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(1)蝼蛄:种类为非洲蝼蛄,其密度有时高达到3只/平方米,主要咬食播下的种子和幼苗。若不进行防治,可将整畦种子和幼苗吃光,或将表土钻松,使菜苗因失水而枯死。过去采用甲胺磷处理床土,近几年则改用播种后撒施3%的米乐尔颗粒剂加以防治,施用量每平方米2.3～2.5g左右。撒后盖土、浇水、盖膜,第2～4天中每天将畦沟中的膜掀起人工捕捉半死不活的蝼蛄,防效可达95%以上。(2)蚜虫:一般于2月下旬至3月少量发生,可用10%
(1) 蝼 蛄: Species of African 蝼 蛄, its density sometimes up to 3 / sq m, the main bite sowing seeds and seedlings. If not for prevention and treatment, the seeds and seedlings can be eaten light, or loose topsoil, so that seedlings die of water loss. In the past methamidophos treatment of bed soil, in recent years switched to sowing 3% after the application of Michel granules to prevent and control, the application rate of about 2.3 ~ 2.5g per square meter. Caesar soil cover, watering, cover the film, the day 2 to 4 days in the furrows of the film set off artificial capture half-dead moat, control effect of up to 95%. (2) aphids: usually in late February to March a small amount, available 10%