- Phomopsis stem canker is the #1 disease priority for the National Sunflower Association. Proposals aimed at improving (or leading to the improvement) of disease management tools are strongly encouraged. Recommendations include, but are not limited to:
a.Epidemiology, biology and etiology of pathogen (s)
b.Fungicides or biological control
c.Genetics of the pathogen and/or host leading to host resistance
d.A better understanding of the economic impact of the disease
- Rust including identifying races and the control of rust via genetic resistance and fungicide application.
- There is continued interest in downy mildew with the development of new races and fungicide efficacy. Proposals looking at genetic resistance along with seed treatments with multiple modes of action will be of interest.
- Rhizopus can be a concern after the head is damaged by insects, hail, or other damage. Determining if there are management or mitigating strategies to reduce the impact of the disease is important for growers.
- Address emerging, economically important diseases affecting sunflower production through diagnosis and development of management strategies.
- Sclerotinia proposals should be directed to the National Sclerotinia Initiative.