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Factors Influencing the Foliar Uptake of Dimethomorph into Cucumber Induced by Fatty Alcohol Ethoxylate  

Yu, Ju-Hyun (Chemical Biotechnology Research Center, Korea Research Institute of Chemical Technology)
Publication Information
The Korean Journal of Pesticide Science / v.12, no.2, 2008 , pp. 118-126 More about this Journal
Abstract
In order to find the best compositions of the dimethomorph formulation containing fatty alcohol ethoxylate surfactants as an activator adjuvant and recommend the good management way of the formulations to allow an intended uptake rate, factors affecting foliar uptake of active ingredients into cucumber were investigated and compared each other. Among tested, the most important factors were air temperature in which plants were located after spraying of aqueous formulations containing activator adjuvant, and deposit of wax on the leaf surface of cucumber. Dimethomorph uptake was found to be increased by sunlight. When aqueous formulations had long-polyethoxylated fatty alcohol surfactants, the relative humidity of the room in which the plants were located after spraying with the formulations did not severely influence the foliar uptake. Maintaining a mild temperature and avoiding too strong sunlight after spraying with dimethomorph formulations were found to be resonable management strategies.
Keywords
cucumber; dimethomorph; environmental factor; foliar uptake; surfactant;
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