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Weed Control in Direct-Seeded Tomato, Lycopersicon esculentum, for Transplants

Published online by Cambridge University Press:  12 June 2017

Norman C. Glaze
Norman C. Glaze*
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Tifton, GA 31793
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Abstract

Herbicides were evaluated alone, in combinations, or as sequential treatments on direct-seeded tomato each year from 1982 through 1984. Diphenamid at 4.5 kg ai/ha or napropamide at 1.1 to 2.2 kg ai/ha alone are registered but frequently do not control weeds adequately, particularly when yellow nutsedge and/or Florida pusley is common. Combinations or sequential treatments are necessary to overcome these weed problems in cropping systems. Metolachlor at 0.8 to 3.4 kg ai/ha injured direct-seeded tomato in proportion to the rate applied. Pendimethalin at 0.6 kg ai/ha also injured tomatoes. Fluazifop at 0.3 to 0.6 kg ae/ha and sethoxydim at 0.2 to 0.5 kg ai/ha effectively controlled annual grasses without injuring tomato seedlings. These herbicides would reduce competition and would increase harvesting efficiency where grass weeds are a problem.

Keywords

Diphenamid, N,N-dimethyl-α-phenylbenzeneacetamidefluazifop, (±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acidmetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidenapropamide, N,N-diethyl-2-(1-naphthalenyloxy)propanamidependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminesethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-oneFlorida pusley, Richardia scabra L. # RCHSCtomato, Lycopersicon esculentum Mill.yellow nutsedge, Cyperus esculentus L. # CYPESDiphenamidnapropamideyellow nutsedgeFlorida pusley
Type
Research
Information
Weed Technology , Volume 2 , Issue 3 , July 1988 , pp. 333 - 337
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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