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  • Title: Movement of cyantraniliprole in plants after foliar applications and its impact on the control of sucking and chewing insects.
    Author: Barry JD, Portillo HE, Annan IB, Cameron RA, Clagg DG, Dietrich RF, Watson LJ, Leighty RM, Ryan DL, McMillan JA, Swain RS, Kaczmarczyk RA.
    Journal: Pest Manag Sci; 2015 Mar; 71(3):395-403. PubMed ID: 24771486.
    Abstract:
    BACKGROUND: Given the physical properties of insecticides, there is often some movement of these compounds within crop plants following foliar application. In this context, movement of two formulations of cyantraniliprole, an anthranilic diamide, was characterized for translocation to new growth, distribution within a leaf and penetration through the leaf cuticle. RESULTS: Upward movement of cyantraniliprole to new plant growth via the xylem was confirmed using (14) C-radiolabeled cyantraniliprole and from Helicoverpa zea mortality on tomato leaves that had not been directly treated. Within a leaf there was significant acropetal movement (base to apex) of cyantraniliprole, but no significant basipetal movement (apex to base). Translaminar movement, the ability of a compound to penetrate the leaf cuticle, was demonstrated in a variety of plants, both with and without the use of adjuvants, by treating only the adaxial surface of the leaf and measuring control of diamondback moth (Plutella xylostella), green peach aphid (Myzus persicae) and sweetpotato whitefly (Bemisia tabaci) exposed in clip cages to the untreated abaxial surface. CONCLUSION: The plant mobility and plant protection of cyantraniliprole is discussed with implications for use in insect resistance management and integrated pest management programs.
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