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Chapter Eight
Hungry Planet: Stories of Plant Diseases

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C8.1. Leaf symptoms of apple scab, caused by Venturia inaequalis, on crabapple.    C8.2. Symptoms of apple scab disease on apple fruit.
     
C8.3. An airblast sprayer being used to apply fungicides in a commercial orchard.


C8.4. Fungicides applied to the center row of summer squash protected these plants from downy mildew and powdery mildew, which killed plants in the bordering unsprayed rows.  
     
 C8.5. Fungicide-treated plants (background) and non-fungicide treated plants (foreground) in an experimental field trial (potatoes with late blight).    

Disease cycle of apple scab caused by Venturia inaequalis.