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两年来用有机汞消石灰混合粉防治馬鈴薯晚疫病的田間試驗获得了显著的效果。在发生中心病株时开始用1:9西力生消石灰或賽力散消石灰每7天撒佈1次,共撒4—5次可以大大地抑制病害的蔓延,从而提高产量。西力生和賽力散的防病效果相近。填充剂的比較上,滑石粉远逊于消石灰。石灰的鈣素或碱性不影响汞化物的杀菌力。抑制孢子囊萌发的有效浓度的室內测定,得到的抑菌力強度順序为西力生(折成氯化乙基汞)>賽力散(折成醋酸苯汞)>硫酸銅。LD50各为0.02、0.058、0.15 ppm。温室接种試驗指出有机汞粉剂經水冲洗后防病作用下降。
In the past two years, a field trial of organic mercury hydrated lime mixed powder against potato late blight has yielded significant results. In the case of the center of diseased plants began to use 1: 9 Xi Lisheng slaked lime or salal scattered lime once every 7 days, a total of 4-5 times can greatly inhibit the spread of disease, thereby increasing production. Xi Lisheng and Sai Li San anti-disease effect is similar. Comparison of fillers, talc far less than the slaked lime. Lime calcium or alkaline does not affect the germicidal mercury. Inhibition of spore germination of the effective concentration of the indoor test, the inhibition of the order of strength of antimicrobial force Xi Li Health (folded into ethyl mercuric chloride)> Saracenic (folded into phenylmercuric acetate)> copper sulfate. LD50 each 0.02, 0.058, 0.15 ppm. Greenhouse inoculation tests showed that the organic mercury powder decreased after water rinse.