2015 Vol. 21 No. 2 PP 165­-167

MANAGEMENT OF LINSEED WILT BY CERTAIN ESSENTIAL OILS

UDAI BHAN SINGH, S.P. SINGH AND K.P. KAMTHAN^*

Department of Botany,
P.P.N. College, KANPUR­208001
*Department of Botany,
D.A.V. College, KANPUR­208001
E­mail: ub.singh29@gmail.com

Abstract

The essential oils of ten Angiosperm plants species including herbs, shrubs and tree; extracted by Clevenger Hydrodistillation method. Three different concentrations of oil (250 mg/ml, 500 mg/ml and 1000 mg/ml) were screened for linseed wilt pathogen (Fusarium oxysporum f. sp. lini). All were effective in inhibiting the growth of the pathogen in vitro. As the concentration of oils increased the inhibition percentage increased more or less proportionately. Azadirachta indica and Cymbopogon jwarancusa essential oils at 1000mg/ml controlled the fungal growth to cent percent level. Hyptis suaveolense, Majorana hortensis and Nepeta hindostana checked growth of pathogen more than 90% while other five viz. Eucalyptis citriodorae, Mentha piperita, Murrya Koenigii, Ocimum basilicum and Vetiveria zizaniodes exhibited 77­85% check on the fungus. All the oils may be utilized to control the wilt disease as eco­friendly effective measure.

Key words :Essential oil, Inhibition, Linseed wilt.