puccinia
Puccinia is a large genus of rust fungi in the phylum Basidiomycota, order Pucciniales, family Pucciniaceae. Members are obligate plant pathogens that infect a wide variety of hosts and cause rust diseases, which are typically marked by pustules that produce powdery or powdery-orange spores on leaves, stems, and other tissues. The genus includes many economically important pathogens of cereals, grasses, legumes, and ornamentals.
Many Puccinia species have complex life cycles with multiple spore stages and, in many cases, alternate hosts.
Puccinia species infect a broad range of plant hosts, with several focal pathogens of major crops, including
Detection relies on symptom recognition and microscopic examination of spores. Management combines resistant cultivars, fungicide programs,