Ad
related to: orchid leaf damage pictures and information mayo clinic disease info list
Search results
Results From The WOW.Com Content Network
An appressorium is formed and a penetration peg penetrates the leaf surface. [1] From there, hyphae grow throughout the leaf and infects all plant tissues. [1] While this pathogen enters through the leaf, the disease is caused by root rot that causes symptoms of foliar blight. The mycelium gives rise to chlamydospores and oospores. [1]
The virus has not often been reported in wild orchid populations. [2] It can be found in a wide variety of orchid genera [3] but does not infect plants other than orchids. [2] Once an orchid is infected, the virus spreads throughout the infected plant in a number of weeks. [4] Control measures may include sanitizing pruning equipment between ...
Pages in category "Orchid diseases" The following 18 pages are in this category, out of 18 total. This list may not reflect recent changes. B. Botryodiplodia oncidii; C.
These orchids grow flower spikes, leaves, and aerial roots from a single growth point on that stem. Phalaenopsis, or moth orchids , fall into this category, as do vanda orchids.
Orchid fleck dichorhavirus, commonly called Orchid fleck virus (OFV), is a non-enveloped, segmented, single-stranded (ss) RNA negative-strand virus, transmitted by the false spider mite, Brevipalpus californicus. OFV causes necrotic and chlorotic lesions on the leaves [1] of many genera in the family Orchidaceae.
Microtis unifolia is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hollow, green leaf which is 100–800 mm (4–30 in) long. A flowering stem up to 600 mm (20 in) high emerges from the leaf about one-third of its length from its base.
Plant diseases are diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). [1] Organisms that cause infectious disease include fungi , oomycetes , bacteria , viruses , viroids , virus -like organisms, phytoplasmas , protozoa , nematodes and parasitic plants . [ 2 ]
AOL Mail welcomes Verizon customers to our safe and delightful email experience!