Control white blister with a combination of management practices and a fungicide spray program.
Avoid long periods of leaf wetness as spores need water to germinate and wet leaf surfaces to infect plants.
Maintain good air movement to dry leaves off quickly and reduce infection
Increased nitrogen may increase susceptibility to white blister
Increased levels of phosphorous and potassium may increase resistance to white blister, however, high rates of these fertilisers can stunt plants
Seed companies are actively selecting for white blister resistance in broccoli varieties
Start clean, Stay clean
Control white blister in crops before the disease develops to epidemic levels
Ensure cool conditions during packing and transit as infections can develop after harvest.