1 / 24

Cucurbit Downy Mildew – Final Report

Cucurbit Downy Mildew – Final Report. Student Author - Anonymous. Project overview. Images courtesy of http://www.cals.ncsu.edu/plantpath/extension/fact_sheets/Cucurbits_-_Downy_Mildew.htm. Image courtesy of http://www.apsnet.org/publications/apsnetfeatures/Pages/DownyMildew.aspx . policy.

dieter
Download Presentation

Cucurbit Downy Mildew – Final Report

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Cucurbit Downy Mildew – Final Report Student Author - Anonymous

  2. Project overview Images courtesy of http://www.cals.ncsu.edu/plantpath/extension/fact_sheets/Cucurbits_-_Downy_Mildew.htm Image courtesy of http://www.apsnet.org/publications/apsnetfeatures/Pages/DownyMildew.aspx

  3. policy • Resistant Cultivars • Fungicides • Growing Methods http://www.hort.cornell.edu/hightunnel/crops/vegetables/cucurbits.htm http://ag.arizona.edu/aes/yac/research.html

  4. data • Disease Count in NC • El Nino Southern Oscillation • Pacific – North American Pattern • North Atlantic Oscillation • Atlantic Multidecadal Oscillation • Atlantic Meridional Mode • Atlantic SST Dipole Mode

  5. YEArs

  6. Indices 1 PNA, R = 0.11 NAO, R = -0.19 AMO, R = 0.19

  7. Indices 2 AMM, R = -0.12 DM, R = 0.02 ENSO, R = 0.08

  8. El Nino Southern Oscillation

  9. Pacific/North American pattern

  10. North Atlantic oscillation

  11. Amo & amm

  12. Dipole mode

  13. eofs http://climlab.meas.ncsu.edu/EPA-Project1/Wind_Composite/index_prec.html

  14. composites http://www.esrl.noaa.gov/psd/cgi-bin/data/composites/printpage.pl

  15. Composites http://www.esrl.noaa.gov/psd/cgi-bin/data/composites/printpage.pl

  16. Models and projections • ENSO • Modelling • Steady progress • Still systematic errors • Projections • No change expected in frequency • Range of possibilities in strength

  17. Models and projections • PNA and NAO • PNA SST dependent • NAO not fully understood • Good skill Short time scale, winter • Skill drops as time increase • NAO possible positive increase

  18. Models and projections • AMO, AMM and DM • Influenced by Atlantic SST • Little information • Recent Oceanic improvements • Still many issues • Thermohaline

  19. implications • Current ENSO forecasts • Seasonal indication • Future ENSO forecasts • Awareness of changes in strength • Future PNA and NAO forecasts • Prediction possibilities • NAO increase • Increase in positive phases • Future AMM, AMO and DM • More study needed

  20. recommendations • Resistant cultivars - whenever possible • Growing methods • good years • spacing can be closer together, • less suitable ground can be planted, • overhead irrigation can be used. • bad years • larger spaces between plants, • less suitable ground should not be used • overhead irrigation should be used sparingly.

  21. recommendations • Chemical Control • Good years • cheaper contact fungicides • Less frequently sprayed • Bad years • Systemic fungicides • More frequently sprayed

  22. Conclusions • ENSO, PNA, NAO and DM all influence • Recommendations given • More useful when predictions improve • More data needed • Other influences and indices to be considered

  23. Questions?

  24. references • Austin Bourke, P. M. (1964). Emergence of potato blight, 1843-46. Nature, 203, 805-808. • Becker, R and Miller, S., A., (2009), Managing Downy Mildew in Organic and Conventional Vine Crops, Ohio State Fact Shhet – Agricultural and Natural Resources, http://ohioline.osu.edu/hyg-fact/3000/pdf/3127.pdf • Brown, J. K., & Hovmøller, M. S. (2002). Aerial dispersal of pathogens on the global and continental scales and its impact on plant disease. Science, 297(5581), 537-541. • Colucci, S.J. and G.J. Holmes. 2010. Downy Mildew of Cucurbits. The Plant Health Instructor. DOI: 10.1094/PHI-I-2010-0825-01, http://www.apsnet.org/edcenter/intropp/lessons/fungi/Oomycetes/Pages/Cucurbits.aspx • Colucci S.J. & G.J. Holmes, (2007). Cucurbits – Downy Mildew, NC State University- Department of Plant Pathology, http://www.cals.ncsu.edu/plantpath/extension/fact_sheets/Cucurbits_-_Downy_Mildew.htm accessed on 18/03/2013 • Crop Science, (2001), Downy Mildew of Cucurbits, University of Illinois Extension – report on Plant Disease, http://web.aces.uiuc.edu/vista/pdf_pubs/927.PDF • Dominguez, F., Cañon, J., & Valdes, J. (2010). IPCC-AR4 climate simulations for the Southwestern US: the importance of future ENSO projections. Climatic Change, 99(3-4), 499-514. • Egel, D., (2008), Downy Mildew of Pumpkin, Purdue Extension – Vegetable Diseases, http://www.extension.purdue.edu/extmedia/BP/BP-140-W.pdf • Ivors, K.L. & Mila, A.L., (2007), Tobacco – Blue Mold, NC State University- Department of Plant Pathology, http://www.cals.ncsu.edu/plantpath/extension/fact_sheets/Tobacco_-_Blue_Mold.htm accessed on 17/03/2013 • IPCC (2007) – the following three chapters were used. • Chapter 6: Jansen, E., J. Overpeck, K.R. Briffa, J.-C. Duplessy, F. Joos, V. Masson-Delmotte, D. Olago, B. Otto-Bliesner, W.R. Peltier, S. Rahmstorf, R. Ramesh, D. Raynaud, D. Rind, O. Solomina, R. Villalba and D. Zhang, 2007: Palaeoclimate. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. • Chapter 8: Randall, D.A., R.A. Wood, S. Bony, R. Colman, T. Fichefet, J. Fyfe, V. Kattsov, A. Pitman, J. Shukla, J. Srinivasan, R.J. Stouffer, A. Sumi and K.E. Taylor, 2007: Cilmate Models and Their Evaluation. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M.Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA • Chapter 10: Meehl, G.A., T.F. Stocker, W.D. Collins, P. Friedlingstein, A.T. Gaye, J.M. Gregory, A. Kitoh, R. Knutti, J.M. Murphy, A. Noda, S.C.B. Raper, I.G. Watterson, A.J. Weaver and Z.-C. Zhao, 2007: Global Climate Projections. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. • Johansson, Å. (2007). Prediction skill of the NAO and PNA from daily to seasonal time scales. Journal of climate, 20(10), 1957-1975. • Keeling, M. J., Woolhouse, M. E., Shaw, D. J., Matthews, L., Chase-Topping, M., Haydon, D. T. & Grenfell, B. T. (2001). Dynamics of the 2001 UK foot and mouth epidemic: stochastic dispersal in a heterogeneous landscape. Science, 294(5543), 813-817. • Mack, R. N., Simberloff, D., Mark Lonsdale, W., Evans, H., Clout, M., & Bazzaz, F. A. (2000). Biotic invasions: causes, epidemiology, global consequences, and control. Ecological applications, 10(3), 689-710. • Main, C. E., Keever, T., Holmes, G. J., & Davis, J. M. (2001). Forecasting long-range transport of downy mildew spores and plant disease epidemics. American Phytological Society Net (APSnet). (http://www.apsnet.org/publications/apsnetfeatures/Pages/DownyMildew.aspx) • Ojiambo, P. S., & Holmes, G. J. (2011). Spatiotemporal spread of cucurbit downy mildew in the eastern United States. Phytopathology, 101(4), 451-461. • Ojiambo, P. S., Holmes, G. J., Britton, W., Keever, T., Adams, M. L., Babadoost, M., Bost, S. C., Boyles, R., Brooks, M., Damicone, J., Draper, M. A., Egel, D. S., Everts, K. L., Ferrin, D. M., Gevens, A. J., Gugino, B. K., Hausbeck, M. K., Ingram, D. M., Isakeit, T., Keinath, A. P., Koike, S. T., Langston, D., McGrath, M. T., Miller, S. A., Mulrooney, R., Rideout, S., Roddy, E., Seebold, K. W., Sikora, E. J., Thornton, A., Wick, R. L., Wyenandt, C. A., and Zhang, S.(2011). Cucurbit downy mildew ipmPIPE: A next generation web-based interactive tool for disease management and extension outreach. Online. Plant Health Progress doi:10.1094/PHP-2011-0411-01-RV. • Semazzi, F., H, Bowden, J., and Davis, N., (2008) An Urban-Scale AQ Planning Tool for Global Change Adaptation NARR EOF Ananlysis, EPA Report.

More Related