Uptake, translocation, and control of trumpet flower (Tecoma stans) with aminocyclopyrachlor.
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.
a Department of Plant Production , University of São Paulo , Piracicaba , Brazil.
Fabrícia Cristina Dos
FC
Reis
Valdemar Luis
VL
Tornisielo
João Batista
JB
Cason
Ana Carolina Ribeiro
AC
Dias
Melissa
M
Freitas
Jaime Felipe
JF
Sotomayor
Arthur A M
AA
Barroso
Ricardo
R
Victória Filho
D029402:Bignoniaceae / Q000187:drug effects* / Q000378:metabolism*; D035264:Flowers / Q000737:chemistry / Q000378:metabolism*; D006540:Herbicides / Q000378:metabolism*; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism*; D018517:Plant Roots / Q000737:chemistry / Q000378:metabolism*; D011743:Pyrimidines / Q000378:metabolism*; D058728:Weed Control
D006540:Herbicides; D011743:Pyrimidines; C560341:aminocyclopyrachlor
Perennial weed; absorption; invasive plant; ornamental plant; pesticide; physiology herbicide; synthetic auxin herbicide; translocation; trumpet flower; weed control