RNA interference of an antimicrobial peptide, gloverin, of the beet armyworm, Spodoptera exigua, enhances susceptibility to Bacillus thuringiensis

► A gloverin gene (Seglv) was identified from Spodoptera exigua. ► Seglv was expressed in all developmental stages and tissues. ► Seglv showed an antibacterial activity against Gram-positive bacterium. ► Larvae treated with dsRNA became susceptible to Bt.