Tan spot
Caused by: Pyrenophora tritici-repentisProblem Category: Fungal Disease
Symptoms: Oval or diamond shaped necrotic lesions with brown centers and yellow halos on leaves
Comments: Disease infection requires a wet period of between 6 and 48 days
Management: Disease can be significantly reduced by rotating crops with non-hosts and tilling crop debris into soil after harvest.
Control: spray 2 times Cowdung+Asafoetida solution in 10 days interval.