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作者于1980年3～4月和7～8月间,在青海省天峻县和门源县草甸草原牧场进行了新杀鼠剂大隆杀灭我国西北草原主要害鼠—高原鼠兔(Ochotonacurzoniae)、中华鼢鼠(Myospalax fontanieri kukunoriensis)的试验研究。大隆对鼠兔的LD_(50)为0.1380mg/kg(0.1192～0.1568mg/kg),对鼢鼠的LD_(50)为0.4388mg/kg(0.2742～0.7022mg/kg)。 0.015％、0.030％和0.060％三种浓度大隆毒饵对鼠兔的现场灭效均达90％以上。一系列试验证明,大隆对草原害鼠的毒力强,使用浓度低,适口性好,无明显的耐药性,对天敌的危害性小。作者认为大隆可以应用于草原灭鼠,并可能有较好的前景。
From March to April 1980 and from July to August 1980, the author conducted a new rodenticide Dalong in Tianjun pasture of Tianjun County and Mengyuan County of Qinghai Province to kill the main harmful rat - plateau pika in Northwest China’s grassland Ochotonacurzoniae, and Myospalax fontanieri kukunoriensis. The LD50 of Dalong pair was 0.1380mg / kg (0.1192-0.1568mg / kg), while the LD50 of the rats was 0.4388mg / kg (0.2742-0.7022mg / kg). 0.015%, 0.030% and 0.060% Dalong bait on the rabbit off-site efficacy of more than 90%. A series of tests have proved that Dalong has strong virulence on grassland pest rats, low concentration, good palatability, no obvious resistance and little harm to natural enemies. The author believes Dalong can be used in grassland rodent control, and may have a better future.