NEWA Pest Management

What is NEWA?

The Network for Environment and Weather Applications (NEWA) is a system created by Cornell University that uses local weather data to predict when pests and diseases are most likely to occur.  This allows farmers to get a jump on the pests and protect their crops from significant damage.  In 2017, the Polk County Office of Agricultural Economic Development purchased a compatible weather station and installed it at TK Family Farm in Green Creek to allow county residents to access this powerful tool.


Where can I access the information?



Who can use it?

The system is completely open to anyone who wants to use it, and it currently has pest and disease models for the following crops:

  • Apples
  • Grapes
  • Tomatoes
  • Potatoes
  • Onions
  • Sweet Corn
  • Alfalfa
  • Turfgrass


How much does it cost to use?

It’s free!


Online Resources and Tutorials


I’m having trouble using the system – Who can I call?

  • Scott Welborn – Polk County Cooperative Extension Director


  • Jon Klimstra – TK Family Farm, Green Creek


  • Dan Olmstead – NEWA Coordinator, Cornell University