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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.
Soybean stem canker stem browning. Disease symptoms occur primarily on the stems, leaves and can lead to whole plant symptoms. [2] Reddish brown lesions on the lower stem of soybean plants progress into brown cankers. In some cases, the disease can spread to all parts of the stem. Stem girdling can result in premature plant death. [2]
Fusarium circinatum is a fungal plant pathogen that causes the serious disease pitch canker on pine trees and Douglas firs (Pseudotsuga menziesii).The most common hosts of the pathogen include slash pine (Pinus elliottii), loblolly pine (Pinus taeda), Monterey pine (Pinus radiata), Mexican weeping pine (Pinus patula), and Douglas fir. [1]
Butternut canker is a lethal disease of butternut trees, and has no cure.. A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticulture.
Colletotrichum stem canker Colletotrichum crassipes. Damping-off Pythium aphanidermatum Pythium splendens var. hawaiianum. Dieback and stem canker Colletotrichum capsici. Diplodia stem canker Diplodia cajani. Dry root rot Macrophomina phaseolina = Rhizoctonia bataticola. Fusarium leaf blight Fusarium pallidoroseum = Fusarium semitectum ...
A mixture of carbendazim and a scab fungicide, such as dithianon, is the suggested treatment in areas with a severe canker problem. In areas with a reduced risk of canker, it is recommended that a scab fungicide be applied in the spring-summer and copper oxychloride applied at leaf-fall to avoid infection.
Leucostoma canker is a fungal disease that can kill stone fruit (Prunus spp.). [1] The disease is caused by the plant pathogens Leucostoma persoonii [2] and Leucostoma cinctum [3] and Cytospora leucostoma and Cytospora cincta [4] . The disease can have a variety of signs and symptoms depending on the part of the tree infected.
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).