【作者】 马承惠；

【导师】 迟德富； 杨国亭； 于学军；

【作者基本信息】 东北林业大学 ， 林业， 2003， 硕士

【摘要】 木醋液是从木材烧炭过程中，提取的天然液体。具有杀虫、驱虫、灭菌、促进植物生长之功效。 本试验采用木醋液与杀虫植物超声波提取物配制成杀虫剂，对油松毛虫害的防治效果很好。 其中：以水为溶剂，超声波抽取仪，提取白屈菜植物活性物质制成的杀虫剂，防治油松毛虫约虫的死亡率达60％。 以水为溶剂，用超声波抽提仪，提取大活植物活性物质加木醋液配制成的杀虫剂和提取萹蓄蓼植物活性物质加木醋液配制成的杀虫剂，防治油松毛虫幼虫的死亡率均达到86.67％。 效果最好的是以水为溶剂，用超声波抽提仪，提取狭叶荨麻植物活性物质加木醋液配制成的杀虫剂，防治油松毛虫幼虫的死亡率达100％。 上述植物杀虫剂均为无公害生物杀虫剂。具有保护天敌、促进植物生长、不污染环境等特点。更多还原

【Abstract】 Pyrohgr.eous acid is a kind of natural medicament. which has a lot of function. In this experiment the mixture of liquid wood vinegar and ultrasonic extractions made from insecticidal plants have been used as pesticides in the controlling of Dendrolimus tabulaeformis Tsai et Liu larvae. The results shown that those extracts made by supersonic wave extracting apparatus using water as solvent were highly effective to control D. tabulaeformis Tsai et Liu Among those self-made pesticides, the mixture of wood vinegar with the extracts made from Urtica angustifolia Fisch. was the best in the control of D. tabulaeformis Tsai et Lu. The mortality rate of those larvae treated by this mixture was up to 100%. The pesticide containing wood acid and extracts made of Polygonum avicu’are L was also very effective. The mortality of treated larvae was more than 86.6%. The mixture composed of wood vinegar and extracts made of Angelica dahurica (Fisch.ex Hoffm.) benth.et Hook.f. or extracts made of Chelidonium majus L. were also very effective in the control of D. tabulaeformis Tsai et Liu, those larvae treated by those pesticides were more than 86.67% and 60% respectively. The functional mechanism of those self-made pesticides was stomach poison. so they have no side effect on plants.The results from these experiments shown that those compounds which have pest killing effect could be solvated in water, so the extracts solvated in water were more effective than those solvated in ethanol. Using water to extract those poison cornpounds can reduce the cost and increase the economic benefit.Those plants used in the making of pesticides have larger natural resources in our country and they could be easily cultivated.更多还原