Asexual spores produced from one parent are present in larger numbers in the atmosphere, more so than sexual spores
which require genetic input from two parents.
During the winter, the pathogen survives on chickpea leaves and stems left behind in the field after harvest and forms sexual spores
But in addition to the asexual bodies, Trichoderma also have a form that produces microscopic sexual spores
with genes that have recombined.