,这主要是因盐碱地的地下水位较高,土壤湿润,同时耕作也较粗放,杂草较多,这都有利于蝼蛄的发生和繁殖。蛴螬在低湿粘重的土壤发生很多,如苏北、皖北、河南等地发生比较严重。金针虫则发生在豫西、豫南及晋南等地。较干旱地区,以沟金针虫为主,尤以粉砂壤土或粉砂粘壤土上发生 Autumn seasons approaching, in order to ensure wheat seedlings, and strive to harvest next summer, the prevention and treatment of underground pests is one of the important technical measures. The main producing areas of winter wheat in China, the Yellow River, Huai area, often because of underground pests, resulting in lack of broken wheat seedlings, and even serious need to replay. Underground pests in this area include kudu, emu, pinworms and the like, while nudity occurs most commonly. Mostly in the loose, wet areas, such as sandy loam, low wetlands, saline land, the general occurrence of a large number of saline and alkali soil, the masses have “alkaline Shu twins,” said, mainly due to the high groundwater level in saline and alkali soil Moist, at the same time tillage is also more extensive, more weeds, which are conducive to the occurrence and reproduction of flies. Slugs occur in a lot of sticky soil with low humidity, such as northern Jiangsu, northern Anhui, Henan and other places more serious. Golden worm occurs in western Henan, southern Henan and southern Shanxi and other places. In the more arid areas, Gingerworm mainly dominated, especially on silty loam or silty clay loam