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Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight. A key characteristic of this pathogen is its ability to produce black resting structures known as sclerotia ...
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales . Powdery mildew is one of the easier plant diseases to identify, as the signs of the causal pathogen are quite distinctive.
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).
Woolly aphids and other sucking insects are often vectors of transmission for powdery mildew (a white fungus which grows on above ground parts of some plants), and other infectious diseases. Typically wooly aphids in subtemperate climates precede and are an indicator of various plant infections, including powdery mildew.
Albugo candida, commonly known as white rust or white blister rust, is an obligate plant pathogen in the family Albuginaceae that infects Brassicaceae species. [2] Although called a "rust" and a fungus, it is an oomycete .)
White root rot has now become the most threatening root disease of the rubber tree in both Asian and African continents, which supply 98% of the natural rubber to the world market. In Indonesia alone, the affected area is more than 80,000 ha. As a whole 5–10% of the cultivated lands are in bare patches due to this deadly disease.
The adults are 2–8 millimetres (0.08–0.3 in) long, and are occasionally pollinators of plants and carriers of mushroom spores. [2] They also may carry diseases such as pythium (which causes "damping-off" to kill seedlings) on their feet. [3]
The spots are fuzzy in texture and approximately 2 cm (0.8 in) in diameter. [2] In some cases, commonly in more susceptible hosts, stem and fruit spots can occur as a result of infection as well. These leaf spots cause a reduction in plant photosynthetic surface area.