人工合成储粮保护剂——β-水芹烯对几种储粮害虫作用的研究

The toxicity of Synthetic β-Phellandrene on someStored-grain Insect Pests

人工合成β－水芹烯对谷蠹、玉米象、米象均有较好的毒杀效果。拌粮法处理剂量为０．３３２％时可全部杀死谷蠹成虫，处理剂量为０．６６４％时可杀死上述３种试虫的成虫。剂量在０．１６６％以上时即可完全抑制谷蠹的繁殖，剂量０．３３２％以上时即可完全抑制玉米象、米象的种群发育。对杂拟谷盗的点滴结果表明，其ＬＤ５０＝１．１８０μｌ／头，对它的种群发育也有一定的抑制作用，并有延缓其发育的作用。

ynthetic β-phellandrene has a better level of toxicity on Rhizopertha dominica.Sitophilus zeamais and Sitophilus oryzse.Admixtrue application in wheat grain at a dose of 0.332% obtained complete kill of adult R.dominice.admixed dose of 0.664% gave complete kill of adulte of above mentioned three species.the reproductive capacity of R.dominica was fully inhibited at doses higher than 0.166%.While at doses higher than 0.332%,the development of S.zeamais and S.oryzae was completely inhibited.The result of topical application test showed that the LD50 of Triboliumconfusum was 0.180/insect.β-Phellandrene also showed a fairly high effect of delaying development and suppressing the population growth of T.confusum.