Online Phenology Models and Degree-day Calculator
info El Monte CA  station: KEMT METAR elev: 295 ft  lat/long: 34.0831 -118.0331
  Select location by clicking on pin in Google Map above
 bronze birch borer
 [birch trees]

OSU OIPMC model analysis
immaturedamageadult
  info Model category: 

  Select model: (see list)   (model params) 

  Output in:

  Start:
  Starting date instructions: calendar date - set on Jan 1

  End:      Note - start date reset to database default. 
  Model validation status: Could benefit from data from additional years and regions Region(s): Developed with data from multiple US states and years

  info Forecast type: 

Model
preview:


future
events
Weather data QA score 0.96; 0 days missing
Date DDs Event
 Jan 16 12 days ago 250 Prepupal larvae in OW cells under bark
 Jan 24 4 days ago 400 Beginning of pupation
 Feb 12 15 days away 750 First adults exit trees
 Feb 25 28 days away 950 10% adult emergence
 Mar 7 38 days away 1100 50% adult emergence

        
 
  info  Output:  Simple header  No table  Graph precip 


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Oregon IPM Center at Oregon State University IPM PIPE The PRISM Group at OSU Western
Region Pest Management Center 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, this version 5.6, updated Dec 31, 2025
Contact Len Coop at coopl@science.oregonstate.edu if you have any questions about this program.