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Puccinia

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Puccinia 

a genus of rust fungi with bicellular teliospores on a long stem. There are more than 3,000 species (according to other data, about 4,000 species). The fungi parasitize angiospermous plants in almost all parts of the world. Many species are agricultural pests, causing disease in grains, legumes, and industrial crops.
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Researchers had previously engineered wheat strains to be resistant against "stripe rust" disease, but it has enjoyed limited durability in practice because the fungus Puccinia striiformis had always "mutated to overcome them," according to the study authors.
Wheat gene found to overcome fungal disease: study by AFP / AFP Global Edition
It''s caused by a fungus called Puccinia helianthi and shows up on sunflower planted throughout the U.
An Overview of Sunflower Diseases by Ryan J Bell / Home improvement and landscaping community
Dithane will protect against a range of downy mildews, including Peronospora species, rusts including Puccinia species and leaf spots (Septoria species).
Fungicide has new approvals by The Journal (Newcastle, England)
 
 
 
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