botanical insecticide造句

• Mechanistic studies of botanical insecticides
  植物源杀虫剂作用方式和机理的研究进展
• Advance in the study on natural botanical insecticide azadirachtin
  天然植物杀虫剂印楝素的研究进展
• Resources of wild botanical insecticides in western of jilin province
  吉林省西部地区野生杀虫植物资源调查
• Using nicotinamide , a botanical insecticide , for controlling dendrolimus punctatus
  烟碱防治马尾松毛虫初报
• Botanical insecticides are plant derivatives , and can be more toxic than some synthetics
  植物杀虫药来自于植物加工，并且毒性可以大于人工合成化学品。
• Natural pyrethrins is a botanical insecticide made from extracts of chrysanthemum flowers while pyrethroids such as s - bioallethrin , cypermethrin , permethrin and cyfluthrin are its synthetic chemical analogues
  天然除虫菊素是一种从菊花提炼的植物性杀虫剂，而拟除虫菊酯是类似天然除虫菊