Post on 02-Jan-2019
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Plant Breeding and Genetics!Ecological and Sustainable Production! Turf Management!
Environmental Landscape & !Urban Forestry!
Viticulture! Therapeutic Horticulture!
Plant Pathology – Jennifer Parke!
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P. ramorum infection !
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Nursery and Christmas Trees- Landgren!
Evaluation of foliar fertilization products on Conifers!
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Nursery and Christmas Trees- Landgren!
Evaluation of foliar fertilization products over 2 years on Nordmann fir!
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Nursery and Christmas Trees- Landgren!
Evaluation of foliar fertilization products over 2 years on Nordmann fir!
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Nursery Integrated Pest Management- Rosetta!Heping Zhu, USDA-ARS and Sam Doane, J.Frank Schmidt & Sons Nursery looking at the Smart Sprayer retrofit!
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Ornamental Plant Breeding - Contreras!
Mara Friddle applying treatments to double!chromosomes !
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Ornamental Plant Breeding - Contreras!
Maple with agar caps containing oryzalin used to double chromosomes!
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OSU Nursery Outreach!
Luisa Santamaria teaches basic entomology in Spanish at OktoberPest 2010!
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Undergraduate Teaching - Regan!
Students dividing and potting propagules!
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Plant Pathology – Jennifer Parke and Nik Grünwald!
Phytophthora contamination!
Critical Control Points for Phytophthora species all four nurseries combined!
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Water Ground Pots Plant
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P. cactorum
P. cinnamomi
P. citricola
P. citrophthora
P. cryptogea
P. drechsleri
P. foliorum
P. gonapodyides
P. inundata
P. lateralis
P. nemorosa
P. megasperma
P. parsiana
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Plant Pathology – Jennifer Parke and Nik Grünwald!
Phytophthora from irrigation water!
P. citricola!5%!
P. citrophthora!3%! P. cryptogea!
5%!P. drechsleri!
2%!
P. gonapodyides!15%!
P. parsiana!11%!
P. syringae!1%!
P. taxon Forestsoil!6%!
P. taxon Oaksoil!2%!
P. taxon PgChlamydo!16%!
P. taxon Raspberry!1%!
P. taxon Salixsoil!12%!
P. taxon Salixsoil Mix!7%!
P. taxon Salixsoil/PgChlamydo!
1%!P. taxon Salixsoil/PgChlamydo mix!
15%!
P. taxon Walnut!1%!
Plant Pathology – Jennifer Parke and Nik Grünwald!
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Nursery and Christmas Trees- Landgren!
Adding amendments at planting time for Hydrangia!
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Nursery and Christmas Trees- Landgren!
Checking Noble fir plugs for root growth!
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Nursery Integrated Pest Management- Rosetta!
Stratiolaelaps predatory mite attacking root weevil larva!
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Plant Pathology – Jennifer Parke!
Phytophthora zoospores being released into water!
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Plant Pathology – Jennifer Parke!
Phytophthora ramorum spores germinating on a rhododendron leaf!
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Ornamental Plant Breeding - Contreras!
Graduate student, Joe Rothleutner, inoculating cotoneasters with fire blight!
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Ornamental Plant Breeding - Contreras!
Fire blight inoculation by cutting the two end leaves with !scissors dipped in inoculum!
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Ornamental Plant Breeding - Contreras!
Joe Rothleutner and Mara Friddle collecting data on disease severity!
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Ornamental Plant Breeding - Contreras!
Typical symptoms of infection include necrosis and “shepherd’s crook”!on new growth!
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Jennifer Parke, Jay Pscheidt, Rich Regan, Jan Hedberg, Nik Grunwald!
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Nursery Integrated Pest Management- Rosetta!
Tiny amber snails on side of container!
Amber snails can climb plants!
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Nursery Integrated Pest Management- Rosetta!
Derek Wells applying treatments!
Student intern Chris Mack shows amber snails to Clackamas Community College instructor Bruce Nelson!
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Nursery Integrated Pest Management- Rosetta!
Derek Wells and Clackamas Community College student Joan Dudney evaluate amber snail trial!
2011 amber snail trial on hydrangea!
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Ornamental Plant Breeding - Contreras!
Mara Friddle applying treatments to double chromosomes of cherrylaurels!
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Nursery Integrated Pest Management- R. Rosetta, V. Walton, and E. Miller!
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Nursery Integrated Pest Management- R. Rosetta, V. Walton, and E. Miller!
Damage to Linden from eriophyid mites!
OSU grad student Betsey Miller explains about the Linden mite research at Nursery Field Day!