To know the exact date of occurrence of the disease, afield experiment was carried out with 10 days interval of sowing. The incidence of the disease was more in the beginning of the season for growing wheat crop. Later, the decrease in the relative humidity and increase in the temperature which hindered the disease development. Same trend was observed in other field experiments wherein thirteen wheat varieties were tried with three different dates of sowing. In the experiment pertaining to the effect of three levels of irrigation with six varieties, it was found that there was increase in disease development with increase in number of irrigations.