Author(s):

Narender Kumar and Uma Kant Tripathi

Abstract: Investigations were made on the effect of 3 Trichoderma spp. and 8 plants extracts against Alternaria lini cause blight disease in linseed. Antifungal activity of Trichoderma spp. and selected plant extracts were studied against Alternaria lini. The significantly inhibitions of mycelial growth of A. lini are recorded in all treatments. Maximum growth of A. lini inhibited by T. harzianum (72.22%) followed by T. viride (67.03%), T. virens (63.70%), respectively. When among plant extracts, Azadirachita indica showed maximum inhibition (88.52%) followed by Ocimum tenuiflorum (76.67%), Mentha piperita (74.08%), Mentha arvensis (73.70%),Ginger officinalis (71.48%), Parthenium hysterophorus (59.26%), Allium sativum (51.86%) and Allium cepa (17.78%), respectively.

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