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Control of Dodder (Cuscuta spp.) with Pronamide

Published online by Cambridge University Press:  12 June 2017

J. H. Dawson*
Affiliation:
Sci. Ed. Admin., U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Center, Prosser, WA 99350

Abstract

Wettable powder and granular formulations of pronamide [3,5-dichloro(N-1,1-dimethyl-2-propynyl)benzamide], applied at 1.7 kg/ha to the soil surface or incorporated to depths of 1.3 to 7.5 cm, controlled dodder (Cuscuta indecora Choisy and C. campestris Yunck.) completely in the greenhouse for periods of 6 to 16 weeks. Seedlings emerged in pronamide-treated soil, but did not elongate normally and did not twine. Pronamide had very little activity as a vapor. In the field, the same rate applied to the soil surface and sprinkler irrigated or mechanically incorporated with the soil usually controlled dodder for about 1 month longer than did the standard herbicide, chlorpropham (isopropyl m-chlorocarbanilate) at 6.7 kg/ha. Pronamide at 6.7 kg/ha did not injure established alfalfa (Medicago sativa L.).

Type
Research Article
Copyright
Copyright © 1978 by the Weed Science Society of America 

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References

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