Weed Biology and Management (2009) 9, 300-306

Mohammad Hassan Rashed Mohassel, Akbar Aliverdi and Reza Ghorbani (2009)
Effects of a magnetic field and adjuvant in the efficacy of cycloxydim and clodinafop-propargyl on the control of wild oat (Avena fatua)
Weed Biology and Management 9 (4), 300-306
Abstract: The reduction of herbicide applications is a main research priority in recent years. One way to achieve this goal is by using adjuvants that can increase the efficacy of foliar-applied herbicides by reducing surface tension. Previous studies have shown that the surface tension of distilled water decreases under the influence of a magnetic field. In order to compare the effects of a magnetic field and Frigate in clodinafop-propargyl and cycloxydim in controlling wild oat and evaluating the surface tension, a dose-response greenhouse experiment was conducted by using 0, 8, 16, 32, 48, and 64 g ai ha^-1 of clodinafop-propargyl and 0, 15, 30, 60, 90, and 120 g ai ha^-1 of cycloxydim with Frigate and/or by passing them through a magnetic field. The magnetic field and Frigate caused a significant reduction in the surface tension of the herbicide solutions. But, Frigate was more effective in reducing the surface tension of the herbicide solutions, compared with the magnetic field. The magnetic field and Frigate increased the efficacy of clodinafop-propargyl and cycloxydim remarkably. Frigate increased the efficacy of the herbicides more than did the magnetic field. The magnetic field and Frigate collectively had more of an effect on the herbicides' efficacy than when they were applied individually. The magnetic field and Frigate were more effective in increasing the efficacy of clodinafop-propargyl than that of cycloxydim.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Reza Ghorbani

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Avena fatua (weed)