Growing Degree Days Calculator

Base temperatures used in calculating GDD vary depending on the type of plant or pest that is being monitored. This number represents the temperature at which you will typically begin to see plant or pest growth. The base temperature most often used in calculations 10°C, because it is the temperature when active growth begins for most organisms. . However, some plants or pests can thrive in cooler environments, and in that case, 0°C is best used in calculations. For more information on which base temperature best suits your turf management plan, please contact your local extension service or Syngenta territory manager.

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