Degree days in horticulture ?

Degree days in horticulture refer to a measure of the amount of heat accumulated over a certain period of time. This measurement is important in determining the growth and development of plants, as different plants have specific temperature requirements for optimal growth.

Degree days are calculated by subtracting a base temperature (usually around 50 degrees Fahrenheit) from the average daily temperature, and then summing these values over a specific period of time. This information can help horticulturists predict plant growth stages, pest activity, and overall plant health.

By tracking degree days, horticulturists can make informed decisions about when to plant, fertilize, irrigate, and harvest crops, as well as when to apply pest control measures. This data can also be used to monitor climate trends and predict future growing conditions.