Holcus spot
Caused by: Pseudomonas syringaeProblem Category: Bacterial Disease
Symptoms: Circular or elliptical spots 2-10 mm across near the tips of lower leaves which are dark green and water soaked initially but become cream to tan before turning dry and brown; lesions may have red-brown margins; large lesions may have a yellow halo.
Comments: Disease can occur anywhere where corn is grown but is not usually very damaging.
Management: Disease is usually not severe but if it does become a problem crops should be rotated and any debris should be plowed into the soil after harvest.
Control: spray 2 times 10% Cowdung+cowurine +Asafoetida solution in 10 days interval.