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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] |
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 which, in addition to bitterness, they impart floral, fruity, or citrus flavours and aromas. Hops are also used for various purposes in other beverages and herbal medicine. The hops plants have separate female and male plants, and only female plants are used for commercial production. The hop plant is a vigorous, climbing, herbaceous perennial, usually trained to grow up strings in a field called a hopfield, hop garden (in the South of England), or hop yard (in the West Country and United States) when grown commercially. Many different varieties of hops are grown by farmers around the world, with different types used for particular styles of beer. The first documented use of hops in beer is from the 9th century, though Hildegard of Bingen, 30 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cercospora Cantuariensis
''Cercospora cantuariensis'' is a fungal plant pathogen In biology, a pathogen ( el, πάθος, "suffering", "passion" and , "producer of") in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ .... References cantuariensis Fungal plant pathogens and diseases Fungi described in 1923 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meloidogyne Hapla
Northern root-knot nematode (''Meloidogyne hapla'') is a species of vegetable pathogens which produces tiny galls on around 550 crop and weed species. They invade root tissue after birth. Females are able to lay up to 1,000 eggs at a time in a large egg mass. By surviving harsh winters, they can survive in cold climates (hence, the name, Northern). Hosts and symptoms ''Meloidogyne hapla'' (Northern root-knot nematode) has a wide host range. It is polyphagous and affects over 550 crops and weeds. It feeds on many agricultural and horticultural plants (vegetables, fruits, ornamentals), but few grasses or cereals. A list of known hosts can be found at the bottom of this page. Symptoms can be seen in the roots, leaves, and the overall growth of the infected plant. In roots, there may be stunting, wilting, and the formation of abnormal growths called galls. Galls are usually small and spherical and are situated near many small roots. They are formed when the nematode enters the roo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiphinema Americanum
''Xiphinema americanum'', the American dagger nematode, is a species of plant pathogenic nematodes. It is one of many species that belongs to the genus ''Xiphinema''. It was first described by N. A. Cobb in 1913, who found it on both sides of the United States on the roots of grass, corn, and citrus trees.Cobb, N. A. (1913). "New nematode genera found inhabiting freshwater and non-brackish soils.". ;;J. Wash. Acad. Sci.;; 3: 432–435.4 Not only is ''Xiphinema americanum'' known to vector plant viruses, but also ''X. americanum'' has been referred to as "the most destructive plant parasitic nematode in America", and one of the four major nematode pests in the Southeastern United States.Christie, J. R. (1952). "Some new nematodes of critical importance to Florida growers.". ''Proc. Soil Sci. Soc. Fla.'' 30: 39Thorne, G. (1961). ''Principles of Nematology''. McGraw-Hill. New York. 553pWang, S., Gergerich, R., Wickizer, S., Kim, K. (2002). "Localization of transmissible and nontran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xiphinema Diversicaudatum
''Xiphinema diversicaudatum'' is an amphimictic ectoparasitic nematode species.Evans, K., Trudgill, D.L., Webster, J.M. 1998. Plant Parasitic Nematodes in Temperate Agriculture. This species has a characteristically long stylet capable of penetrating into a host's vascular tissue.''Xiphinema diversicaudatum'' at Nemaplex, They have a wide host range with some of the extensively studied ones being , and < ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterodera Humuli
''Heterodera humuli'' is a plant pathogenic nematode, the hop cyst nematode. It is an obligate parasite and infests hop plants, ''Humulus lupulus''. Description The female hop cyst nematode is white and lemon-shaped with a body length of and a width of . The male is transparent and vermiform with a body length . The eggs are oval, and the first two instar larvae are vermiform. The second instar larvae are mobile in damp soil and invade suitable roots. Here they develop further and become sedentary, burying their heads in cells and feeding on the cell sap. The central part of their bodies swells, and after moulting again they develop into bottle-shaped third instar larvae and then thicker lemon-shaped fourth instar larvae. At this stage they either become male or female depending on the food supply. The swollen larval bodies break out of the root and the mobile males travel through the soil while the females remain attached to the root tissues by their heads. After inseminatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticillium Dahliae
''Verticillium dahliae'' is a fungal plant pathogen. It causes verticillium wilt in many plant species, causing leaves to curl and discolor. It may cause death in some plants. Over 400 plant species are affected by ''Verticillium'' complex. Management ''Verticillium dahliae'' has a wide host range and can persist as microsclerotia in the soil for years, so management via fallowing or crop rotation generally has little success. The exception to this is rotation using broccoli, which has been shown to decrease ''Verticillium'' severity and incidence in cauliflower fields. This is likely due to the production of allyl isothiocyanate in broccoli, which can suppress the growth of plant pathogenic fungi. Seed choice may reduce disease presence. Purchasing seed stock from certified ''Verticillium''-free growers and utilizing resistant or partially resistant cultivars can decrease disease incidence. Even resistant cultivars may show symptoms if the field has a high concentration of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticillium Albo-atrum
''Verticillium albo-atrum'' is a plant pathogen with many hosts. Infected plants See: * List of potato diseases * List of alfalfa diseases * List of African daisy diseases * List of beet diseases * List of caneberries diseases * List of tobacco diseases * List of tomato diseases * List of sunflower diseases * List of strawberry diseases * List of sapphire flower diseases * List of rose diseases * List of pocketbook plant diseases * List of Capsicum diseases * List of peanut diseases * List of mint diseases * List of mango diseases * List of Jerusalem cherry diseases * List of impatiens diseases * List of hop diseases * List of hemp diseases * List of geranium diseases * List of fuchsia diseases * List of elm diseases * List of dahlia diseases * List of cucurbit diseases * List of crucifer diseases * List of cineraria diseases * List of chickpea diseases This is a list of diseases of chickpeas (''Cicer arietinum'') Nematodes, parasitic Viral diseases Phytoplasmal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 structures known as sclerotia and white fuzzy growths of mycelium on the plant it infects. These sclerotia give rise to a fruiting body in the spring that produces spores in a sac which is why fungi in this class are called sac fungi (Ascomycota). This pathogen can occur on many continents and has a wide host range of plants. When ''S. sclerotiorum'' is onset in the field by favorable environmental conditions, losses can be great and control measures should be considered. Hosts and symptoms ''S. sclerotiorum'' is among the most omnivorous of plant pathogens and so would not make a good mycoherbicide. Economically significant hosts include ''Vicia faba'', for w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dematophora Necatrix
''Rosellinia necatrix'' is a fungal plant pathogen infecting several hosts including apples, apricots, avocados, cassava, strawberries, pears, hop. citruses and ''Narcissus Narcissus may refer to: Biology * ''Narcissus'' (plant), a genus containing daffodils and others People * Narcissus (mythology), Greek mythological character * Narcissus (wrestler) (2nd century), assassin of the Roman emperor Commodus * Tiberiu ...'', causing white root rot. References External links Index FungorumUSDA ARS Fungal Database Fungal plant pathogens and diseases Apple tree diseases Stone fruit tree diseases Pear tree diseases Avocado tree diseases Root vegetable diseases Fungal strawberry diseases Food plant pathogens and diseases Fungal citrus diseases Fungi described in 1904 Xylariales {{fungus-fruit-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosellinia Necatrix
''Rosellinia necatrix'' is a fungal plant pathogen infecting several hosts including apples, apricots, avocados, cassava, strawberries, pears, hop A hop is a type of jump. Hop or hops may also refer to: Arts and entertainment * ''Hop'' (film), a 2011 film * Hop! Channel, an Israeli TV channel * ''House of Payne'', or ''HOP'', an American sitcom * Lindy Hop, a swing dance of the 1920s and .... citruses and '' Narcissus'', causing white root rot. References External links Index FungorumUSDA ARS Fungal Database Fungal plant pathogens and diseases Apple tree diseases Stone fruit tree diseases Pear tree diseases Avocado tree diseases Root vegetable diseases Fungal strawberry diseases Food plant pathogens and diseases Fungal citrus diseases Fungi described in 1904 Xylariales {{fungus-fruit-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaerotheca Humuli
''Podosphaera macularis'' (formerly ''Sphaerotheca macularis'') is a plant pathogen infecting several hosts including chamomile, caneberrie, strawberries, hop, hemp and ''Cineraria''. It causes powdery mildew of hops. Host range and symptoms of ''Podosphaera macularis'' The pathogen that causes powdery mildew of hops was once considered to be ''Sphaerotheca macularis'', which is capable of infecting many plants; however, in recent years, the pathogen that causes powdery mildew of hops has been taxonomically classified as ''Podosphaera macularis''. This ascomycete is only known to be pathogenic on hop plants, including both ornamental and wild hops, and ''Cannabis sativa''. The host range of many ''Podosphaera macularis'' strains is restricted by the existence of resistant hop varieties, such as the “Nugget” variety of Washington state and Oregon, although in recent years, resistance within this hop variety has been overcome in the laboratory. When disease does occur, early s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
