Dr. A. James Downer
Research ScientistUniversity of California, USA
Highest Degree
Ph.D. in Horticulture from University of California, USA
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Area of Interest:
Selected Publications
- Downer, J., J.Y. Uchida, M. Elliot and D.R. Hodel, 2009. Lethal palm diseases common in the United States. HortTechnol., 19: 710-716.
- Downer, A.J., D. Crohn, B. Faber, O. Daugovish, J.O. Becker, J.A. Menge and M.J. Mochizuki, 2008. Survival of plant pathogens in static piles of ground green waste. Phytopathol., 98: 547-554.
Direct Link | - Crohn, D.M., B. Faber, A.J. Downer and O. Daugovish, 2008. Probabilities for survival of glassy-winged sharpshooter and olive fruit fly pests in urban yard waste piles. Bioresource Technol., 99: 1425-1432.
CrossRef | - Faber, B.A., A.J. Downer, D. Holstege and M.J. Mochizuki, 2007. Accuracy varies for commercially-available soil test kits analyzing Nitrate Nitrogen, Phosphorus, Potassium and pH. HortTechnol., 17: 358-362.
- Hodel, D.R., J. Downer and D.R. Pittenger, 2006. Effect of leaf removal and tie-up on transplanted large mexican fan palms (Washingtonia robusta). Palms, 50: 76-81.
Direct Link | - Valenzuela-Solano, C., D.M. Crohn and J.A. Downer, 2005. Nitrogen mineralization from Eucalyptus yardwaste mulch applied to young avocado trees. Biol. Fertil. Soils., 41: 38-45.
CrossRef | - Downer, A.J. and B. Faber, 2005. Effect of Eucalyptus cladocalyx mulch on establishment of california sycamore (Platanus racemosa). J. Applied Hort., 7: 90-94.
Direct Link | - Pittenger, D.R., D.R. Hodel and A.J. Downer, 2004. Transplanting specimen palms: A review of common practices and research-based information. HortTechnol., 15: 15-19.
- Hodel, D.R., D.R. Pittenger and A.J. Downer, 2003. Effect of Leaf removal and tie up on juvenile transplanted canary island date palms Phoenix canariensis) and queen palms (Syagrus romanzoffiana). Palms, 47: 177-184.
Direct Link | - Downer. J. and D. Hodel, 2001. The effect of mulching and turfgrass on growth and establishment of Syagrus romanzoffiana (Cham.) Becc, Washingtonia robusta H.Wendl. and Archontophoenix cunninghamiana (H.Wendl.)H. Wendl. & Drude in the landscape. Sci. Hortic., 87: 85-92.
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