Report

Increase in crop losses to insect pests in a warming climate

See allHide authors and affiliations

Science  31 Aug 2018:
Vol. 361, Issue 6405, pp. 916-919
DOI: 10.1126/science.aat3466

You are currently viewing the editor's summary.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution

Warming, crops, and insect pests

Crop responses to climate warming suggest that yields will decrease as growing-season temperatures increase. Deutsch et al. show that this effect may be exacerbated by insect pests (see the Perspective by Riegler). Insects already consume 5 to 20% of major grain crops. The authors' models show that for the three most important grain crops—wheat, rice, and maize—yield lost to insects will increase by 10 to 25% per degree Celsius of warming, hitting hardest in the temperate zone. These findings provide an estimate of further potential climate impacts on global food supply and a benchmark for future regional and field-specific studies of crop-pest-climate interactions.

Science, this issue p. 916; see also p. 846