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新烟碱类药剂用于厚芯胶合板防白蚁可行性研究
高婕, 马红霞, 李兴伟, 陈利芳
广东省森林培育与保护利用重点实验室/广东省林业科学研究院
摘要:
新烟碱类药剂是全球最大的一类植物源杀虫剂。文章研究了第一代新烟碱类药剂吡虫啉、噻 虫啉和第二代新烟碱类药剂噻虫嗪对家白蚁的毒性,探讨了 3 种药剂用于厚芯胶合板防白蚁的可行性。 研究结果表明,噻虫嗪和噻虫啉对家白蚁 Coptotermes formosanus 毒力高于吡虫啉; 3 种药剂在 140 ℃以 下具有良好的热稳定性,采用单板预处理方式,对板材胶合性能无显著影响( P<0.05), 3 种药剂浓度 9.6 mg/kg 即可提升板材防白蚁蛀蚀等级至 10 级。
关键词:  吡虫啉  噻虫啉  噻虫嗪  厚芯胶合板  白蚁防治
DOI:
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基金项目:
Effect of Neonicotinoid Pesticides on the Termite Resistance of Thick-core Plywood
Gao Jie, Mahongxia, Lixingwei, Chenlifang
Guangdong Provincial Key laboratory or Silviculture, Protection and Utilization/Guangdong Academy of Forestry
Abstract:
Neonicotinoid pesticides is the largest type botanical pesticides in the world. Pyrimethanil and thiacloprid as the first generation of neonicotinoid pesticides and thiamethoxam as the second generation of neonicotinoid pesticides are studied on the toxicity of termite, and the termite resistance effect of thick-core plywood treated by the neonicotinoid pesticides are explored. Results show that thiacloprid and thiamethoxam have greater toxicity than pyrimethanil on termite; all of the three tested pesticides have good thermal stability under 140 ℃ , and can be used as termite-killing agents for thick-core plywood. Plywood with agent concentration of 9.6 mg/kg, has good physical-mechanical properties and its termite resistance grade is from 6 up to 10.
Key words:  pyrimethanil  thiacloprid  thiamethoxam  thick-core plywood  termite resistance