Sorghum requires about 26-30oC temperature for good growth. The minimum temperature for the germination of the sorghum seed is 7 to 10oC. Grain sorghum does not germinate and grow well under cool soil conditions. Poor emergence and seedling growth may result if planted before soil temperatures reach 35oC.
The adult moth has white fore wings bearing brownish markings and streaks, and the white hind wings have black spots. There is a yellow band on the head and a yellow steak along the anterior margin of the fore wings. Moth emergence occurs in waves following rains.