Results 41 to 50 of about 103,925 (122)

Studies on Citrus Melanose Disease of Satsuma Orange

open access: yesJapanese Journal of Phytopathology, 1973
In October 1969, the perithecia of citrus melanose fungus, Diaporthe citri (Fawc.) Wolf, were found in the orchard of Satsuma orange in Kanagawa Prefecture. The author conducted experiments to know the time and environmental conditions on perithecia formation, and also to ascertain the virulence of ascospores against citrus fruits comparing with that ...
K. Ushiyama
semanticscholar   +3 more sources

Citrus Foliar Fungal Diseases

open access: yesEDIS, 2009
PP261, a 2-page illustrated identification sheet by Megan M. Dewdney and Jamie D. Yates, can be used to identify four fungal diseases in citrus: Alternaria Brown Spot, Citrus Scab, Greasy Spot, and Melanose.
Megan M. Dewdney, Jamie D. Yates
doaj   +5 more sources

Blended Features Classification of Leaf‐Based Cucumber Disease Using Image Processing Techniques

open access: yesComplexity, Volume 2021, Issue 1, 2021., 2021
Existing plant leaf disease detection approaches are based on features of extracting algorithms. These algorithms have some limits in feature selection for the diseased portion, but they can be used in conjunction with other image processing methods. Diseases of a plant can be classified from their symptoms.
Jaweria Kainat   +6 more
wiley   +1 more source

Late infection of citrus melanose upon Satsuma mandarin fruit

open access: yesJapanese Journal of Phytopathology, 1965
For the purpose of surveying damage by late infection of citrus melanose, the author carried out inoculation experiments upon Satsuma mandarin (Citrus unshu) fruits with the causal fungus, Diaporthe citri (Faw.) Wolf, during the period from September to November.
A. Sasaki
semanticscholar   +3 more sources

Foliar Fungal Disease Management for Commercial Citrus Groves

open access: yesEDIS, 2009
PP270, a 2-page illustrated fact sheet by Megan M. Dewdney and Jamie D. Yates, highlights symptoms and management for greasy spot, melanose, alternaria brown spot, and citrus scab for commercial citrus groves.
Megan M. Dewdney, Jamie D. Yates
doaj   +5 more sources

Studies on the causal fungus of citrus melanose in Japan.

open access: yesEngei Gakkai zasshi, 1950
The authors carried out studies on the morpho-logical and physiological characters of the causal fungus of citrus melanose in Japan, and particu-larly its pathogenicity during the year 1948 and 1949. Results of the experiments are summarized as follows. 1.
S. Tanaka, S. Nakamura
semanticscholar   +3 more sources

Common mycorrhizal networks enhance defense responses against pathogens in neighboring plants. [PDF]

open access: yesIMetaOmics
The common mycorrhizal networks (CMNs) provide a channel for interplant communication, which enables plants of different species to prepare for pathogen infections without direct exposure. The CMNs change the microbial abundance and community structure of the neighboring plants following pathogen infection in the donor plants, which further enhances ...
Li Y   +6 more
europepmc   +2 more sources

Influence of Environmental Factors on Severity of Citrus Scab and Melanose [PDF]

open access: yesPlant Disease, 2003
Citrus scab, caused by Elsinoe fawcettii, and melanose, caused by Diaporthe citri, produce external blemishes on citrus fruit, reducing acceptability of the fruit for the fresh market. In laboratory studies, rough lemon seedlings and grapefruit seedlings were inoculated with conidia of E. fawcettii and D. citri, respectively, and exposed to a range of
J P, Agostini   +3 more
openaire   +2 more sources

Automatic Detection of Citrus Fruit and Leaves Diseases Using Deep Neural Network Model

open access: yesIEEE Access, 2021
Citrus fruit diseases are the major cause of extreme citrus fruit yield declines. As a result, designing an automated detection system for citrus plant diseases is important.
Asad Khattak   +6 more
doaj   +1 more source

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