VOCos-receiver bean leaves exhibited a lower rate of oviposition of T. urticae than the VOCwt- receiver leaves for up to 3 days (P,0.05, Student’s t-test). Likewise, lower weight gain of common armyworm (M. separata) larvae was observed on maize plants 2 and 3 days after exposure to VOCos, compared to those exposed to VOCwt (P,0.05, Student’s t-test; Figure 2B).