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Topic: Gymnosporangium

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		Cedar-Apple Rust is caused by Gymnosporangium juniperi-virginianae, a heteroecious, demicyclic rust fungus.
		Gymnosporangium nidus-avis causes a witch’s broom on juniper with the aecial stage on apple, hawthorn, quince, and other rosaceous hosts.
		Gymnosporangium globosum causes a small rounded gall on juniper with wedge-shaped gelatinous telial horns.
	www.cals.ncsu.edu /course/pp318/profiles/gymno/gym.htm (348 words)

	Gymnosporangium Rusts - Landscape Nursery and Urban Forestry - UMass Extension
		Gymnosporangium Rusts - Landscape Nursery and Urban Forestry - UMass Extension
		Common broadleaf hosts of cedar-apple rust (Gymnosporangium juniperi-virginianae) include apples and crabapples, and the usual conifer hosts are eastern red cedar, Rocky Mountain juniper, as well as a few Chinese, common and prostrate junipers.
		Gymnosporangium rust spores blow from galls or infected branches on the conifer host during rainy periods in April and May. If conditions are cool and wet when these spores land on the leaves, fruit or green shoots of susceptible broadleaf hosts, infection occurs.
	www.umassgreeninfo.org /fact_sheets/diseases/gymnosporangium.html (631 words)

	Gymnosporangium juniperi-virginianae (MushroomExpert.Com)
		Gymnosporangium juniperi-virginianae, known to foresters and apple farmers as Cedar-Apple Rust, is not the kind of fungus that usually crosses the radar screens of mushroom hunters.
		It is a "rust," but unlike many rusts it creates a large and, well, freaky-looking fruitbody during part of its life cycle.
		Gymnosporangium juniperi-virginianae has a complicated life cycle, and spends much of its time on apple trees, in the form of little yellowish blisters on the leaves.
	www.mushroomexpert.com /gymnosporangium_juniperi-virginianae.html (233 words)

	Gymnosporangium spp. (non-European)
		juniperi-virginianae is the most serious Gymnosporangium disease in the USA while G. clavipes and G. globosum can respectively be severe on apple fruit and on hawthorn seedlings, apple tree leaves (fruits are rarely attacked) and Juniperus.
		In common with other Gymnosporangium spp., several of which already occur in Europe, the severity of infection on the rosaceous host (generally the more important host) is determined by the proximity of infected alternate hosts.
		Laundon, G. (1977) Gymnosporangium asiaticum, Gymnosporangium clavipes, Gymnosporangium globosum, Gymnosporangium juniperi-virginianae, Gymnosporangium yamadae.
	www.vaxteko.nu /html/sll/eppo/EDS/E-GYMNSP.HTM (1500 words)

	cdaprust
		Cedar-apple Rust (Gymnosporangium juniperi-virginianae) - Infected red cedars and other junipers (members of the genus Juniperus) form reddish brown, round to kidney shaped galls of woody tissue, up to 2 inches in diameter, in response to infection by this pathogen.
		During moist spring weather, bright orange, cylindrical gelatinous tendrils are extruded from indentations on the galls.
		White tubes, about the size of pencil lead, protrude as far as 1/4 inch from the surface and bright orange spores are shed from these tubes and carried by wind back to junipers for fall infections.
	www.cce.cornell.edu /suffolk/grownet/tree-disease/cdaprust.htm (1201 words)

	Gymnosporangium spp. (non-European) (Site not responding. Last check: 2007-10-22)
		juniperi-virginianae is the most serious Gymnosporangium disease in the USA while G. clavipes and G. globosum can respectively be severe on apple fruit and on hawthorn seedlings, apple tree leaves (fruits are rarely attacked) and Juniperus.
		In common with other Gymnosporangium spp., several of which already occur in Europe, the severity of infection on the rosaceous host (generally the more important host) is determined by the proximity of infected alternate hosts.
		Laundon, G. (1977) Gymnosporangium asiaticum, Gymnosporangium clavipes, Gymnosporangium globosum, Gymnosporangium juniperi-virginianae, Gymnosporangium yamadae.
	sll.bibul.slu.se /html/sll/eppo/EDS/E-GYMNSP.HTM (1500 words)

	[No title]
		Gymnosporangium clavipes was readily distinguishable due to the fusiform swellings on twigs and larger branches (Fig.
		Gymnosporangium clavipes was found on all cultivars except Gray Gleam.
		Incidence of Gymnosporangium rusts on Juniperus scopulorum cultivars in an Ontario nursery in late May 1998.
	www.uoguelph.ca /~thsiang/rust/rust.htm (590 words)

	Gymnosporangium juniperi-virginianae, cause of cedar-apple rust, Tom Volk's Fungus of the Month for May 1999
		Gymnosporangium juniperi-virginianae, cause of cedar-apple rust, Tom Volk's Fungus of the Month for May 1999
		Let's start at the top of this diagram of the Gymnosporangium juniperi-virginianae life cycle with the telial spore horns, which are the most conspicuous part of the life cycle.
		Gymnosporangium juniperi-virginianae is a rust, which means it belongs in the class Urediniomycetes in the Basidiomycota.
	botit.botany.wisc.edu /toms_fungi/may99.html (1029 words)

	Amazon.com: Gymnosporangium (Site not responding. Last check: 2007-10-22)
		Intermingling gametophytic and sporophytic mycelium in Gymnosporangium bermudianum, by Henry Winfred Thurston (Unknown Binding - 1922)
		The pathogenicity and seasonal development of gymnosporangium in Iowa (Research bulletin) by Donald E Bliss (Unknown Binding - 1933)
		The genus Gymnosporangium;: A study made in the Botanical laboratory of Cornell University by Welton Marks Munson (Unknown Binding - 1901)
	www.amazon.com /s?ie=UTF8&keywords=Gymnosporangium&tag=tabularasa0f&index=blended&link_code=qs&page=1 (485 words)

	Untitled Document (Site not responding. Last check: 2007-10-22)
		The aeciospores are globose, with a thick, pale yellow wall (F); in mass, they appear bright orange.
		Like most rust fungi, Gymnosporangium clavipes requires two different hosts to complete its life cycle.
		Gymnosporangium globosum is a very similar rust; it differs mainly in having the aecia formed on leaves instead of fruits, and in the nature of the spore (teliospore) formed on Juniperus.
	www.plant.uga.edu /mycology-herbarium/details/Gymnoclav-Details.htm (208 words)

	GYMNOSPORANGIUM FACTS AND INFORMATION (Site not responding. Last check: 2007-10-22)
		In junipers, the fungus forms a ball about 2-4 cm in diameter which produces a set of orange tentacle-like spore tubes.
		Note that the alternative name 'cedar-apple' rust is a misnomer based on the misapplication of the name 'cedar' to some junipers; cedars are immune.
		Photo of ''Gymnosporangium juniperi-virginianae'' on an apple leaf
	www.velocitydatasystems.com /Gymnosporangium (203 words)

	Mountain ash juniper rust
		Fruiting of Gymnosporangium cornutum, the cause of mountain-ash-juniper rust, on the juniper host.
		Fruiting of Gymnosporangium cornutum, the casual agent of mountain-ash-juniper rust, on mountain-ash, the alternate host of this fungus.
		Additional information: The fruiting structures of this fungus are inconspicuous and rarely seen on the juniper host.
	www.glfc.forestry.ca /treedisease/mountain_ash_juniper_rust_e.html (224 words)

	Herb S. Aldwinckle - Publications
		Aldwinckle, H. Effect of leaf age and inoculum concentration on the symptoms produced by Gymnosporangium juniperi-virginianae on apple.
		Aldwinckle, H. Pathogenic races of Gymnosporangium juniperi- virginianae on apple.
		Aldwinckle, H. S., Lamb, R. C., and Gustafson, H. Nature and inheritance of resistance to Gymnosporangium juniperi-virginianae in apple cultivars.
	www.nysaes.cornell.edu /pp/faculty/aldwinckle/aldwinckle_pubs.html (4752 words)

	Cedar-Apple Rust factsheet
		All of these rust diseases are caused by species in the genus Gymnosporangium.
		Cedar-apple rust is caused by the fungus known as Gymnosporangium juniperi-virginianae.
		For information on additional pesticides registered to treat different Gymnosporangium rusts on specific host plants, obtain the latest copy of "Pest Management Around the Home" Part II, Miscellaneous Bulletin S74 (available through Cornell Cooperative Extension).
	plantclinic.cornell.edu /FactSheets/cedar-applerust/cedar-applerust.htm (816 words)

	Encyclopedia: Gymnosporangium
		Gymnosporangium is a fungus which infects alternately members of the genus Juniperus (junipers) and members of the family Rosaceae in the subfamily Maloideae (apples, pears, quinces, hawthorns, rowans and their relatives).
		Photo of Gymnosporangium clavariaeforme (http://www.iespana.es/caesaraugusta/Fotos/G/Gymnosporangium%20clavariaeforme.jpg) on Common Juniper Juniperus communis
		Click for other authoritative sources for this topic (summarised at Factbites.com).
	www.nationmaster.com /encyclopedia/Gymnosporangium (246 words)

	Cedar Rust Diseases of Ornamental Plants, HYG-3055-96 (Site not responding. Last check: 2007-10-22)
		There are a number of "cedar rust" diseases in which the fungus completes its life cycle on two plant hosts; one in the cypress family and one in the rose family (the rosaceous host).
		Discussed here are three common cedar rust diseases in the northeast U.S. Cedar apple rust (pathogen: Gymnosporangium juniperi-virginianae).
		The fungus alternates between Eastern red cedar (Juniperus virginiana) and mostly apple and crabapple.
	ohioline.osu.edu /hyg-fact/3000/3055.html (1027 words)

	Cedar Apple Rust: Plant Disease, Apple, Juniper, Cedar, Gymnosporangium juniperi-virginianae
		The causal agent of Cedar Apple Rust is the heteroecious basidiomycete Gymnosporangium juniperi-virginianae.
		Gymnosporangium clavipes has many alternate hosts including; mountain ach, chikeberry, cotoneaster, medlar, pear, photinis, quince, flowering quince, and service berry.
		The galls formed by Gymnosporangium clavipes are perennial increasing in size for year to year and may remain active for 20 years.
	nu-distance.unl.edu /homer/disease/Hort/Trees/ApCdRust.html (539 words)

	Gymnosporangium confusum Plowr., 1889 (a rust fungus)
		The Other Half: The telial stage of the Rust Fungus Gymnosporangium confusum
		Gymnosporangium confusum may also be covered by literature listed under:
		Gymnosporangium confusum may be associated with taxa listed at higher taxonomic level
	www.bioimages.org.uk /HTML/T127947.HTM (106 words)

	Apple Rusts
		All are caused by different species of the fungus Gymnosporangium and have various junipers and red cedars (Juniperus species) as an alternate host.
		Apples are generally most susceptible to infection by the rust fungi during the period from early bloom until about 30 days after bloom.
		Defoliation and deformation of fruits and twigs may occur on hawthorns.
	www.uri.edu /ce/factsheets/prints/applerust.html (787 words)

	Search for products to control Cedar Gall Rust (gymnosporangium) based upon pesticides registered in various states to ... (Site not responding. Last check: 2007-10-22)
		Cedar Gall Rust (gymnosporangium) is a 'pest' (an unwanted organism) that can be controlled through the use of pesticides.
		Pesticides, such as products to control Cedar Gall Rust (gymnosporangium), are regulated by State Departments of Agriculture.
		To find all products ever registered at EPA to control Cedar Gall Rust (gymnosporangium): www.kellysolutions.com/epadata (login as username: 'Guest' and password: 'Guest' - your results will be limited to 5 items).
	www.kellysolutions.com /searchpests/Cedar_Gall_Rust.htm (487 words)

	Search for products to control Cedar-apple Rust (gymnosporangium) based upon pesticides registered in various states to ... (Site not responding. Last check: 2007-10-22)
		Cedar-apple Rust (gymnosporangium) is a 'pest' (an unwanted organism) that can be controlled through the use of pesticides.
		Pesticides, such as products to control Cedar-apple Rust (gymnosporangium), are regulated by State Departments of Agriculture.
		To find all products ever registered at EPA to control Cedar-apple Rust (gymnosporangium): www.kellysolutions.com/epadata (login as username: 'Guest' and password: 'Guest' - your results will be limited to 5 items).
	www.kellysolutions.com /searchpests/Cedar-apple_Rust.htm (454 words)

	Search for products to control Hawthorn Rust (gymnosporangium) based upon pesticides registered in various states to ... (Site not responding. Last check: 2007-10-22)
		Hawthorn Rust (gymnosporangium) is a 'pest' (an unwanted organism) that can be controlled through the use of pesticides.
		Pesticides, such as products to control Hawthorn Rust (gymnosporangium), are regulated by State Departments of Agriculture.
		To find all products ever registered at EPA to control Hawthorn Rust (gymnosporangium): www.kellysolutions.com/epadata (login as username: 'Guest' and password: 'Guest' - your results will be limited to 5 items).
	www.kellysolutions.com /searchpests/Hawthorn_Rust.htm (454 words)

	Gymnosporangium
		Produced and published on the Web by the UK Department for Environment, Food and Rural Affairs (DEFRA), this Quarantine Information Card (QIC) provides information on Gymnosporangium rusts which affect families in the Cupressaceae and Rosaceae families.
		The QIC includes details of the hosts, distribution, symptoms, sources, development and disease status of Gymnosporangium.
		QICs have been produced for pests and diseases that are listed in EC plant health legislation.
	agrifor.ac.uk /browse/cabi/detail/948c8feb43835207a914b2b3ba03e112.html (164 words)

	Gymnosporangium (Site not responding. Last check: 2007-10-22)
		The spores must then go to a juniper or cedar to complete the life cycle.
		English words defined with "Gymnosporangium": genus Gymnosporangium, Gymnosporangium juniperi-virginianae.
		Source: compiled by the editor from various references; see credits.
	www.websters-online-dictionary.org /Gy/Gymnosporangium.html (387 words)

	Gymnosporangium - Wikpedia (Site not responding. Last check: 2007-10-22)
		Photo of Gymnosporangium clavariaeforme (http://www.iespana.es/caesaraugusta/Fotos/G/Gymnosporangium%20clavariaeforme.jpg) on Common Juniper Juniperus communis
		Photo of Gymnosporangium juniperi-virginianae (http://tolweb.org/tree/ToLimages/Gymnosporangium.jpg) on an apple leaf
		This page was last modified 18:07, 7 Feb 2005.
	www.bostoncoop.net /~tpryor/wiki/index.php?title=Gymnosporangium (219 words)

	cedar-apple rust, Gymnosporangium juniperi-virginianae (Uredinales: Pucciniaceae) @ Forestry Images
		cedar-apple rust, Gymnosporangium juniperi-virginianae (Uredinales: Pucciniaceae) @ Forestry Images
		Urediniomycetes > Uredinales > Pucciniaceae > Gymnosporangium juniperi-virginianae Schwein.
		Forestry Images is a joint project of The Bugwood Network and USDA Forest Service.
	www.forestryimages.org /browse/subthumb.cfm?sub=563 (79 words)

	John A. (Jack) Parmelee, Ph.D.
		Parmelee, J.A. The genus Gymnosporangium in Eastern Canada.
		Parmelee, J.A. The genus Gymnosporangium in Western Canada.
		Parmelee, J.A. Review of: A revised taxonomic account of Gymnosporangium.
	res2.agr.ca /ecorc/assoc/parm_j1_e.htm (545 words)

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