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Enhancement of Herbicidal Weed Control in Sweet Potatoes (Ipomoea batatas) with Cultivation

Published online by Cambridge University Press:  12 June 2017

N. C. Glaze
Affiliation:
U.S. Dep. Agric., Sci. Ed. Admin., Agric. Res.
S. A. Harmon
Affiliation:
Univ. of Georgia, Coastal Plain Exp. Stn., Tifton, GA 31793
S. C. Phatak
Affiliation:
Univ. of Georgia, Coastal Plain Exp. Stn., Tifton, GA 31793

Abstract

Six herbicides were evaluated at two rates on sweet potatoes [Ipomoea batatas (L.) Lam. ‘Georgia Red’, ‘Georgia Jet’] with and without cultivation from 1972 through 1976. Cultivation with a ground-driven rotary hoe about 2 weeks later improved the control of late-season broadleaf weeds such as Florida beggarweed [Desmodium tortuosum (Sw.) DC] and showy crotalaria (Crotalaria spectabilis Roth.). Cultivation improved weed control where vernolate (S-propyl dipropylthiocarbamate), DCPA (dimethyl tetrachloroterephthalate), and napropamide [2-(α-naphthoxy)-N,N-diethylpropionamide] were applied. The improved weed control in cultivated treatments resulted in increased sweet potato yields in 1972 and 1973, which also were the years with the highest weed populations.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

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References

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