%0 Journal Article %T Mechanism of action of Gliocladium virens on Alternaria helianthi %A R. ANITHA and K. MURUGESAN %J Indian Phytopathology %D 2012 %I %X The light and scanning electron microscopic studies on the interaction between Alternaria helianthi, causal agent of blight of sunflower and the antagonist Gliocladium virens revealed that there was no hyphal envelopment and physical coiling between the hyphae of the mycoparasite and its host. %K Alternaria helianthi %K Gliocladium virens %K biological control %K antibiosis %U http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/19126