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Boxwood Leafminer

Monarthropalpus flavus

Classification

Class
Insecta
Order
Diptera

Growing degree days (GDD), also called growing degree units (GDUs), are a heuristic tool in phenology. GDD are a measure of heat accumulation used by horticulturists, gardeners, and farmers to predict plant and animal development rates such as the date that a flower will bloom, an insect will emerge from dormancy, or a crop will reach maturity. GDD is credited to be first defined by Reaumur in 1735.

Distribution

(c) Katja Schulz, some rights reserved (CC BY), uploaded by Katja Schulz · CC-BY
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Countries in the Picchu catalog
United Kingdom · 12France · 2Germany · 1Netherlands · 1Switzerland · 1