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Stem canker on sunflower is caused by the fungal pathogen Phomopsis helianthi (teleomorph = Diaporthe helianthi). [1] There are many "Phomopsis" species that have a broad host range, but "Phomopsis helianthi" is the primary pathogen that infects sunflower, although it has also been seen to infect other, secondary hosts.
A barge operator believes it has found a sunken barge in the Ohio River near Pittsburgh, one of 26 that broke loose and floated away during weekend flooding, company officials said Tuesday. Crews ...
The primary nutrients found in water due to nonpoint source pollution are nitrogen and phosphorus from fertilizers. An influx of these nutrients can lead to eutrophication within the water. This is when there is an excess of nutrients in water, thus leading to an explosion in the growth of algae .
Ophiognomonia clavigignenti-juglandacearum is a mitosporic fungus that causes the butternut canker, a lethal disease of butternut trees (Juglans cinerea). It is also known to parasitize other members of the genus Juglans on occasion, and very rarely other related trees including hickories .
Drone photos from the California Department of Water Resources show just how big a difference a recent series of storms, brought on by 11 atmospheric rivers, has made.
THMs have been detected at 38.1 ppb in NYC’s water supply, according to EWG data from 2013-19. The US limits THM in drinking water to 80 ppb, while the EWG recommends not exceeding 0.15 ppb .
Biscogniauxia atropunctata, the hypoxylon canker, is a species [2] of sac fungus in the family Graphostromataceae. Like many other fungi in the genus, it is a plant pathogen ; specifically this species can cause Biscogniauxia (Hypoxylon) canker and dieback disease in host trees.
Types of nonpoint source water pollution include sediment, nutrients, toxic contaminants and chemicals and pathogens. Principal sources of nonpoint source water pollution include: urban and suburban areas, agricultural operations, atmospheric inputs, highway runoff, forestry and mining operations, marinas and boating activities.