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Fertiactyl® is a foliar fertilizer with the potential to minimize the phytotoxicity effects caused by glyphosate drift in eucalyptus plants. As the interactions of the glyphosate and Fertiactyl® in tank mix on the plant behavior are not yet known, the objective was to evaluate the absorption and translocation of 14C-glyphosate, applied isolated and mixed in tank with Fertiactyl®, in young eucalyptus plants (clone I-144, Eucalyptus urophylla x E. grandis). The addition of Fertiactyl® to the mixture of 14C-glyphosate reduced the absorption by 94.3% in relation to the total absorbed at the end of the evaluation compared to plants treated only with 14C-glyphosate, i.e., Fertiactyl® protected the eucalyptus plants of the glyphosate intoxication by drift. The translocation rates from the treated leaves to the rest of the shoots and roots were low (<2% of the total recovered) in both treatments, suggest that restricted translocation is a mechanism of natural tolerance to glyphosate in plants of clone I-144. It is concluded that Fertiactyl®, mixed in the solution with glyphosate, protects young eucalyptus plants against glyphosate drift by reducing the amount of herbicide absorbed.

Citation

Rodrigo Cabral Adriano, Kassio Ferreira Mendes, Ricardo Alcántara-de la Cruz, Jefferson Luiz M do Nascimento, Lino Roberto Ferreira, Valdemar Luiz Tornisielo. Effect of Fertiactyl® on the absorption and translocation of 14C-glyphosate in young eucalyptus plants. Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes. 2021;56(3):235-240

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PMID: 33449826

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