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Black rot targets a variety of orchids but Cattleya orchids are especially susceptible. [1] Pythium ultimum and Phytophthora cactorum are known to cause black rot in orchids. [1] Pythium ultimum is a pathogen that causes damping-off and root rot on plants. [2] Symptoms of this pathogen include stunting and chlorosis. [2]
Phytophthora cactorum has an extremely wide host range, and can infect over 200 species or 160 genera of trees, ornamentals, and fruit crops. [2] In general, P. cactorum is capable of infecting both young and old plants, and causes root rots and crown rots of the many genera it infects. Although the symptoms this pathogen produces varies ...
Sclerotinia sclerotiorum. Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight. A key characteristic of this pathogen is its ability to produce black resting ...
Dendrobium loddigesii ( Loddiges' dendrobium) is a miniature to small sized, warm to cold growing epiphyte, lithophyte or terrestrial orchid that comes from Laos, Vietnam, and China. [1] [2] It is found in humid, mossy, mixed and coniferous forests at elevations of 1000 to 1500 meters, in areas with dry winter and a wet spring and summer.
Fissipes hirsuta f. albiflora (E.L.Rand & Redfield) Farw. Cypripedium acaule, the pink lady's slipper or moccasin flower, is a species of flowering plant in the orchid family Orchidaceae native to eastern North America. It is currently the provincial flower of Prince Edward Island, Canada, [4] and the state wildflower of New Hampshire, United ...
The orchid family is one of the largest flowering plant families in the world. Orchids can be found on every continent except Antarctica. Beautiful and fascinating, Orchids can grow almost ...
Vanilloideae Szlachetko. Distribution range of family Orchidaceae. Orchids are plants that belong to the family Orchidaceae ( / ˌɔːrkɪˈdeɪsi.iː, - si.aɪ / ), [2] a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Orchids are cosmopolitan plants that are found in almost every habitat on ...
Best Time of Year to Repot an Orchid. Tarte recommends knowing how to repot an orchid in the spring and summer when plants are growing most actively. However, orchids can be repotted year-round ...
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