Integrated Diseases Management of Lentil Wilt Caused by Fusarium oxysporum f. sp. lentis [L.] Medik

Abstract

Lentil (Lens esculenta Monech) is an important Rabi pulse crop grown throughout India. Lentil plays an important role in the supply of the protein to under nourished vegetarian population of the country. It suffers from a number of diseases. Wilt of lentil caused by F. oxysporum f. sp. lentis is one of the wide spread and destructive diseases in India. The sequential development of disease symptoms were observed and recorded in inoculated wilt sick pots maintain in experiment field. The first incidence of disease was recorded after 30 days of showing. Effect of different concentration of fungicide and plant extract, bio agents against the pathogen Fusarium oxysporum f. sp. lentis on mycelial growth, Table 3, 4 and 5 illustrates the different concentration of fungicide and plant extract (Metalaxyl 8% + Mancozeb 64% @ 1000 ppm) against pathogen on per cent inhibition were recorded maximally i.e. 100 % followed by Neem Leaf extract (Azadirachta indica @ 10%) (84.11%), Garlic (Allium sativum @ 10%) (74.89 %) respectively, Percent wilt disease incidence was found at par in Seed treatments with neem leaf extract 10% (46.47%), Trichoderma viride and Trichoderma harzianum @ 4 g kg-1 seed (48.18), Metalaxyl 8% + Mancozeb 64% @ 2.5g/kg seed + seed treatment with Trichoderma harzianum @ 4 g kg-1 seed (58.42).