Goss’s bacterial blightCaused by: Clavibacter michiganensis
Problem Category: Bacterial Disease
Symptoms: Gray or yellow stripes with irregular margins on leaf surfaces; stripes follow leaf veins and contain characteristic dark green to black water-soaked spots; if infection occurs early then plant may become wilted or withered; it is common to find a crystalline residue on leaves caused by dried bacterial exudate.
Comments: Disease overwinters in diseased crop debris on, or close to, the soil surface; temperatures below 12°C (53.6°F) and above 40°C (104°F) bacterium grows more slowly and may even be killed off.
Management: Plant resistant sweetcorn hybrids; rotate crop; plow crop debris into soil immediately after harvest.
Control: spray 2 times 10% Cowdung+Asafoetida solution in 10 days interval.