Determination of Herbicide Residues in Edible Taro Parts and Wetland Flood Waters
Determination of Herbicide Residues in Edible Taro Parts and Wetland Flood Waters
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Date
1990-01
Authors
DeFrank, Joseph
Easton-Smith, Virginia A.
Leong, Gladys
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University of Hawaii
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Abstract
A preliminary experiment with seven preemergence herbicides identified oxyfluorfen as a promising herbicide for commercial taro (Colocasia esculenta) production in Hawaii. Oxyfluorfen was applied twice at 0.38, 0.56 and 1.11 kg/ha to taro grown under wetland flooded and upland conditions. No oxyfluorfen residues were found in plant tissues (limit of detection 0.02 ppm). Oxyfluorfen levels in water from treated lowland plots was determined. Trace levels present in flood waters immediately after treatment dissipated to undetectable levels (limit of detection, 0.001 ppm) within 24 hours.
Description
Keywords
Colocasia esculenta,
food contamination,
herbicide residues,
oxyfluorfen,
taro,
water pollution
Citation
DeFrank J, Easton-Smith VA, Leong G. 1990. Determination of herbicide residues in edible taro parts and wetland flood waters. In: Hollyer JR, Sato DM, editors. Proceedings of Taking Taro into the 1990s: A Taro Conference. Taking Taro into the 1990s: A Taro Conference; 1989 Aug 17; Hilo, Hawaii. Honolulu (HI): University of Hawaii. p. 46-48.
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3 pages
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University of Hawaii
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