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Microfoil Boom Application of Picloram and 2,4-D for Leafy Spurge (Euphorbia esula) Control

Published online by Cambridge University Press:  12 June 2017

Rodney G. Lym
Rodney G. Lym*
Affiliation:
Crop Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105
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Abstract

Leafy spurge control with picloram and various 2,4-D formulations was evaluated to determine the optimum treatment combination and carrier volume for aerial application using a microfoil boom. Leafy spurge control was similar when the same herbicide treatments were applied at 94 and 47 L/ha but declined at 23 L/ha. Leafy spurge control was better when similar herbicide treatments were applied with a one-row microfoil nozzle boom compared to a two-row nozzle. Leafy spurge control 12 months after treatment tended to be better with picloram at 0.28 and 0.56 kg ae/ha applied with 2,4-D mixed amine compared to picloram plus 2,4-D dimethylamine or oil-soluble amine formulations during average growing conditions. However, picloram plus 2,4-D oil-soluble amine was the best formulation in dry conditions.

Keywords

2,4-D (2,4-dichlorophenoxy)acetic acidpicloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acidleafy spurge, Euphorbia esula L. #3 EPHESRangeland weed controlaerial brush controlEPHES
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 393 - 398
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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