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AgWeatherNet The growth rates of insects and diseases on plants are dependent upon the amount of heat the plant receives. Each insect or disease is adapted.

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Presentation on theme: "AgWeatherNet The growth rates of insects and diseases on plants are dependent upon the amount of heat the plant receives. Each insect or disease is adapted."— Presentation transcript:

1 AgWeatherNet The growth rates of insects and diseases on plants are dependent upon the amount of heat the plant receives. Each insect or disease is adapted to grow best over certain minimum temperatures and cease growth at its own maximum temperature. GDD is used to Predict when these pests/diseases are likely to show up in a given area Determine when to control pests/diseases Monitor landscapes for plant problems Single GDD

2 AgWeatherNet Single GDD The calculations of the GDD for a 24 hour period requires the following formula: (Max. temp + min. temp)/2 -(minus) base temperature=GDD

3 AgWeatherNet The Single GDD is a chart showing growing degree day (GDD) units with just the Base 50 Temperature. Single GDD Note: Be sure you have already selected your station and time interval before choosing this product.

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