Efficacy and environmental runoff impact of alternative pre-emergent herbicides to diuron applied on trash blanketed ratoons

Fillols, E., Lewis, S., and Davis, A. (2018) Efficacy and environmental runoff impact of alternative pre-emergent herbicides to diuron applied on trash blanketed ratoons. In: Proceedings of the 40th Annual Conference of the Australian Society of Sugar Cane Technologists (40) pp. 281-292. From: ASSCT 2018: 40th Annual Conference of the Australian Society of Sugar Cane Technologists, 17-20 April 2018, Mackay, QLD, Australia.

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Abstract

THE EFFICACY OF alternative pre-emergent herbicides to diuron applied just after harvest on green trash blanketed ratoons was investigated in three field trials in the wet tropics, Far North Queensland. The study also compared the losses of the tested pre-emergent herbicides in runoff using rainfall simulations. The commercially available pre-emergent herbicide Bobcat®i-MAXX (imazapic + hexazinone), was as efficient as Barrage (diuron + hexazinone), while other tested active ingredients like imazapic, isoxaflutole and amicarbazone were effective only on some weed species. All tested herbicides were found in runoff water at levels aligned with their application rate. Herbicides applied at lower application rates such as imazapic and isoxaflutole had minimal environmental runoff footprints when compared with diuron. All tested alternatives were proven more environmentally friendly than diuron.

Item ID: 56680
Item Type: Conference Item (Research - E1)
ISSN: 0726-0822
Keywords: pre-emergent herbicides, runoff losses, trash blanket, eco-toxicology, diuron
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Funders: Sugar Research Australia (SRA), Queensland Department of Agriculture, Fisheries and Forestry
Date Deposited: 04 Mar 2019 23:57
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050209 Natural Resource Management @ 100%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 100%
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