Online Phenology Models and Degree-day Calculator
Weather station map: pan, zoom and click on pin (red pin shows current location):
Woodbridge CW4893 VA  station: C4893 APRSWXNET elev: 69 ft lat/long: 38.6108 -77.2614   
threecornered alfalfa hopper
 [legumes, grapes]

OSU IPPC model analysis
eggs immature damage adult
  info Model category:    
Model:   params 
Start:   (starting date based on: calendar date - set on Jan 1)
 End:     Note - start date was set to over-ride database default. Is that what you want? 
info  Output:  Condensed:  Show Daylength: 
Output preview: show future events:
              Weather station QA score 0.98; 0 days missing
Date Days from today DDs(F) Event
 Mar 17 6 days ago 450 OW adult first oviposition
 May 7 45 days away 780 OW adult peak OV
 Jun 2 71 days away 1180 F1 late instar nymphs
 Jun 14 83 days away 1430 First F1 adults
 Jul 14 113 days away 2180 F1 peak adults, also F2 young nymphs
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Oregon State University Integrated Plant Protection Center at OSU Integrated Pest Management PIPE Western
 Region Pest Management Center University of Utah Mesowest National Institute of Food and Agriculture
All data provided "as is" and users assume all risk in its use - see full disclaimer. All NWS derived data is not subject to copyright protection. This site hosted by the Integrated Plant Protection Center at Oregon State University with support from the USDA National Plant Diagnostic Network, The OSU Agricultural Experiment Station, various USDA CSREES/NIFA grants, USDA SARE, USDA RMA, and USDA IPM Centers - Western Region. Climate map data provided by OSU PRISM Group, real-time public weather data provided by U. Utah Mesowest and other networks including WSU AgWeatherNET, AGRIMET, CPS Adcon Networks, IFPNet Automata, California CIMIS, California PestCast, and others.
Previous versions online since May 16, 1997, new version 6.01, updated Dec 27, 2017
Contact Len Coop at 541-737-5523 if you have any questions about this program.