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Fungal diseases; Crown rot Sclerotium rolfsii: Cylindrocarpon root rot Cylindrocarpon destructans: Fusarium root rot Fusarium solani: Gray mold Botrytis cinerea: Leaf spot Alternaria sp. Corynespora cassiicola. Phytophthora root and crown rot Phytophthora nicotianae var. parasitica Phytophthora nicotianae var. nicotianae Phytophthora cryptogea ...
Leaf curl. Peach leaf curl is a plant disease characterized by distortion and coloration of leaves and is caused by the fungus Taphrina deformans, [1] which infects peach, nectarine, and almond trees. T. deformans is found in the United States, Europe, Asia, Africa, Australia, and New Zealand. [2] Peach leaf curl reduces the amount of leaves ...
Saintpaulia ionantha H.Wendl. Saintpaulia kewensis C.B.Clarke. Saintpaulia tongwensis B.L.Burtt. Streptocarpus ionanthus ( synonym Saintpaulia ionantha) is a species of Streptocarpus in the section Saintpaulia, commonly known as an African violet. It is native to eastern and southwestern Tanzania. [2]
Citrus black spot is a fungal disease caused by Phyllosticta citricarpa (previously known as Guignardia citricarpa). This Ascomycete fungus affects citrus plants throughout subtropical climates, causing a reduction in both fruit quantity and quality. [citation needed] Symptoms include both fruit and leaf lesions, the latter being critical to ...
Streptocarpus sect. Saintpaulia is a section within Streptocarpus subgenus Streptocarpella [1] consisting of about ten species of herbaceous perennial flowering plants in the family Gesneriaceae, native to Tanzania and adjacent southeastern Kenya in eastern tropical Africa. The section was previously treated as a separate genus, Saintpaulia ...
Cyclaminum Bubani. Cyclaminus Haller. Cyclamen ( US: / ˈsaɪkləmən / SY-klə-mən or UK: / ˈsɪkləmən / SIK-lə-mən) [2] [3] [4] is a genus of 23 species of perennial flowering plants in the family Primulaceae. In English, it is known by the common names sowbread or swinebread.
Episcia. Episcia is a genus of flowering plants in the African violet family, Gesneriaceae. The ten species it contains are native to the tropical regions of Central and South America. The species are perennial herbaceous plants characterized by a stoloniferous habit, red (rarely orange, pink, blue or yellow) flowers, and frequently have marked ...
Petrocosmea forrestii, leaf rosette. Petrocosmea is a genus of the family Gesneriaceae, the African violet family. Most of the species within this genus are endemic to high-altitude areas in Western China, [1] although some are native to other parts of Asia. [2] It is a rosette forming genus that generally grows on wet mossy rocks or forests.