The word "phenology" comes from the Greek word "phaino ... such as propagation or weed control. Growing degree days (GDDs) are a measurement tool for tracking the accumulation of heat units ...

Flowers and trees bloomed up to two weeks earlier than normal, suggesting the allergy season will likely be longer and more ...

MR. J. EDMUND CLAKK'S important paper on “The History of British Phenology” (Quart. J. Roy. Meteorol. Soc., 62, January 1936) comes at a time when the six hundred or so phenological observers ...