A coffee tree infected with coffee leaf rust will display irregular-shaped, yellowish spots on the surfaces of the leaves. Underneath the leaves, there may be powdery spores, yellow to orange in ...

The leaf rust is established in all other major coffee ... Regular pruning and training of the coffee tree helps to prevent over-cropping and maintain a healthy field. These practices help to ...

Using genes from coffee plants around the world, researchers built a family tree for the world's most ... more vulnerable to diseases like coffee leaf rust, which cause billions of dollars in ...