蚕用多霉净防僵粉研究

A STUDY ON "DUOMEIJING" ——A MUSCARDINE-PREVENTING POWDER FOR SILKWORM

多霉净500-1000ppm水溶液能有效地杀灭曲霉菌、白僵菌和灵菌等病原,配成0.5‰的防僵粉用于蚕体消毒,对白僵病和曲霉病的防治效果达93％以上,在蚕座中经48小时后防效仍可达50％,该药剂存放两年后的防效仍达85％。多霉净无刺激性气味、无腐蚀作用,对蚕毒性低,对结茧率、全茧量、茧层率、解舒、产卵量、卵质等均无不良影响,在生产上进行多霉净防病试验,结果表明,可控制夏秋蚕发病率在5％以下,张产茧增加3公斤以上。

This study indicated that the 500-1 000ppm solution of Duomeijing could effectively destroy the pathogenic fungi of silkworm; the 5 % powder of Duomeijing showed good and constant effect on silkworm rearing bed and its prevent effeciency on the fungi reached above 93% 。It's proved that this preparation has no stimulation and corrosion and no harm to silkworms in physiology and economic characters through oral and dermal toxity test。