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Citrus stubborn disease can be spread through grafting, so it is important to ensure that the mother tree is free of Spiroplasma citri before propagation. Also, trees should be obtained, if possible from areas where Spiroplasma citri is not viable to prevent bringing the pathogen into an orchard.
Viral diseases; Citrus mosaic Satsuma dwarf-related virus: Bud union crease Virus for some combinations, otherwise genetic or unknown Citrus leaf rugose genus Ilarvirus, Citrus leaf rugose virus (CLRV) Citrus yellow mosaic genus Badnavirus: Crinkly leaf Crinkly leaf virus (strain of Citrus variegation virus) Infectious variegation
The disease was then reported outside of California for the first time in the Mediterranean in 1928, [11] suggesting its wider geographical spread and impact on citrus production by that time. However, S. citri, the bacterium responsible for Citrus stubborn disease, was not cultured and identified until 1973, initially discovered in California. [9]
Alternaria citri is an ascomycete fungal plant pathogen that causes black rot in citrus plants. [1] Specifically, certain lemon, lime, orange, mandarin and grapefruit species are susceptible hosts for this pathogen. [2] [3] The host is more susceptible to disease in climates with dry, warm summers and cool, moist winters. One symptom of the ...
Penicillium digitatum (/ ˌ p ɛ n ɪ ˈ s ɪ l i əm ˌ d ɪ dʒ ɪ ˈ t eɪ t əm /) is a mesophilic fungus found in the soil of citrus-producing areas. [1] [2] [3] It is a major source of post-harvest decay in fruits and is responsible for the widespread post-harvest disease in Citrus fruit known as green rot or green mould.
It is the organism that causes the most destructive fungal disease, anthracnose, of lupin species worldwide. [1] It also causes the disease postbloom fruit drop on many varieties of citrus , especially Valencia and navel oranges in Florida .
The impact of Hurricanes Irma in 2017, Ian in 2022 and Milton in 2024 on trees already weakened from years of citrus greening disease "has led Alico to conclude that growing citrus is no longer ...
Phytophthora citrophthora, also known as brown rot of citrus, is a soil borne oomycete that infects several economically important citrus crops. [1] A diagnostic symptom of P. citrophthora is gummosis, wherein lesions around the base of the tree exude sap. [2]