Managing Pesticide Managing Pesticide Application in Variable Application in Variable Weather Conditions Weather Conditions Paul Jepson Paul Jepson Integrated Plant Protection Center Integrated Plant Protection Center Oregon State University Oregon State University Presentation to EPA Region 10, Seattle, April 19 th , 2006
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Managing Pesticide Application in Variable Weather Conditions
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Managing Pesticide Managing Pesticide Application in Variable Application in Variable
Seasonal weather are available on state climatology web sites e.Seasonal weather are available on state climatology web sites e.g. g. wind roseswind roses
Wind Roses, Eugene, Jan-March
Direction of Direction of concern: Sconcern: S--NN
Wind Roses Eugene Apr-JuneDirections of concern: SDirections of concern: S--N & NN & N--S (April), S (April),
increasingly Nincreasingly N--S through JuneS through June
Wind Roses, Eugene, JulyWind Roses, Eugene, July--SeptSeptDirections of concern: NDirections of concern: N--S predominates, S predominates, but becoming more mixed by late summerbut becoming more mixed by late summer
Calendar ofCalendar of LOWLOW risk,risk, CAUTIONCAUTION andand HAZARDHAZARD for for wind, thermal and inversion drift, Eugenewind, thermal and inversion drift, Eugene
Buy a handBuy a hand--held unit for temperature, humidity, wind speed (hunting catalogheld unit for temperature, humidity, wind speed (hunting catalogs)s)
Oregon State University IPPC Oregon State University IPPC Online Programs: IPM Decision Online Programs: IPM Decision
Support ToolsSupport ToolsPaul Jepson & Leonard CoopPaul Jepson & Leonard Coop
Integrated Plant Protection CenterIntegrated Plant Protection CenterOregon State UniversityOregon State University
DegreeDegree--day calculator and models integrated with 6,300+ day calculator and models integrated with 6,300+ weather stationsweather stations
Len CoopLen Coop -- IPPC, Oregon State University IPPC, Oregon State University Christopher DalyChristopher Daly, Director, Spatial Climate Analysis Service, Oregon State , Director, Spatial Climate Analysis Service, Oregon State UniversityUniversityAlan FoxAlan Fox –– Foxweather, LCC Foxweather, LCC Gary Grove Gary Grove -- Washington State University Washington State University Doug GublerDoug Gubler –– University California University California Paul Jepson Paul Jepson –– Director, IPPC, Oregon State University Director, IPPC, Oregon State University Ken JohnsonKen Johnson –– Botany and Plant Pathology, Oregon State University Botany and Plant Pathology, Oregon State University Walter MahaffeeWalter Mahaffee –– USDAUSDA--ARS ARS William PfenderWilliam Pfender –– USDAUSDA--ARS ARS Fran PierceFran Pierce -- Director, Center for Precision Agricultural Systems, WashingtonDirector, Center for Precision Agricultural Systems, WashingtonState UniversityState UniversityJoyce StrandJoyce Strand -- University of California University of California -- Information Systems Manager and Information Systems Manager and MeteorologistMeteorologistCarla S. Thomas Carla S. Thomas --National Plant Diagnostic Network, University California National Plant Diagnostic Network, University California
W IPMC Weather WorkgroupW IPMC Weather Workgroup
PRISM International Climate MappingPRISM International Climate Mapping
Western Canada
Pacific BasinChina
Taiwan
MongoliaEuropean Alps
Temperature, Rainfall, Humidity Maps: all maps are stateTemperature, Rainfall, Humidity Maps: all maps are state--ofof--thethe--art, and are used as the standard for evaluation of other art, and are used as the standard for evaluation of other
Now available nationNow available nation--wide wide e.g. 50 Degree threshold e.g. 50 Degree threshold –– Pennsylvania Jan. 1 Pennsylvania Jan. 1 –– June 13, 2005June 13, 2005