Movement of Cyazypyr™ (DPX-HGW86, Cyantraniliprole) formulations in plants after foliar applications and its impact on control of sucking and chewing insects

DuPont Cyazypyr™ (DPX-HGW86, cyantraniliprole) is the first diamide insecticide that controls a cross-spectrum of chewing and sucking pests. The focus of the current study was to characterize movement of Cyazypyr formulations in crop plants following foliar application, which included: translocation to new leaves, movement within a leaf, and penetration though the leaf cuticle. Upward movement of Cyazypyr to new plant growth via the xylem was confirmed using C14 radiolabeled sample and by assessing Helicoverpa zea mortality on tomato leaves that had not been treated. Within a leaf, there was significant acropetal movement (base to apex) of Cyazypyr, but no significant basipetal movement. Translaminar movement, the ability of a compound to penetrate the leaf cuticle, was demonstrated in a variety of crops, both with and without the use of adjuvants, by treating one surface of the leaf and measuring control of aphids, caterpillars, or whiteflies exposed to the other surface. Cyazypyr’s plant mobility and cross-spectrum pest control will make it a useful tool for plant protection in many IRM and IPM programs.