coffee rust, devastating foliar disease of coffee plants caused by the fungus Hemileia vastatrix. Coffee rust has long been known in coffee-growing areas of Africa, the Near East, India, Asia, and Australasia, and it destroyed the once-flourishing coffee plantations of Ceylon (now Sri Lanka) and Java in the late 1800s.

Hemileia vastatrix is a multicellular basidiomycete fungus of the order Pucciniales (previously also known as Uredinales) that causes coffee leaf rust (CLR), a disease affecting the coffee plant.

Apr 24, 2025 · Coffee rust is a type of fungus that causes yellow-brown spotting and leads to a reddish-orange dust-like texture. Called Hemileia Vastatrix in the scientific world, coffee rust slowly but devastatingly rots out the coffee plant leaves and causes the leaves to break off or fall on their own, severely lowering the quality and quantity of the ...

Coffee rust, a detrimental fungal infection, primarily affects coffee plants, leading to decreased harvests and significant economic impacts. The fungus manifests as yellow-brown spots on leaves, eventually causing a reddish-orange, dust-like appearance.

Coffee rust is a devasting disease caused by a rust fungus, Hemileia vastatrix. It can reduce coffee production from between 30% to 50%. Infestation levels vary depending on a variety of factors. These include an advantageous climate for the disease, the management measures adopted and the plant’s level of resistance.

Coffee rust is the most economically important coffee disease in the world, and in monetary value, coffee is the most important agricultural product in international trade.

What Is Coffee Rust? Coffee rust, caused by the fungus Hemileia vastatrix, targets the leaves of coffee plants. It begins as small yellow spots that soon transform into a powdery, yellowish-orange dust—spores ready to spread to nearby plants.

Sep 16, 2020 · In tens of thousands of small farms across Central and South America, coffee plants are stumbling under the assault of rust. In some areas, more than half of the acreage devoted to coffee has...

Sep 9, 2024 · Coffee rust, a disease that has been plaguing coffee plantations globally for decades, spreads through airborne spores capable of infecting new plants over vast distances. This method of transmission makes it particularly difficult to control and prevent.

Jul 1, 2024 · This article will guide you through understanding what coffee plant rust fungus is, why it happens, and most importantly, how to tackle it effectively. We'll explore prevention tips, treatment options, and long-term care strategies to keep your plant thriving.