Olfactory‐mediated chemotaxis toward a key host plant leaf volatile in the fall webworm

We identified Z3HAc as a key attractant in host plants for H. cunea larvae and demonstrated that the receptor HcOr3 likely mediates host plant recognition. This work enhances our understanding of the molecular basis of host-seeking behavior in this invasive pest and highlights HcOr3 as a promising target for species-specific pest control. Our findings elucidate the link between olfactory perception and chemotactic response to natural plant volatiles in folivorous insects. © 2025 Society of Chemical Industry.