ADSL and infection: Antimicrobial peptides (AMPs) such as Knottins are expressed constitutively in B. tabaci (Shatters et al. 2008) and are overexpressed after acquisition of begomoviruses and other pathogenic infections (Mahadav et al. 2008, 2009; Luan et al. 2011; Zhang et al. 2014; Shalev et al. 2016).