Antifungal activity of some essential oils and their major chemical constituents against some phytopathogenic fungi

Document Type : Original Article

Authors

Pesticide Chemisuy Dept., Fac. of Agric.(Chatby), Alex. univ.

10.21608/jpces.2004.459502

Abstract

In vitro studies were carried out to determine the antifungal activity of fifteen essential oils, caraway, clove, thyme, chenopodium, cinnamon geranium} rosemary, matrecary, rose, dill, garlic, eucaiyptu,s lemon and peppermint and their monoterpenoidai constituents against six plant pathogenic fungi (Rhizoctonia solani, Macrofomina phaseolina, Eusarium oxysporum. Helminthosporium sp, Alternaria alternate and Diplodia sp)). The resuits revealed that caraway, clove, fennel, and thyme oils exhibited potencies to inhibit the growth of the tested fungi. The joint action for the most promising essential oils With piperonyl butoxide, tween 20 and triton X-100 was studied. The antifungal activity was dramatically enhanced against all the tested fungi, particularly in case of clove oil with triton X-100 mixture which proved to be the most effective one. Among the monoterpenoidal constituents, thymol, chlorothymol and carvacrol showed the highest fungicidal activity compared with the other essential oil components used.

Keywords

Journal of Pest Control and Environmental Sciences
Volume 12, Issue 1
2004
Pages 61-72

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