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Control of Aster (Aster subspicatus) and Birdsfoot Trefoil (Lotus corniculatus) in Cranberries (Vaccinium macrocarpon) with Napropamide

Published online by Cambridge University Press:  12 June 2017

Azmi Y. Shawa
Azmi Y. Shawa*
Affiliation:
Coastal Washington Res. and Ext. Unit, Long Beach, WA 98631
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Abstract

Napropamide [2-(a-naphthoxy) N,N-diethylpropionamide] applied to cranberry (Vaccinium macrocarpon Ait.) as a granular or wettable powder formulation at 20 kg/ha in March 1978 controlled aster (Aster subspicatus Nees) and birdsfoot trefoil (Lotus corniculatus L.) without any phytotoxicity to ‘McFarlin’ cranberry vines. Earlier application in February was ineffective, and late application in April injured the vines. Napropamide 10% granular applied at 14 kg/ha in March 1979 controlled aster 90% and birdsfoot trefoil 70%, and the 50% wettable powder formulation controlled aster 90% and birdsfoot trefoil 80%. Applications of granular napropamide at 12 kg/ha in March of 1979 or 1980 controlled both weeds 70%.

Keywords

Phytotoxicityherbicidetreatment timeformulation
Type
Research Article
Information
Weed Science , Volume 30 , Issue 4 , July 1982 , pp. 369 - 371
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

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