“…aphids and whiteflies), alterations in the metabolic pathways and plant nutritional quality can influence their feeding behaviour, biology and ability to transmit plant pathogens, which may differ depending on a specific host plant (Coviella & Trumble, 1999; Dáder, Fereres, Moreno, & Trębicki, 2016; Jones, 2016; Robinson, Ryan, & Newman, 2012; Trębicki et al., 2017; Zavala, Gog, & Giacometti, 2017). It has been shown that plants grown under elevated CO 2 favour population abundance, feeding efficiency and fitness of certain aphid (Guo et al., 2017; Xie et al., 2014) and whitefly species (Li, Liu, Xiao, Li, & Chen, 2011; Peñalver‐Cruz et al., 2019); other studies have demonstrated that other aphid species, such as Aulacorthum solani (Hughes & Bazzaz, 2001), and whiteflies (MEAM1) (Wang, Wang, Sun, & Ge, 2014) did not manifest any physiological or populational adverse effects under eCO 2 . Conversely, eCO 2 may negatively influence physiological (e.g.…”