Aphid antixenosis in cotton is activated by the natural plant defence elicitor cis-jasmone

► cis-Jasmone (CJ) induces defence VOC release in cotton, Gossypium hirsutum. ► VOCs from CJ-treated cotton repel cotton aphids, Aphis gossypii. ► Emissions of DMNT and TMTT by cotton increase following CJ treatment. ► DMNT and TMTT emissions are enhanced by addition of A. gossypii.