Methods for controlling jointvetch and waterprimrose in rice fields in Puerto Rico
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Keywords

Rice--Weed control--Puerto Rico
Jointvetch
Waterprim-rose

How to Cite

Liu, L.-C., & Lozano, J. M. (1987). Methods for controlling jointvetch and waterprimrose in rice fields in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 71(1), 107-112. https://doi.org/10.46429/jaupr.v71i1.6929

Abstract

A trial was conducted at the Gurabo Substation, Gurabo, Puerto Rico, to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeschsynomene sensitiva Sw.) and waterprimrose [Ludgia erecta (L.) H. Hara] in rice. The sequential applications of either propanil [N-(3,4-dichlorophenyl) propanamide] or thiobencarb [S-(4-chlorphenyl) methyl diethylcarbamothioate] as early postemergent, followed by a mixture of 2,4-D [(2,4-dichlorophenoxy) acetic acid] and bentazon [3- (1 -methylethyl)-(1H)-2,1,3-benzothiadiazin-4-(3H)—one 2,2-dioxide] were found to be the two best treatments. Both treatments oufyielded all others except the weeded check. The sequential application of propanil followed by Collego™ (a mycoherbicide) gave only fair weed control and produced a poor yield.

https://doi.org/10.46429/jaupr.v71i1.6929
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