八种防霉剂对橡胶木和竹材霉菌及蓝变菌的毒性试验

霉菌和蓝变菌是橡胶木和竹材变质的主要原因之一。八种防霉荆对上述木竹材霉菌及蓝变菌的毒性试验结果表明：祛霉乐防霉剂对霉菌的最低抑制浓度为２～１０ＰＰｍ，和ＭＥＣＴ相当，对蓝变菌有特效，防治橡胶木或竹材霉菌和蓝变菌的最低有效浓度为０．２％，可替代五氯酚钠和进口防霉剂。

Laboratory evaluation of eight chemicals as anti-sapstain and anti-mold agents for rubber wood and bamboo

In themes of environmental pollution and toxicity,chlorinated phe-nols used in wood industry will not be allowed to use in the near future,although their efficiency in controlling sapstain, mould and decay fungi issuperior to others.It is great important to search new chemicals which are ofPotential to prevent from attacking of fungi on rubber wood and bamboo.Ei-ght chemicals,evaluated for controlling this fungi in the laboratory.In con-trolling sapstain fungi(Botryodiplodia theobromae Pat.)of rubber wood spec-imens,the inhibition concentration TMO is 0.2%,NaPCP 0.5%, MECT over1%,whereas0.4%of Cu-8 and 0.1% of TBZ are ineffective. In controllingmould fungi of rubber wood and bamboo specimens, effectiveness of TMO isas good as MECT, better than TBZ, NaPCP. Due to high efficiency, low con-centration, low cost and no pollution,TMO is expected to replace chlorinatedphenols such NaPCP.