The best thing to do is to purchase quality seed. Even 1 infected seed in 10,000 seeds can create 17 hotspots per acre at currently recommended seeding rates. Ascochyta cycles very rapidly in chickpea. However, Bravo will not control ascochyta blight in chickpea. Ascochyta infection in chickpea develops very rapidly and Bravo only serves to slow up disease development.
Resistant cultivars are the best means of controlling ascochyta blight.
Unfortunately, only a few resistant cultivars are available and then only in limited amounts. Different races of ascochyta blight occur in various areas of the world and a resistant cultivar is usually resistant to only one or a few races. Thus, each country must have cultivars that are resistant to their race or races. Dr. Muehlbauer, USDA pulse breeder at Washington State University, has developed three ascochyta-resistant chickpea cultivars. Sanford and Dwelley are ascochyta-resistant kabuli chickpea cultivars, but they are very late maturing.