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Customized Growing Degree Day Calculations and Forecasting

This document provides step by step instructions for calculating growing degree day status and viewing growing degree day forecasts available from the uspest.org website. The uspest.org website allows users to select a weather station near them and then set their own degree units, lower and upper thresholds for growing degree calculations. Most pre-calculated growing degree reports use a default of 50F as their lower threshold. Unfortunately, this is not accurate for many of the crops we grow in Oregon. Thus, the ability to custom calculate and generate forecasts for growing degree days is ideal. Check out uspest.org, follow these instructions and get ahead on your planning!

Betsy Verhoeven | Dec 2019 | Fact Sheet

How hormones and growth regulators affect your plants

Plant hormones and growth regulators are chemicals that affect flowering, aging, root growth, distortion and killing of organs, prevention or promotion of stem elongation, color enhancement of fruit, prevention of leafing and/or leaf fall, and many other conditions.

Ann Marie VanDerZanden | Jul 2012 | Article

Pacific NW Native Plants by Plant Community

Useful information about Western Hemlock-Douglas Fir Forest, Prairie, Scrub-Shrub Wetlands, and Mixed Deciduous Forest/Steep Dry Slope.

Lisa Albert | Jun 2014 | Article

Thinning: an important forest management tool

Thinning is the term foresters apply to removal of some trees from a stand to give others more room (and resources) to grow. It is a tool for improving timber value, making sites more productive, and — perhaps most ...

John Punches | Sep 2004 | Article