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Uptake,translocation, and control of trumpet flower (Tecoma stans) with aminocyclopyrachlor |
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| Authors: | Fabrícia Cristina Dos Reis Valdemar Luis Tornisielo João Batista Cason Ana Carolina Ribeiro Dias Melissa Freitas Jaime Felipe Sotomayor |
| Affiliation: | 1. Department of Plant Production, University of S?o Paulo, Piracicaba, Brazilfabriciareis@msn.com;3. Center of Nuclear Energy in Agriculture, University of S?o Paulo, Piracicaba, Brazil;4. Dupont do Brasil S/A, Paulínia, Brazil;5. Department of Agronomy, State University of Mato Grosso, Alta Floresta, Mato Grosso, Brazil;6. Department of Plant Production, Federal University of Mato Grosso, Cuiabá, Brazil;7. Secretariat for Higher Education, Science, Technology and Innovation, Quito, Ecuador |
| Abstract: | To gain a better understanding of the physiology of the herbicide aminocyclopyrachlor in young plants of trumpet flower, the uptake and translocation were evaluated after the application of herbicide. This was determined by treating individual leaves with formulated herbicides plus 14C-aminocyclopyrachlor after the application of the formulated herbicide. This experiment used a randomized experimental design with three replications. In addition, field studies were conducted to assess the effectiveness of foliar applications of aminocyclopyrachlor in association with metsulfuton-methyl. The plant absorbed 20% of the herbicide applied. The translocation percentage did not surpass 5% of the total amount applied. Only 1% of the herbicide applied was translocated to the roots. Rate of 40 + 13 g a.i. 100 L?1 of aminocyclopyrachlor+metsulfuron-methyl was effective to control T. stans. |
| Keywords: | Perennial weed synthetic auxin herbicide invasive plant pesticide absorption translocation trumpet flower ornamental plant weed control physiology herbicide |