Composite disinfectant for silkworm rearing instrument in silkworm rearing room as well as preparation method and application of composite disinfectant

The invention discloses a compound disinfectant for silkworm rearing rooms and rearing instruments and a preparation method and application thereof.The compound disinfectant is prepared from, by weight, 0.01%-0.50% of trimethonium chloride, 0.05%-1.00% of sodium carbonate, 0.05%-0.25% of disodium hydrogen phosphate and the balance purified water, and an aqueous solution is obtained by mixing and dissolving the components. The composite disinfectant has a good killing effect on common silkworm pathogens such as silkworm nuclear polyhedrosis viruses, microparticle spores, beauveria bassiana and prodigiomycetes of silkworm rearing rooms and rearing instruments, has no corrosion effect on the silkworm rearing rooms and the rearing instruments, is good in stability and free of irritation to human bodies, belongs to an environment-friendly disinfectant, and is suitable for being widely applied to sericulture production. 本发明公开了一种用于蚕室蚕具的复合消毒剂及其制备方法和应用，复合消毒剂以重量百分含量计，包括月苄三甲氯铵0.01～0.50％，碳酸钠0.05～1.00％，磷酸氢二钠0.05～0.25％，其余为