Trichoderma Pers. Ex Fr., a genus under Deuteromycotina,
has gained immense importance since last few decades due
to its biological control ability against several plant pathogens
and varied industrial applications. Trichoderma spp. are found
in almost all types of soil viz., cultivated soil, garden soil,
fallow and pasture land and forest soil (Harman, 2000).
Mycoparasitism, spatial and nutrient competition and
antibiosis by enzymes and secondary metabolites are typical
mechanisms of biocontrol action of this genus.