Potential of Fungicides on Spore Germination and Mycelial Growth of Fruit Rot/Anthracnose Disease of Banana Caused by Colletotrichum gloeosporioides

C. S. Azad; J. N. Srivastava; Gireesh Chand

Volume : IV, Issue : VI, June - 2014

Potential of Fungicides on Spore Germination and Mycelial Growth of Fruit Rot/Anthracnose Disease of Banana Caused by Colletotrichum gloeosporioides

C. S. Azad, J. N. Srivastava, Gireesh Chand

Abstract :

The efficacy of fungicides was tested in vitro employing poisoned food technique against C. gloeosporioides. Efficacy of five fungicides viz., Bavistin 50 WP, Kavach 75 WP, Indofil M&ndash;45, Blitox&ndash;50 and Azadiractin at concentration of 100, 150, 200, 250, 500 and 750 &micro;g/ml each were evaluated to study their effect on spore germination of C. gloeosporioides. All the treatments were found effective in suppression of germination of C. gloeosporioides at variable concentrations. Among fungicides Bavistin&ndash;50 was found most effective and 100 per cent inhibition was obtained at 150 ppm whereas, Kavach 75 WP gave the similar results at 500 ppm whereas Azadirachtin was found least effective in suppression of spore germination. Five different fungicides viz., Bavistin 50 WP, Kavach 75 WP, Indofil M&ndash;45, Blitox&ndash;50 and Azadirachtin at 200, 250, 300, 500, 750, 1000, 1250 and 1500 &micro;g/ml each were evaluated to study their effect on mycelial growth of C. gloeosporioides by poison food technique on PDA. Among five fungicides, Bavistin&ndash;50 WP was found to be the best even at 250 &micro;g/ml concentration inhibiting the growth of C. gloeosporioides whereas Azadirachtin was found less effective for inhibiting the radial growth of C. gloeosporioides as compared to the other four fungicides. &nbsp;