Elevated Carbon Dioxide and Nitrogen Impact Wheat and Its Aphid Pest.

The rise in atmospheric carbon dioxide (CO) generally increases wheat biomass and grain yield but decreases its nutritional value. This, in turn, can alter the metabolic rates, development, and performance of insect pests feeding on the crop. However, it is unclear how elevated CO (eCO) and nitrogen (N) input affect insect pest biology through changes in wheat growth and tissue N content.