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通过毒死蜱、硅白灵和白蚁灵等白蚁防治新药剂对白蚁的毒力测定及野外土壤处理试验等 ,研究这几种药剂对白蚁的药效。结果表明 ,试验药剂对白蚁均具有较好的毒杀作用 ,经药剂处理过的土壤对白蚁有明显的防治效果。经质量分数为 5 0～ 2 0 0g·kg-1毒死蜱处理过的土壤在暴露及防淋避光条件下均有明显的防治白蚁效果 ,其持效期在 6a以上 ;经质量分数为 0 31 2 5～ 2 50 0 0g·kg-1白蚁灵处理过的土壤对白蚁的防治效果与质量分数呈正相关 ,其中质量分数 2 50 0 0g·kg-1的白蚁灵的防治效果至少可达 7a以上。表 5参 8
The toxicity of termites against chlorpyrifos, silibinin and termiticide against termites and the treatment of field soil were studied to study the efficacy of these agents on termites. The results show that the test agents have a good toxic effect on termites, the treated soil has a significant control effect on termites. The soil treated by chlorpyrifos with mass fraction of 50 ~ 200 g · kg-1 had obvious anti-termite effect under exposure and anti-avoidance light conditions, with a persistence of over 6 years. The mass fraction was 0 31 The control effect of termiticide on termites was positively correlated with the mass fraction of termiticide in 25-50 kg · kg-1 termiticide, and the control efficacy of termiticide at the mass fraction of 2 500 g · kg-1 was at least above 7a . Table 5 Reference 8