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辛硫磷是一种高效、广谱、低毒、低残留的有机磷杀虫剂,对人畜毒性比敌百虫还低。辛硫磷在阳光下(?)分解,但以土壤处理、拌种等方式防治地下害虫,则有较长的残效期。据国外报道,用5％辛硫磷颗粒剂,按每公顷4公斤剂量作土壤处理,防治棉田小地老虎,25天内防治效果为96％。1974年,中国科学院植保所等单位,采用辛硫磷防治蝼蛄,效果很好。据此,1975年春播期间,我们进行了辛硫磷拌麦种防治华北蝼蛄的试验,1978年春又作了小面积示范防治。
Phoxim is an efficient, broad-spectrum, low-toxicity, low-residue organophosphate insecticide that is less toxic to humans and animals than trichlorfon. Phoxim decomposes in the sun (?), But with soil treatment, seed dressing and other ways to control underground pests, there is a longer residual period. According to foreign reports, with 5% phoxim granules, the dose of 4 kg per hectare for soil treatment, prevention and treatment of cotton fields to small tiger, 25 days prevention and control effect of 96%. In 1974, the Institute of Plant Protection and other units of the Chinese Academy of Sciences used phoxim to control chrysanthemum with good results. Accordingly, during spring sowing in 1975, we conducted a trial of phoxim mixed with wheat seeds for the prevention and control of Scabies in North China. In the spring of 1978, we conducted a small-scale demonstration of prevention and control.