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The Basis for Selectivity of Root-Applied Ethofumesate in Sugarbeet (Beta vulgaris) and Three Weed Species

Published online by Cambridge University Press:  12 June 2017

David N. Duncan ,
William F. Meggitt  and
Donald Penner
David N. Duncan
Affiliation:
Pesticide Res. Center, Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
William F. Meggitt
Affiliation:
Pesticide Res. Center, Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
Donald Penner
Affiliation:
Pesticide Res. Center, Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
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Abstract

The absorption, translocation, and metabolism of 14C-ethofumesate [(±)-2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate] in sugarbeet (Beta vulgaris L.), common ragweed (Ambrosia artemisiifolia L.), redroot pigweed (Amaranthus retroflexus L.), and common lambsquarters (Chenopodium album L.) were studied as possible bases for selectivity of preemergence-applied ethofumesate. The sensitive redroot pigweed and common lambsquarters plants translocated more 14C-ethofumesate from nutrient culture to the leaf tissue than did the tolerant sugarbeet and common ragweed. The radioactivity was more highly concentrated in sugarbeet and common ragweed roots. The rapid metabolism of ethofumesate by sugarbeet and common ragweed, particularly that which accumulated in the leaf tissue, appeared related to tolerance.

Keywords

Amaranthus retroflexusChenopodium albumAmbrosia artemisiifoliatranslocationmetabolism
Type
Research Article
Information
Weed Science , Volume 30 , Issue 2 , March 1982 , pp. 191 - 194
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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