section_path: Cultivation/Growth
section_name: Growth
paragraph_text: Growth
  
  Cereal strains are bred for consistency and resilience to the local environmental conditions. The greatest constraints on yield are plant diseases, especially rusts (mostly the Puccinia spp.) and powdery mildews. Fusarium head blight, caused by Fusarium graminearum, is a significant limitation on a wide variety of cereals. Other pressures include pest insects and wildlife like rodents and deer. In conventional agriculture, some farmers will apply fungicides or pesticides