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Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus Puccinia, are currently accepted. [3] Rust fungi are highly specialized plant pathogens with several unique features.
Fomes fomentarius is a stem decay plant pathogen Dry rot and water damage A wood-decay or xylophagous fungus is any species of fungus that digests moist wood , causing it to rot . Some species of wood-decay fungi attack dead wood, such as brown rot, and some, such as Armillaria (honey fungus), are parasitic and colonize living trees.
Plants may die in severe cases. Pre-emergent herbicides contacting the plants' root system via the soil will cause yellowing foliage. Effects of soil borne herbicide may take several years to clear. [1] Bare-root roses: Plant in late autumn at leaf fall, and from late winter to early spring, before growth resumes.
To stop the spread of pathogens good sanitation is key as well as the avoidance of handling plants when wet, planting pathogen-free and resistant cultivars and moving out infected plants. [20] Reducing the humidity around plants and in greenhouses by good plant spacing for air circulation, and watering early in the day can also help prevent ...
Puccinia is a genus of fungi.All species in this genus are obligate plant pathogens and are known as rusts. [1] The genus contains about 4000 species. [2]The genus name of Puccinia is in honour of Tommaso Puccini (died 1735), who was an Italian doctor and botanist who taught anatomy at Hospital of Santa Maria Nuova in Florence.
Cronartium ribicola is a species of rust fungus in the family Cronartiaceae that causes the disease white pine blister rust. Other names include: Rouille vésiculeuse du pin blanc (French), white pine Blasenrost (German), moho ampolla del pino blanco (Spanish).
Gymnosporangium sabinae is a species of rust fungus in the subdivision Pucciniomycotina. Known as pear rust , European pear rust , or pear trellis rust , it is a heteroecious plant pathogen with Juniperus sabina (savin juniper) as the main primary ( telial ) host and Pyrus communis (common pear) as the main secondary ( aecial ) host.
The Canna rust damages the crop and can impact all of its potential uses by damaging photosynthetic material and reducing plant productivity and value. In the United States it is a popular ornamental for home gardens. The rust lowers the value of lilies for sale and can kill canna plants that home gardeners are trying to grow themselves.