| It was significant for the creation of novel pesticide with our independent knowledge property right to search new insecticidal and antifungal plants , and guided by bioassay , to isolate and identify new compound from plants with up-to-date structure and particular insecticidal or antifungal activities against new targets. For this purpose, Ferula.ferulaeoidis was selected from 15 Xinjiang special herbs for insecticidal and antifungal activities and constituents research. Primary results were as follows:(1)The acetone extract from Ferula. showed strong contact and fumigation activity against the 3rd instar larvae of Mythimna separata Walker and Plutella xylostella Linnaeus ,JHA activity of acetone extract against pupae of Tenebrio molitor L. was also observed and evaluated ,The poison symptoms of tropically treated M.separata were observed, following a similar pattern of nerve poisoning: excitation, convulsion, paralysis, and death. The effect of acetone extract from Ferula.ferulaeoidis on the development and hatch of the eggs and survival of hatched larvae as well as ovicidal activity was observed and estimated.(2)Guided by bioassy of antifeedent activity, one constituent were isolated from Ferula.ferulaeoidis andamong which guaiol was the main insecticidal ingredient..(3)The bioassay of insecticidal activities of guaiol from Ferula.ferulaeoidis showed contact activity against the 4th instar larvae of M. separata and Plutella xylostella Linnaeus and fumigation activity against the 4th instar larvae of M. separata and the adults of Musca domestica Linnaeus with fumigation(4)The optimum technical conditions of supercritical fluid extraction(SFE) of essential oil ,by the design of including modifier volume, temperature, pressure and volume of CO2 and comperation to insecticidal activity of essential oil obtained by SFE and hydrodistillation were studied.(5)Ferula.ferulaeoidis and essential oil of Ferula.ferulaeoidis showed obvious inhibiting effect in vitro on some phytopathology fungi including Fusarium oxysporum f.sp.vasinfectum, et al.(6)The prospects of research and development of Xin Jiang special plants for relieving exterior syndrome are bright. |