Alternaria leaf spot of crucifers
... their relatively large size compared to spores produced by powdery and downy mildew pathogens. Thus spread is rare among farms that are close but not ...
Search Results for: powdery mildew
Septoria leaf spot on lettuce
... dispersed long distances like the wind-dispersed spores of powdery and downy mildew pathogens. Hot-water seed treatment is effective but reduced ...