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Miscellaneous diseases and disorders; Algal disease (algal spot) Cephaleuros virescens: Amachamiento Unknown Blossom-end clearing Physiological Chilling injury Cold temperatures Citrus blight Unknown - pathogen suspected Creasing Nutritional (?) Crinkle scurf Genetic Granulation Physiological Lemon sieve-tube necrosis Unknown, but hereditary
Citrus greening is distinguished by the common symptoms of yellowing of the veins and adjacent tissues (hence the "yellow dragon" name given by observing Chaozhou farmers as early as the 1870s [1]); followed by splotchy mottling of the entire leaf, premature defoliation, dieback of twigs, decay of feeder rootlets and lateral roots, and decline in vigor, ultimately followed by the death of the ...
Mal secco is a disease caused by the conidia-producing fungal plant pathogen Phoma tracheiphila. [1] It mainly causes disease to citrus trees in the Mediterranean. In particular it causes damage to lemon trees in the Mediterranean basin. [2] The plant pathogen, Phoma tracheiphila, is rain- and wind-disseminated.
While these blight-caused blockages cause the decline of an infected tree, the plant rarely dies. [1] Co-infection between citrus blight and citrus greening disease (HLB) is possible, and is so severe a health issue that trees infected by both diseases usually die. [3] The disease affects trees of all ages and types, including seedlings and ...
As the name indicates, citrus stubborn disease affects citrus plants, most severely oranges (especially naval and mandarin varieties), grapefruit, and tangelo trees. [7] Lemon and lime are also affected, but much less severely. [8] CSD is an unusual case of a plant disease shared between a vector, weed, and unrelated crop. [2]: 8 Symptoms of ...
Phyllosticta citricarpa infects mostly citrus plants. However, this fungus is also seen to infect other plants such as golden apple, mango and guava as well. [10] There are some plants that are more susceptible to the pathogen than others. Lemon and late maturing citrus, such as Valencia orange, are the most susceptible hosts. [citation needed]
The disease can also be spread by contaminated equipment, and by transport of infected or apparently healthy plants. Due to latency of the disease, a plant may appear to be healthy, but actually be infected. Citrus canker bacteria can enter through a plant's stomata or through wounds on leaves or other green parts. In most cases, younger leaves ...
Blight is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs. [1] Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are: [citation needed]