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Topic: Anthracnose


In the News (Sun 15 Nov 09)

  
  Alfalfa Anthracnose, AC-15-96
Anthracnose is a serious stem and crown rot disease of alfalfa which can kill individual plants and cause rapid stand decline.
Anthracnose is caused by Colletotrichum trifolii, a fungus which produces masses of tiny spores on infected stems and crowns.
If anthracnose is known to be present in a field, then caution should be used during harvesting to prevent spreading the disease to uninfested fields on the same farm.
ohioline.osu.edu /ac-fact/0015.html   (571 words)

  
 IPM : Reports on Plant Diseases : Anthracnose Diseases of Shade Trees
Anthracnose is the name given to a group of diseases that are caused by a number of morphologically similar fungi.
Since anthracnose diseases are rarely fatal, control measures may not be warranted depending on the value placed on the tree, the weather conditions when the leaves and twigs are growing rapidly, and the amount of disease expected.
Anthracnose on young walnut trees is less severe in plantations fertilized with nitrogen fertilizers.
www.ipm.uiuc.edu /diseases/series600/rpd621   (1723 words)

  
 PDC, University of Missouri - Anthracnose
Anthracnose of shade trees is caused by a group of related fungi whose development is favored by cool, wet conditions.
Anthracnose infections on some species, particularly sycamore and oak, are not restricted to leaves, but also infect the twigs and small shoots and buds, which can result in twig death and branch dieback.
Anthracnose fungi overwinter in infected leaves and twigs that fall to the ground or in cankered twigs that remain on the tree.
agebb.missouri.edu /pdc/diagnosticreports/anthracnose01.htm   (836 words)

  
 Anthracnose Diseases of Shade Trees, G94-1200-A   (Site not responding. Last check: 2007-10-19)
The disease is caused by the fungus Apiognomonia errabunda.
It is caused by the fungus Gnomonia leptostyla.
Anthracnose fungi overwinter in twigs and small branches on the tree and in leaves on the ground.
ianrpubs.unl.edu /plantdisease/g1200.htm   (1628 words)

  
 Soybean Anthracnose
Anthracnose is a fungal disease that sometimes occurs in late summer in Iowa.
Anthracnose is caused by the fungus Colletotrichum dematium var.
Symptoms of anthracnose are reddish veins, rolled leaves, and dark blotches on stems, pods and leaf petioles.
extension.agron.iastate.edu /soybean/diseases_anthracnose.html   (162 words)

  
 Canker - Wikipedia, the free encyclopedia
Canker and anthracnose are general terms for a large number of different plant diseases, characterised by broadly similar symptoms, the appearance of small areas of dead tissue, which grow slowly, often over a period of years.
Different cankers and anthracnoses are caused by a wide range of organisms, including fungi, bacteria, mycoplasmas and viruses.
Dogwood anthracnose, caused by the fungus Discula destructiva
en.wikipedia.org /wiki/Anthracnose   (309 words)

  
 Managing Turfgrass Diseases
Anthracnose foliar blight typically occurs during mid-summer and attacks the leaves and stems of most cool-season turfgrass species.
Anthracnose basal rot can occur during spring, summer, and fall and develops in the crowns, stem bases, and roots of annual bluegrass and creeping bentgrass, usually on golf course putting greens.
Anthracnose is likely to occur when plants are growing slowly (during periods of hot and cold temperatures), during overcast periods, and in high humidity conditions.
turfgrassmanagement.psu.edu /turfdis2.cfm   (1055 words)

  
 TreeHelp.com: Trees: Maple Diseases: Anthracnose
Blighting of leaf tissue caused by the sycamore anthracnose fungus.
Twig canker caused by the sycamore anthracnose fungus.
Microscopic spores of most anthracnose fungi are produced in infected tissues during April and May. The spores are blown and splashed to the buds and young leaves and, with favorable moisture conditions, penetrate and infect the swelling buds and unfolding leaves.
www.treehelp.com /trees/maple/maple-diseases-anthracnose.asp   (1018 words)

  
 Anthracnose of Strawberry - Tree Fruit & Berry Pathology
Anthracnose fruit rot is especially severe in annual cropping systems where berries are grown on plastic-mulched raised beds.
Anthracnose on various plants - disease cycle is similar for anthracnose of strawberry - reprinted from: Agrios G. Plant Pathology, 4th ed..Academic Press, San Diego, CA Conditions favoring Infection - Anthracnose is considered to be a warm-weather disease with an optimum temperature for plant infection by C.
Anthracnose fruit rot may be partly controlled with protective fungicide applications from flower bud emergence to harvest, however, fungicide programs have sometimes met with little to marginal success.
www.nysaes.cornell.edu /pp/extension/tfabp/santsmf.shtml   (1095 words)

  
 Anthracnose Diseases of Shade Trees
Anthracnose fungi overwinter in twigs and small branches on the tree and on fallen leaves.
Ash anthracnose is a common problem on white ash and, to a lesser extent, green ash.
Chemical sprays to control anthracnose are rarely justified except when the disease occurs in stressed or recently transplanted trees, or when the disease causes repeated defoliations.
www.uri.edu /ce/factsheets/sheets/anthractrees.html   (937 words)

  
 Dogwood Anthracnose
Anthracnose was first reported on the flowering dogwood in 1983 in New York, Connecticut, Pennsylvania, and New Jersey.
Anthracnose is more severe, and tree mortality is greater, on dogwoods in the shade.
There are plausible explanations for this apparent decrease of anthracnose: environmental conditions in the Northwest may have become unfavorable for the disease or some as yet unidentified change may have occurred in the pathogen itself.
www.mastergardenproducts.com /gardenerscorner/savedogwood.htm   (1656 words)

  
 Bean Anthracnose fact sheet
Bean anthracnose, caused by the fungus Colletotrichum lindemuthianum, is a major disease of beans (Phaseolus vulgaris L.), causing serious crop loss in many parts of the world.
Anthracnose development is unlikely on seed produced in semiarid areas, which have little rainfall and high temperatures during the growing season.
The use of resistant varieties, however, is complicated by the presence of several forms or races of the fungus, and plants resistant to one race may be susceptible to another Varieties must be tested where they are to be grown to determine their tolerance to the locally prevalent races.
vegetablemdonline.ppath.cornell.edu /factsheets/Beans_Anthracnose.htm   (947 words)

  
 Anthracnose Management Guidelines--UC IPM
Anthracnose is a group of diseases found on many deciduous and evergreen trees and shrubs; some trees such as sycamore, ash, and evergreen elms can be noticeably blighted.
Anthracnose fungi need water to be disseminated and infect; they do not spread under dry conditions.
Anthracnose fungi occur primarily on leaves and twigs.
www.ipm.ucdavis.edu /PMG/PESTNOTES/pn7420.html   (1220 words)

  
 Ash Anthracnose   (Site not responding. Last check: 2007-10-19)
Anthracnose is a common foliage disease of shade trees in Iowa.
Anthracnose is caused by a number of different but closely related fungi.
In most cases, although symptoms may appear serious, damage caused by anthracnose is minimal and does not seriously harm established shade trees.
www.extension.iastate.edu /Pages/plantpath/ashanthracnose.html   (301 words)

  
 Anthracnose of Turf
Anthracnose commonly occurs in conjunction with other diseases such as summer patch, Rhizoctonia brown patch and Pythium blight and is often a component in the so-called "bentgrass decline" complex.
Anthracnose may develop throughout the growing season, although it is more common in midsummer when cool-season turf is experiencing heat or drought stress.
Some pathologists consider the anthracnose fungus to be a weak pathogen at best, requiring substantial injury to the turfgrass plant for invasion.
www.oznet.ksu.edu /dp_hfrr/extensn/problems/turfanth.htm   (644 words)

  
 VDIN-011 - Anthracnose of Cucurbits
Anthracnose of cucurbits is widely distributed over the world wherever cucurbits are grown.
Anthracnose causes serious losses when susceptible cultivars of cucumber and watermelon are grown.
Anthracnose is caused by the fungus Glomerella lagenarium (Colletotrichum orbiculare).
www.ces.ncsu.edu /depts/pp/notes/Vegetable/vdin011/vdin011.htm   (828 words)

  
 Phytopathology: Anthracnose tracer: A spatiotemporal model for simulating the spread of anthracnose in a lupin field   (Site not responding. Last check: 2007-10-19)
For modeling the spread of anthracnose in lupin, a key consideration is that initial infection comes from the fungal spores or mycelia carried on or in the seed.
Two factors that influence the spread of anthracnose within a lupin crop are seasonal rainfall (anthracnose is spread by rain-- splash of spores) and varietal resistance.
The aims of this study are to (i) describe the model, (ii) test the model with observed disease incidence in three lupin cultivars of different anthracnose resistance, and (iii) apply the model for two climatic scenarios assessing the extent of the disease that develops from different initial levels of seed infection.
www.findarticles.com /p/articles/mi_qa4061/is_200210/ai_n9090759   (1256 words)

  
 Anthracnose Diseases of Trees
Anthracnose is most noticeable on trees in the landscape, but disease also occurs on trees growing in natural woodlots and forests.
Anthracnose symptoms are apparent from late spring to early summer, but additional cycles can result in damage that is visible later in the growing season.
Since most anthracnose fungi infect in spring as the buds are swelling and new leaves and shoots are expanding, the first fungicide spray is applied at or just prior to budbreak.
www.caes.state.ct.us /FactSheetFiles/PlantPathology/fspp066f.htm   (1192 words)

  
 Anthracnose   (Site not responding. Last check: 2007-10-19)
Anthracnose is a fungal disease most common in wetter fruit producing areas west of the Cascades.
Anthracnose was first reported in 1900 and has since been found in Nebraska, Idaho, California, Massachussetts, Maine, Michigan, Illinois, British Columbia, Denmark, Holland, and New Zealand.
New anthracnose cankers appear as small, circular spots that are red or purple when moist.
fruit.wsu.edu /Diseases/anthracnose.htm   (394 words)

  
 Anthracnose of Shade Trees - Plant and Pest Digital Library Project, Purdue University, West Lafayette, Indiana, USA
Anthracnose is the common name for a type of leaf spot and canker disease caused by certain kinds of fungi.
Premature leaf drop often occurs with anthracnose diseases, however, most of the trees infected with anthracnose usually show good resilience, and are not permanently damaged by this early season leaf blight.
Twig and branch cankers, shoot blight, and leaf blight are all symptoms of the fungus that causes sycamore anthracnose.
www.ppdl.org /dd/id/anthracnose-shade_trees.html   (484 words)

  
 Anthracnose: Kentucky Corn IPM
Anthracnose, caused by the fungus Colletotrichum graminicola, is often the first disease that shows up on corn.
The fungal pathogen Colletotrichum graminicola is the causal agent of anthracnose in corn.
Anthracnose is common early in the season in fields where debris from the previous year was left on the soil.
www.uky.edu /Agriculture/IPM/scoutinfo/corn/disease/anthrac/anthracn.htm   (405 words)

  
 Anthracnose--Garden Disease Control Leaflet 28   (Site not responding. Last check: 2007-10-19)
Anthracnose is one of the most common and unsightly diseases on maple trees in Vermont.
Anthracnose is caused by a number of closely related fungi, many of which are in the genera of Gnomonia or Gleosporium.
Anthracnose of shade trees is not permanently damaging to the health of the tree.
www.uvm.edu /extension/publications/gardendisease/gd28.htm   (341 words)

  
 Anthracnose Caused by Colletotrichum sp. on Pepper
Since the marketing of mature bell peppers that turn yellow or red, anthracnose has become a problem in seasons that are wet and warm.
Anthracnose is caused by fungi in the genus Colletotrichum, which is a very common group of plant pathogens, and they are responsible for diseases on numerous plant species worldwide.
Anthracnose is introduced into the field on infected transplants or it can survive between seasons in plant debris or on weed hosts.
edis.ifas.ufl.edu /PP104   (974 words)

  
 Sorghum Anthracnose Diseases
It provides a brief introduction to sorghum, its history, evolution and domestication; information on the anthracnose pathogen, its impact on sorghum production, and the relationship between the anthracnose pathogen and the sorghum plant.
The term 'anthracnose' literally means 'like coal', and is used in an aetiological sense for diseases caused by fungi in the genus Colletotrichum.
Anthracnose also occurs on the stalks, where it is known as stalk or red rot, panicles (head rot) and the grain.
www.sorghumanthracnose.org   (328 words)

  
 Anthracnose Found in Pintoba Pinto Beans
Anthracnose, a serious dry edible bean disease, has been recently detected in a number of north central North Dakota fields planted to Pintoba pintos.
Anthracnose was found primarily in Pintoba pintos with original seed source believed to be from Manitoba, Canada.
Bean anthracnose is not toxic and is not a food safety issue for human consumption, he adds.
www.ext.nodak.edu /extnews/newsrelease/2001/091301/14anthra.htm   (620 words)

  
 Anthracnose
At first, anthracnose generally appears on leaves as small and irregular yellow, brown, dark-brown, or fl spots.
Anthracnose on beans appears on leaves at all the growth stages of a plant but often appears in the early reproductive stages on stems, petioles, and pods.
Anthracnose, leaf blight, and stalk rot of corn.
www.oisat.org /pests/diseases/fungal/anthracnose.html   (1063 words)

  
 Connecticut Tree Protective Association - CTPA - Dogwood Anthracnose   (Site not responding. Last check: 2007-10-19)
Most anthracnose lesions (caused by the fungus Discula destructiva) appear on the leaves during the period of rapid leaf expansion in the spring; very few new lesions appear after the leaves are fully expanded, about six weeks after leaf emergence.
This indicates that most of the anthracnose infections occur in the spring and early summer, when the leaves are expanding, and suggests that the best time for application of protectant fungicides is during this time.
Defoliation or death of a dogwood tree due to anthracnose has not been observed, and cankers caused by anthracnose are extremely rare.
www.ctpa.org /dogwood_anthracnose.htm   (201 words)

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