Postemergence control of broadleaf weeds in tomato (Lycopersicon esculentum)

Greenhouse and field experiments were conducted to evaluate the control of eastern black nightshade and velvetleaf in tomato with bentazon, metribuzin, pyridate, and acifluorfen. Metribuzin controlled velvetleaf but not eastern black nightshade, whereas pyridate controlled eastern black nightshade b...

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Bibliographic Details
Published in:Weed technology 1991-10, Vol.5 (4), p.739-745
Main Authors: McGiffen, Milton E., Masiunas, John B.
Format: Article
Language:English
Subjects:
abutilon theophrasti
acifluorfen
acifluorfene
bentazon
bentazone
Biomass
Broadleaf weeds
chemical control
control quimico
crop yield
desherbage
escarda
Field experiments
fitotoxicidad
Fruits
herbicidas
herbicide
Herbicide resistance
Herbicides
losses
lutte chimique
lycopersicon esculentum
metribuzin
metribuzina
metribuzine
perdidas
perte
Phosphates
phytotoxicite
phytotoxicity
piridato
Plants
pyridate
rendement
rendement des cultures
rendimiento
rendimiento de cultivos
solanum
Tomatoes
Weed control
yields
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Summary:Greenhouse and field experiments were conducted to evaluate the control of eastern black nightshade and velvetleaf in tomato with bentazon, metribuzin, pyridate, and acifluorfen. Metribuzin controlled velvetleaf but not eastern black nightshade, whereas pyridate controlled eastern black nightshade but not velvetleaf. A combination of metribuzin + pyridate controlled both weeds, but caused tomato injury 4 wk after application. Bentazon neither controlled the weeds nor injured the crop. Acifluorfen controlled both eastern black nightshade and velvetleaf. Diammonium phosphate and oxysorbic (5 POE) improved bentazon and acifluorfen activity against velvetleaf. Although initial crop injury from some treatments applied prior to fruit initiation was severe, the crop recovered and there were no reductions in fruit weight compared with the control. However applying acifluorfen with oxysorbic (5 POE) during fruit development reduced yield 50%.
ISSN:0890-037X
1550-2740
DOI:10.1017/S0890037X00033789