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Ascochyta Humuli
Ascochyta humuli is a plant pathogen that causes leaf spot on hops Hops are the flowers (also called seed cones or strobiles) of the hop plant ''Humulus lupulus'', a member of the Cannabaceae family of flowering plants. They are used primarily as a bittering, flavouring, and stability agent in beer, to whi .... See also * List of ''Ascochyta'' species References Fungal plant pathogens and diseases Hop diseases humuli {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Pathogen
Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants. Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by eating plant tissues. Plant pathology also involves the study of pathogen identification, disease etiology, disease cycles, economic impact, plant disease epidemiology, plant disease resistance, how plant diseases affect humans and animals, pathosystem genetics, and management of plant diseases. Overview Control of plant diseases is crucial to the reliable production of food, and it provides significant problems in agricultural use of land, water, fuel and other inputs. Plants in both natural and cultivated populat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Spot
A leaf spot is a limited, discoloured, diseased area of a leaf that is caused by fungal, bacterial or viral plant diseases, or by injuries from nematodes, insects, environmental factors, toxicity or herbicides. These discoloured spots or lesions often have a centre of necrosis (cell death).Horst, R. (2008). Westcott’s Plant Disease Handbook (Seventh Edition.). Springer Netherlands. Symptoms can overlap across causal agents, however differing signs and symptoms of certain pathogens can lead to the diagnosis of the type of leaf spot disease. Prolonged wet and humid conditions promote leaf spot disease and most pathogens are spread by wind, splashing rain or irrigation that carry the disease to other leaves.Lucas, G., & Campbell, L. (1992). Introduction to Plant Diseases Identification and Management (2nd ed. 1992.). Springer US. https://doi.org/10.1007/978-1-4615-7294-7 Description Leaf spots are a type of plant disease that are usually caused by pathogens and sometimes othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humulus
''Humulus'', hop, is a small genus of flowering plants in the family Cannabaceae. The hop is native to temperate regions of the Northern Hemisphere. Hops are the female flowers (seed cones, strobiles) of the hop species '' H. lupulus''; as a main flavor and aroma ingredient in many beer styles, ''H. lupulus'' is widely cultivated for use by the brewing industry. Description Although frequently referred to in American literature as the hops "vine", it is technically a bine; unlike vines, which use tendrils, suckers, and other appendages for attaching themselves, bines have stout stems with stiff hairs to aid in climbing. In British literature the term “vine” is generally reserved for the grape genus ''Vitis''. ''Humulus'' is described as a twining perennial herbaceous plant which sends up new shoots in early spring and dies back to the cold-hardy rhizome in autumn. Hop shoots grow very rapidly, and at the peak of growth can grow per week. Hop bines climb by wrapping clockwise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ascochyta Species
This is a list of the fungus species in the genus ''Ascochyta''. Many are plant pathogens. ''Ascochyta'' is an anamorph for many species placed in ''Didymella'' (the teleomorph) but both names refer to the same organism. there are 1,184 species included. There is also one subgenus: ''Ascochyta'' subgen. ''Ascochyta'' Lib..Pl. crypt. Arduenna, fasc. (Liège) 1(Praef.): 8 (1830) A * '' Ascochyta abelmoschi'' * '' Ascochyta abramovii'' * '' Ascochyta abroniae'' * '' Ascochyta abutilonicola'' * '' Ascochyta abutilonis'' * '' Ascochyta acericola'' * '' Ascochyta acerina'' * '' Ascochyta aceris'' * '' Ascochyta achlydis'' * '' Ascochyta achlyicola'' * '' Ascochyta aconitana'' * '' Ascochyta aconiti'' * '' Ascochyta acori'' * '' Ascochyta actaeae'' * '' Ascochyta actinidiae'' * '' Ascochyta aculeorum'' * '' Ascochyta adenocaulonis'' * '' Ascochyta adenophorae'' * '' Ascochyta adenostylis'' * '' Ascochyta adzamethica'' * '' Ascochyta aegilopis'' * '' Ascochy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungal Plant Pathogens And Diseases
A fungus ( : fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related organisms, named the ''Eumycota'' (''true f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hop Diseases
This article is a list of diseases of hops (''Humulus lupulus''). Bacterial diseases Fungal diseases Miscellaneous diseases and disorders Nematodes, parasitic Virus and viroid diseases {, class="wikitable" style="clear" ! colspan=2, Virus and viroid diseases , - , American hop latent , , American hop latent virus , - , Hop latent , , Hop latent virus Hop latent viroid , - , Hop mosaic , , Hop mosaic virus Hop mosaic virus (HpMV) is a pathogenic plant virus Plant viruses are viruses that affect plants. Like all other viruses, plant viruses are obligate intracellular parasites that do not have the molecular machinery to replicate without a hos ... Hop stunt viroid , - , Nettlehead , , Arabis mosaic virus , - , Ringspot , , Prunus necrotic ringspot virus , - , Split leaf blotch , , Arabis mosaic virus , - ReferencesCommon Names of Diseases, The American Phytopathological Society * Hop Diseases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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