Study on efficacy of different fungicides on leaf spot of cabbage
2009
Lakho, A.A.
An investigation was undertaken both In-vitro as well as In-vivo to assess the efficacy of various fungicides on leaf spot of cabbage caused by Alternaria brassicae. Symptoms of disease shows that the spots were sphagenous, the entire leaf became brown and the spots were of lighter shade than the surrounding parts. The hyphye measured from 1-4.5 micron in diameter and conidiophores measured 3-10 micron. During the studies carried out In-vivo, to see the development of fungus under various fungicide treatments. It was observed that Ridomil remained on top among various fungicides in reducing Alternaria brassicae population, although all fungicides reduced disease as compared to control but remained at par with Ridomil. On the basis of present investigation it may be concluded that Ridomil was the more effective fungicide in control leaf spot of cabbage.
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