Effect of Fungicides and Microbial Antagonists in the Control of Lasiodiplodia Theobromae, the Cause of Seed Rot, Seedling and Root Infection of Bottle Gourd (Report‪)‬

Byline: Nasreen Sultana and A.Ghaffar ABSTRACT: The effect of fungicides and microbial antagonists in the control of Lasiodiplodia theobromae , the cause of seed rot, seedling and root infection on bottle gourd was studied in vitro and in vivo. Carbendazim and Topsin-M completely inhibited the growth of L. theobromae in vitro at 50 ppm whereas Aliette, Benlate, Mancozeb, Ridomil and Vitavax showed complete inhibition of colony growth at 100 ppm. Invariably all fungicides at three different concentration viz., 1, 2, 3 g (a.i.) kg -1 seeds reduced the recovery of the seed borne fungi. The most effective seed treatments were Benlate, Topsin-M, Carbendazim and Aliette @ 3 g kg -1 seeds which enhanced seed germination and reduced seed infection in bottle gourd.