Peanut rust

Puccinia arachidis, Puccinia arachidicola

Small, yellow spots quickly produce typical 'rusty' pustules containing spores. Pustules are not visible for 7-10 days after infection. They are usually found underneath the lower leaves and spread very rapidly. Infections are often first found as a 'hot spot' with a few plants covered in rust.

The spores can blow long distances between crops.

Can cause major crop losses if it starts early and is uncontrolled. Once rust starts in a crop, dews and fogs are sufficient to create a serious epidemic.

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