Uptake, translocation, and control of trumpet flower (Tecoma stans) with aminocyclopyrachlor

• Published in: Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes Vol. 50; no. 10; pp. 727 - 733
• Main Authors: Reis, Fabrícia Cristina Dos, Tornisielo, Valdemar Luis, Cason, João Batista, Dias, Ana Carolina Ribeiro, Freitas, Melissa, Sotomayor, Jaime Felipe, Barroso, Arthur A. M., Filho, Ricardo VictóRia
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis 03.10.2015; Taylor & Francis Ltd
• Subjects: absorption; Anatomy & physiology; Bignoniaceae - drug effects; Bignoniaceae - metabolism; Flowers & plants; Flowers - chemistry; Flowers - metabolism; Herbicides; Herbicides - metabolism; invasive plant; ornamental plant; Perennial weed; pesticide; physiology herbicide; Plant Leaves - chemistry; Plant Leaves - metabolism; Plant Roots - chemistry; Plant Roots - metabolism; Pyrimidines - metabolism; synthetic auxin herbicide; Tecoma stans; translocation; trumpet flower; Weed Control; synthetic auxin herbicide; translocation; absorption; invasive plant; pesticide; ornamental plant; weed control; Perennial weed; physiology herbicide; trumpet flower
• ISSN: 0360-1234; 1532-4109
• DOI: 10.1080/03601234.2015.1048106

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 14 C-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.