+ Site Statistics
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Epidemiology cultivar susceptibility and chemical control of gymnosporangium fuscum in british columbia canada

, : Epidemiology cultivar susceptibility and chemical control of gymnosporangium fuscum in british columbia canada. Canadian Journal of Plant Pathology 6(1): 63-70

A series of experiments using pear and juniper hosts of G. fuscum, conducted in 1973-1983 in southwestern British Columbia, where the trellis rust disease is established in certain areas, provided information for use in establishing a nursery stock certification program. Heavily infected junipers were detected by the presence of leaf infections on indicator pear trees provided the junipers were within 150 m of an indicator tree. Light infections on juniper would be detected only if the pear trees were closer than 150 m to the source of inoculum. Aeciospores from pear leaf infections were shed between the end of Aug. and leaf fall, and were dislodged in large numbers by rain showers, the majority being shed between 1300 and 1800 h. Roto-Rod aeciospore trap counts 30 m from the source were only 2% of those 1.5 m from the source. Oxycarboxin applied to juniper prior to the formation of telia and to pear before the maturation of aecia markedly delayed the production of basidiospores and aeciospores. Mancozeb was an effective protectant when applied to juniper at the time of aeciospore release from pear. Differences in susceptibility among species and cultivars of junipers were observed. An integrated program combining the use of indicator pear trees, removal of infected pear leaves prior to aeciospore release, and protective applications of mancozeb would allow junipers to be grown safely within 100 m of lightly infected pears.

(PDF 0-2 workdays service)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 005375836

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Santa Maria, H. C.; Brugnoni, H. C., 1952: A. sheldoni, an Eriophyid on Citrus, new to the Fauna of Argentina. Investigations in 1952 showed that a deformation of the leaves and fruits of lemon that had become increasingly common in parts of the Province of Buenos Aires was due to infestation by Aceria sheldoni (Ewing), an Eriophyid that had not previously...

Gajbhiye, P. U.; Johar, K. S., 1985: Predicting body weight on the basis of body measurements in Magra sheep. For 295 ewes, body weight averaged 24.75+or-0.33 kg, body length 62.82+or-0.29 cm, withers height 59.29+or-0.23 cm, chest circumference 69.66+or-0.34 and hip width 16.18+or-0.11 cm. Body weight was significantly correlated with body length (0.74),...

Hu ZhenQi; Zhao YanLing; Zhao Shan; Xu XueLin; Bate' er, 2004: Analysis of reclamation feasibility in land reclamation planning. This paper discusses the importance of reclamation feasibility analysis (RFA) in land reclamation planning, and presents the concept and contents of RFA. A general model and comprehensive evaluation method of RFA with many indexes were developed....

Page G.; Salvadori A., 1969: Weight changes of semipalmated and least sandpipers pausing during autumn migration. Ontario Bird Banding 5(2): 52-58

Kaiser W., 1987: The stanzaic forms in the song of the yellow hammer and their development 2. Falke 34(5): 144-148

Chiba, Kan, 1998: Genetic polymorphism of human CYP2C subfamily. Japanese Journal of Pharmacology 79(SUPPL 1): 34P

Herrmann J.F.; Zenner H.P., 1981: Experiences with the blom singer prosthesis. Archives of Oto-Rhino-Laryngology 231(2-3): 838

Herman, J. E.; Bassan, H. M., 1975: Liver injury due to quinidine. The salient features of quinidine-induced liver injury are fever, a mixed type of hepatic injury, a rapid return of the enzyme tests to normal on withdrawal of quinidine and a shortening of the latency period on reexposure to the drug, with fever...

Schuster, L., 1911: Ueber den Balzruf einiger ostafrikanischer Turteltauben. Ornithologische Monatsberichte, 19 193-196

Nasca, S; Mignon, M; Gramatica, L; Accary, Jp; Bonfils, S., 1975: Secretin effect on gastrin, gastric secretion in dogs with chronic antral stimulation. American journal of physiology: 228 (6) 1775-1781