Most Trichoderma harzianum have no sexual stage but instead produce only asexual spores. However, for a few strains the sexual stage is known, but not among strains that have usually been considered for biocontrol purposes.
Trichoderma harzianum is a fungus that is also used as a fungicide. It is used for foliar application, seed treatment and soil treatment for suppression of fungal pathogens causing various fungal plant diseases. Commercial biotechnological products such as 3Tac have been useful for treatment of Botrytis, Fusarium and Penicillium sp.It is also used for manufacturing enzymes.
