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Aminocyclopyrachlor: New Option for Trumpet Flower Control in Pastures Planta Daninha
REIS,F.C.; CASON,J.B.; TOLEDO,R.E.B.; SOTOMAYOR,J.F.; FREITAS,M.M.; VICTÓRIA FILHO,R..
ABSTRACT The species Tecoma stans, introduced to Brazil to be cultivated in urban centers as street trees, in parks and gardens, became important pasture weed. The mechanical control of this species is difficult because the plant presents a large number of sprouts when are mowed. Furthermore, the herbicides usually used in pasture have been shown to be inefficient to control it. This research evaluated the trumpet flower control effectiveness using a new herbicide (aminocyclopyrachlor) applied alone in increasing doses to the cut stump for the control of resprouts and mixed with metsulfuron-methyl in applications to intact plant leaves. The experiment with foliar applications used increasing doses of herbicides (aminocyclopyrachlor + metsulfuron-methyl)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Exotic species; Trumpet flower; Susceptibility to herbicides..
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000400759
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Susceptibility Among Populations of Crabgrass to Herbicides Inhibiting Photosystem II Planta Daninha
LUCIO,F.R.; BARROSO,A.A.M.; TOLEDO,R.E.B.; PITELLI,R.A.; VICTORIA FILHO,R..
ABSTRACT: Weed interference reduces the productive potential of crops. Among the control methods used, chemical ones occupy a major position. The repeated application of the same mechanism of action selects tolerant plants. Among the species that affect sugarcane, crabgrass is one of them. This study has aimed to know the tolerance of different populations of this species to herbicides inhibiting photosystem II. Three populations were collected, identified and submitted to the application of ametryn and diuron herbicides in ten different doses, and the experiment was conducted in a experimental design of complete randomized blocks with four repetitions in a factorial arrangement of 10 x 3 (10 doses x 3 populations), being one trial for each herbicide....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digitaria horizontalis; Ametryn; Diuron; Tolerance; Resistance.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100242
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