Figure 3. Cumulative frequency of apterous adult aphids of three species leaving the host plant (either through active movement or as a result of chill coma induction) when subjected to a declining temperature regime from 20°C to −10°C at 0.75°C min^-1.

Metopolophium dirhodum (dark grey triangles) (n = 51), Rhopalosiphum padi (black squares) (n = 51) and Sitobion avenae (light grey circles) (n = 53).