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Phyllachora Maydis
''Phyllachora maydis'' is a plant pathogen causing ascomycete diseases in maize/corn, and is more commonly referred to as ''tar spot''. Identified by the distinctive development of stroma, this pathogen in itself is of little economic importance in the production of corn. However, the accompanying fungal infection of ''Monographella maydis,'' identified by “fish-eye” lesions, was claimed to cause significant foliar damage and subsequently yield reduction. there is insufficient information about this pathogen and its management. Symptoms and signs This pathogen is an obligate parasite solely of the species ''Zea mays''. The first symptoms are yellowing spots on both upper and lower leaf surfaces. Within the spot develops the characteristic black stromata over the ascomata, along with chlorosis of surrounding tissue. The chlorotic rings may be elliptical, circular, or may conjoin to form striping up to long. Some of the chlorotic tissue around the ascomata may become necrot ... [...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] |
Missouri
Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee): Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas to the south and Oklahoma, Kansas and Nebraska to the west. In the south are the Ozarks, a forested highland, providing timber, minerals, and recreation. The Missouri River, after which the state is named, flows through the center into the Mississippi River, which makes up the eastern border. With more than six million residents, it is the List of U.S. states and territories by population, 19th-most populous state of the country. The largest urban areas are St. Louis, Kansas City, Missouri, Kansas City, Springfield, Missouri, Springfield and Columbia, Missouri, Columbia; the Capital city, capital is Jefferson City, Missouri, Jefferson City. Humans have inhabited w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllachorales
Phyllachorales is a small order of perithecial sac fungi containing mostly foliar parasites. This order lacks reliable morphological characters making taxonomic placement of genera difficult. There is controversy among mycologists as to the boundaries of this order. Characteristics In general, members of the Phyllachoraceae produce an ascocarp An ascocarp, or ascoma (), is the fruiting body ( sporocarp) of an ascomycete phylum fungus. It consists of very tightly interwoven hyphae and millions of embedded asci, each of which typically contains four to eight ascospores. Ascocarps are m ... embedded in the host tissue, mostly within a stroma or beneath an epidermal clypeus. The type of development is ascohymenial. Genera ''incertae sedis'' *'' Cyclodomus'' *'' Lichenochora'' *'' Lindauella'' *'' Maculatifrondes'' *'' Mangrovispora'' *'' Palmomyces'' *'' Phycomelaina'' *'' Uropolystigma'' References Ascomycota orders {{Phyllachorales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European And Mediterranean Plant Protection Organization
The European and Mediterranean Plant Protection Organization (EPPO) is an intergovernmental organisation responsible for European cooperation in plant protection in the European and Mediterranean region. Founded on April 18th, 1951 and based in Paris, France, EPPO is the Regional Plant Protection Organization (RPPO) for Europe under the International Plant Protection Convention (IPPC). To meet its objectives to protect plants, strategize against the introduction and spread of dangerous pests, and to promote safe and effective control methods, EPPO develops international standards and recommendations, provides reporting services, participates in global discussions on plant health, EPPO hold regular expert working groups, and maintained EPPO codes. History Founded in 1951 and based in Paris, France, EPPO is the Regional Plant Protection Organization (RPPO) for Europe under the International Plant Protection Convention (IPPC). The intergovernmental organisation responsible for Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhytisma Acerinum
''Rhytisma acerinum'' is a plant pathogen that commonly affects sycamores and maples in late summer and autumn, causing tar spot. Tar spot does not usually have an adverse effect on the trees' long-term health. ''R. acerinum'' is an Ascomycete fungus that locally infects the leaves of trees and is a biotrophic parasite.Roland W.S. Weber and John Webster (2002). Teaching techniques for mycology: 18. ''Rhytisma acerinum'', cause of tar-spot disease of sycamore leaves. Mycologist, 16, pp 120-123 The disease is cosmetic and is therefore usually controlled only with sanitation methods.Hudelson, Brian. Wisconsin Horticulture UW-Extension Cooperative Extension. UW-Madison Plant Pathology, April 25, 2004. Web. Oct. 22, 2011. Symptoms and signs In late spring, chlorotic spots appear on tree leaves. These develop into brown-black lesions, retaining the yellow border. The lesions continue to grow, and by the end of summer form leaf spots that look like tar. The spot can grow up to in diame ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vivipary
In plants, vivipary occurs when seeds or embryos begin to develop before they detach from the parent. Plants such as some Iridaceae and Agavoideae grow cormlets in the axils of their inflorescences. These fall and in favourable circumstances they have effectively a whole season's start over fallen seeds. Similarly, some Crassulaceae, such as Bryophyllum, develop and drop plantlets from notches in their leaves, ready to grow. Such production of embryos from somatic tissues is asexual vegetative reproduction that amounts to cloning. Description Most seed-bearing fruits produce a hormone that suppresses germination until after the fruit or parent plant dies, or the seeds pass through an animal's digestive tract. At this stage, the hormone's effect will dissipate and germination will occur once conditions are suitable. Some species lack this suppressant hormone as a central part of their reproductive strategy. For example, fruits that develop in climates without large seasonal variat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coniothyrium Phyllochorae
''Coniothyrium'' is a genus of fungi in the family Phaeosphaeriaceae. The genus was circumscribed by Czech mycologist August Carl Joseph Corda August Carl Joseph Corda (1809–1849) was a Czech physician and mycologist. This botanist is denoted by the author abbreviation when citing a botanical name. Early life and education Corda was born in Reichenberg (now Liberec), Bohemia on No ... in 1840. Species *'' C. acaciae'' *'' C. ampelopsidis-hederaceae'' *'' C. bambusicola'' *'' C. batumense'' *'' C. boydeanum'' *'' C. caespitulosum'' *'' C. carpaticum'' *'' C. celmisiae'' *'' C. celtidis-australis'' *'' C. cerealis'' *'' C. clematidis-rectae'' *'' C. coffeae'' *'' C. concentricum'' *'' C. conicola'' *'' C. conoideum'' *'' C. conorum'' *'' C. crepinianum'' *'' C. cupressacearum'' *'' C. cydoniae'' *'' C. dispersellum'' *'' C. dracaenae'' *'' C. equiseti'' *'' C. ferrarisianum'' *'' C. fluviatile'' *'' C. fraxini'' *'' C. genistae'' *'' C. glomerulatum'' *'' C. henriquesii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coniothyrium
''Coniothyrium'' is a genus of fungi in the family Phaeosphaeriaceae. The genus was circumscribed by Czech mycologist August Carl Joseph Corda August Carl Joseph Corda (1809–1849) was a Czech physician and mycologist. This botanist is denoted by the author abbreviation when citing a botanical name. Early life and education Corda was born in Reichenberg (now Liberec), Bohemia on No ... in 1840. Species *'' C. acaciae'' *'' C. ampelopsidis-hederaceae'' *'' C. bambusicola'' *'' C. batumense'' *'' C. boydeanum'' *'' C. caespitulosum'' *'' C. carpaticum'' *'' C. celmisiae'' *'' C. celtidis-australis'' *'' C. cerealis'' *'' C. clematidis-rectae'' *'' C. coffeae'' *'' C. concentricum'' *'' C. conicola'' *'' C. conoideum'' *'' C. conorum'' *'' C. crepinianum'' *'' C. cupressacearum'' *'' C. cydoniae'' *'' C. dispersellum'' *'' C. dracaenae'' *'' C. equiseti'' *'' C. ferrarisianum'' *'' C. fluviatile'' *'' C. fraxini'' *'' C. genistae'' *'' C. glomerulatum'' *'' C. henriquesii'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford University Press
Oxford University Press (OUP) is the university press of the University of Oxford. It is the largest university press in the world, and its printing history dates back to the 1480s. Having been officially granted the legal right to print books by decree in 1586, it is the second oldest university press after Cambridge University Press. It is a department of the University of Oxford and is governed by a group of 15 academics known as the Delegates of the Press, who are appointed by the vice-chancellor of the University of Oxford. The Delegates of the Press are led by the Secretary to the Delegates, who serves as OUP's chief executive and as its major representative on other university bodies. Oxford University Press has had a similar governance structure since the 17th century. The press is located on Walton Street, Oxford, opposite Somerville College, in the inner suburb of Jericho. For the last 500 years, OUP has primarily focused on the publication of pedagogical texts and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomological Society Of America
The Entomological Society of America (ESA) was founded in 1889 and today has more than 7,000 members, including educators, extension personnel, consultants, students, researchers, and scientists from agricultural departments, health agencies, private industries, colleges and universities, and state and federal governments. It serves the professional and scientific needs of entomologists and people in related disciplines. To facilitate communication among members, the ESA is divided into four sections based on entomological interests, and six branches, based on geographic proximity. The national office is located in Annapolis, Maryland. History In 1889, the American Association of Economic Entomologists was founded by Charles V. Riley, primarily focusing on economic entomology. In 1906, the Entomological Society of America was organized to address the needs of the broader dimensions of biology, taxonomy, morphology, and faunistic studies of insects. Governance Presidents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Integrated Pest Management
A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of what happened over the course of a day or other period *Daybook, also known as a general journal, a daily record of financial transactions *Logbook, a record of events important to the operation of a vehicle, facility, or otherwise *Record (other) *Transaction log, a chronological record of data processing *Travel journal In publishing, ''journal'' can refer to various periodicals or serials: *Academic journal, an academic or scholarly periodical **Scientific journal, an academic journal focusing on science **Medical journal, an academic journal focusing on medicine **Law review, a professional journal focusing on legal interpretation *Magazine, non-academic or scholarly periodicals in general **Trade magazine, a magazine of interest to those of a particular profession or trade **Literary magazine, a magazine devoted to literat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wisconsin
Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake Michigan to the east, Michigan to the northeast, and Lake Superior to the north. The bulk of Wisconsin's population live in areas situated along the shores of Lake Michigan. The largest city, Milwaukee, anchors its largest metropolitan area, followed by Green Bay and Kenosha, the third- and fourth-most-populated Wisconsin cities respectively. The state capital, Madison, is currently the second-most-populated and fastest-growing city in the state. Wisconsin is divided into 72 counties and as of the 2020 census had a population of nearly 5.9 million. Wisconsin's geography is diverse, having been greatly impacted by glaciers during the Ice Age with the exception of the Driftless Area. The Northern Highland and Western Upland along wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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