Gloomy scale insects look like bumps on this Raleigh maple tree.  A 2-degree temperature difference can mean 200 times as many of these pests, according to N.C. State University researchers.
Gloomy scale insects look like bumps on this Raleigh maple tree. A 2-degree temperature difference can mean 200 times as many of these pests, according to N.C. State University researchers. Adam G. Dale University of Florida
Gloomy scale insects look like bumps on this Raleigh maple tree. A 2-degree temperature difference can mean 200 times as many of these pests, according to N.C. State University researchers. Adam G. Dale University of Florida