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Epidemiology and host morphology in the parasitism of rush skeletonweed chondrilla juncea by puccinia chondrillina


, : Epidemiology and host morphology in the parasitism of rush skeletonweed chondrilla juncea by puccinia chondrillina. Phytopathology 74(6): 745-748

P. chondrillina was released in 1978 in the Spokane River Valley near Spokane, Washington [USA], in an attempt to control rush skeletonweed (Chondrilla juncea). The pathogen spread 3, 5 and 10 km from the original release site by 1980, 1981 and 1982, respectively. About 5, 11 and 10% of the leaf and stem surfaces were covered by uredia in 1980, 1981 and 1982, respectively. The rust significantly reduced number of flowers, seed viability and plant size each year but to date has not significantly reduced the population of rush skeletonweed.


Accession: 005375795

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Related references

Adams, E.; Line, R., 1984: Epidemiology and host morphology in the parasitism of rush skeletonweed by puccinia chondrillina. Phytopathology 74(6): 745-748

Adams, E.B.Jr, 1983: Use of a plant pathogen (Puccinia chondrillina) to control rush skeletonweed (Chondrilla juncea). Studies of Puccinia chondrillina released for the biological control of Chondrilla juncea in Washington, USA, showed that all stages of the rust disease were present in 1978 and 1979. Uredia and telia were observed in all yr and pyenia and aecia i...

Blanchette B.L.; Lee G.A., 1981: The influence of environmental factors on infection of rush skeletonweed chondrilla juncea by puccinia chondrillina. The effects of temperature and dew period on infectivity of P. chondrillina Bubak and Syd. and the effect of light intensity on uredospore germination were studied under controlled environmental conditions. When rush skeletonweed (C. juncea L.) pl...

Supkoff D.M.; Joley D.B.; Marois J.J., 1985: Effect of puccinia chondrillina on the population density of chondrilla juncea rush skeletonweed in california usa. Phytopathology 75(11): 1328

Adams, E.B.; Line, R.F., 1984: Epidemiology and host morphology in the parastism of rush skeletonweed by Puccinia chondrillina. P. chondrillina was released in 1978 in the Spokane River Valley near Spokane, Wash., in an attempt to control rush skeletonweed (Chondrilla juncea) and spread 3, 5 and 10 km from the original release site by 1980, 1981 and 1982, respectively. Abo...

Cheney, T.M.; Lee, G.A.; Belles, W.S., 1980: Influence of a rust (Puccinia chondrillina Bubak & Syd.) on the flowering, seeding, height and biomass of rush skeletonweed (Chondrilla juncea L.). Chondrilla juncea is a deep-rooted perennial that infests 3.5 X 106 acres of range and arable land in Idaho. The effects of Puccinia chondrillina on C. juncea were examined in rust infestations that had been established for 2 years, 1 year and 4 m...

Emge R.G.; Melching J.S.; Kingsolver C.H., 1981: Epidemiology of puccinia chondrillina a rust pathogen for the biological control of rush skeleton weed chondrilla juncea in the usa. Populations of rush skeleton weed (C. juncea) from California, Oregon, Washington and Idaho showed differential reactions to infection by the rust pathogen P. chondrillina. Among 7 collections of the pathogen, 4 different virulence patterns were e...

Adams, E.B.; Line, R.F., 1981: Biological control of Chondrilla juncea (rush skeleton weed) with Puccinia chondrillina in Washington. Puccinia chondrillina, an autoecious, macrocyclic rust, was introduced into Washington as a biological control agent of Chondrilla juncea (rush skeleton weed) in 1978. By 1980 the rust had spread 2 miles from the original release site. All spore f...

Espiau, C.; Riviere, D.; Burdon, J.J.; Gartner, S.; Daclinat, B.; Hasan, S.; Chaboudez, P., 1998: Host-pathogen diversity in a wild system: Chondrilla juncea-Puccinia chondrillina. The resistance structure of a Turkish population of the clonal, apomictic composite, Chondrilla juncea, and the pathotypic structure of a co-occurring population of its obligate rust pathogen, Puccinia chondrillina, was determined by sequential in...

Boerboom, C., 1993: Rush skeletonweed (Chondrilla juncea L.). The identification, biology and ecology of C. juncea is described. Control measures discussed include physical (tillage) and biological methods (using Puccinia chondrillina, Cystiphora schmidti and Aceria chondrillae).