Common / Southern Rust: | Common Rust | Southern Rust |
---|---|---|
Ideal Environment | Cool to warm and moist - 60-77 F | Warm to hot and moist - 77+ F |
Appearance of Pustules | Large, circular to elongated | Small circular, pinhead appearance |
Pustule (spore) Color | Brown to cinnamon brown | Reddish orange |
Location of Pustules | Upper and lower leaf surfaces. Infects leaves only. | Upper leaf surface. May also infect husks. |
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