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烟酰苯胺的盐酸盐和硫酸盐溶液对钉螺在25℃作用24h的LC_(50)和LC_(90)分别约为0.3mg/L和0.5mg/L。在实验室和现场,以1—2mg/L浓度浸泡钉螺3d,可杀死90％以上钉螺;1—2g/m~2剂量喷洒,在20℃以上,钉螺接触1—3d的死亡率为18.4—100％。该药对早期(细胞期)钉螺卵有高效,对中期卵和后期卵无明显效果。对鳙鱼和麦穗鱼的LC_(50)为200mg/L。白鲫和草鱼在10mg/L浓度中1个月无死亡。小鼠口服急性LD_(50)约为2g/kg。以1—2g/m~2喷洒对植物无明显影响,≥5g/m~2时部分叶子枯萎,双子叶植物的反应尤为明显。在群众性灭螺中,接触烟酰苯胺可湿粉频繁者曾发生皮炎。
The LC 50 and LC 90 of the nicotinamide hydrochloride and sulfate solution on snails at 25 ℃ for 24 h were about 0.3 mg / L and 0.5 mg / L, respectively. In laboratory and field, soaking snail 3d at the concentration of 1-2mg / L can kill more than 90% of the snails. The spraying rate of 1-2g / m ~ 2 is above 18 ℃, and the mortality of snails 1-3d is 18.4 -100%. The drug on the early (cell stage) snail eggs efficient, no significant effect on the mid-term eggs and late eggs. The LC 50 of anchovy and stingray was 200 mg / L. White carp and grass carp in 10mg / L concentration in 1 month without death. The oral LD50 of mice is about 2g / kg. Spraying 1-2g / m ~ 2 had no significant effect on the plants, and some of the leaves wilted at ≥5g / m ~ 2, the reaction of dicotyledons was especially evident. In mass snail control, contact with nicotinamide wettable powder frequent dermatitis.