Revista Brasileira De Herbicidas 2017; 16(2): 103-111
Spray deposition and control effectiveness of glyphosate and saflufenacil associated with adjuvants
The extensive use of glyphosate has selected weeds of difficult control and one of the alternatives to overcome this problem is the association of different herbicides and adjuvants with glyphosate. The objective of the experiment was evaluate the effects on deposition and effectiveness of saflufenacil and glyphosate isolated or in mixture with addition of adjuvants applied in post-emergence of dayflower and morning glory plants. The experiments were conducted in a greenhouse. On the first experiment was adopted the factorial 3×5 for each species, in which factor A corresponded to the combination between the herbicides glyphosate, saflufenacil and glyphosate + saflufenacil, and the factor B the addition of the adjuvants Natur’al óleo®, Assist®, Aterbane‑ and Silwet L–77®. On the second experiment the adjuvant Dash® was added, therefore factorial 3×6. The herbicides showed similar deposition even with the addition of adjuvants. The isolate use of glyphsate even in mixture with adjuvants did not resulted in satisfactory control of dayflowers plants. The spray deposition did not influenced the control of dayflower and morning glory weeds. However, the application of saflufenacil isolated or in mixture with glyphosate provided better control for both weed studied.
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