Figure 2. Correlations of an aphid vector (Rhopalosiphum padi)'s feeding preference with the B/CYDV prevalence.

Plot show overall B/CYDV prevalence (infection by any virus) and the prevalences of two viruses (BYDV-PAV and CYDV-RPV) vectored by R. padi. The six grass hosts are as follows: Avena fatua (AF), Bromus carinatus (BC), Bromus hordeaceus (BH), Elymus glaucus (EG), Koeleria macrantha (KM), and Taeniatherum caput-medusae (TC). Correlations between feeding preference and overall prevalence of infection (r = 0.96), BYDV-PAV (r = 0.82), and CYDV-RPV (r = 0.96) were significantly greater than 0 (p<0.05).