Weed management in peanut (Arachis hypogaea) with imazethapyr and metolachlor

Field studies at three sites in Georgia evaluated broadleaf weed and nutsedge management in peanut with PPI applications of imazethapyr and metolachlor and POST applications of paraquat in mixture with imazethapyr or bentazon. Imazethapyr at 36 g ai/ha applied PPI alone or in mixture with metolachlo...

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Bibliographic Details
Published in:Weed technology 1995-10, Vol.9 (4), p.807-812
Main Authors: Richburg, J.S. III (University Georgia, Tifton, GA.), Wilcut, J.W, Eastin, E.F
Format: Article
Language:English
Subjects:
ABIOTIC INJURIES
ACANTHOSPERMUM HISPIDUM
APPLICATION DATE
ARACHIS HYPOGAEA
BENTAZON
BENTAZONE
Biological and medical sciences
Broadleaf weeds
CASSIA OBTUSIFOLIA
CASSIA OCCIDENTALIS
CHEMICAL CONTROL
CHOIX DE LA DATE
Coastal plain soils
COMPOSITAE
CONTROL QUIMICO
CONVOLVULACEAE
Cotyledons
CROP LOSSES
CROP YIELD
CYPERUS ESCULENTUS
DATE DE TRAITEMENT
DESHERBAGE
EFFICACY
ELECCION DE LA EPOCA
ESCARDA
FECHA DE TRATAMIENTO
FITOTOXICIDAD
Fundamental and applied biological sciences. Psychology
GEORGIA (EUA)
GEORGIA (USA)
GEORGIE (EU)
GRAINE
HERBICIDAS
HERBICIDE
HERBICIDE MIXTURES
HERBICIDES
IPOMOEA LACUNOSA
JACQUEMONTIA TAMNIFOLIA
LUTTE CHIMIQUE
METOLACHLOR
METOLACHLORE
METOLACLORO
PARACUAT
PARAQUAT
Parasitic plants. Weeds
Peanuts
PERDIDAS DE LA COSECHA
PERTE DE RECOLTE
PHARBITIS
PHARBITIS HEDERACEA
PHARBITIS PURPUREA
Phytopathology. Animal pests. Plant and forest protection
PHYTOTOXICITE
PHYTOTOXICITY
RENDEMENT DES CULTURES
RENDIMIENTO DE CULTIVOS
SEEDS
SEMILLA
SIDA
SIDA SPINOSA
TIMING
TREATMENT DATE
WEED CONTROL
Weeds
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Summary:Field studies at three sites in Georgia evaluated broadleaf weed and nutsedge management in peanut with PPI applications of imazethapyr and metolachlor and POST applications of paraquat in mixture with imazethapyr or bentazon. Imazethapyr at 36 g ai/ha applied PPI alone or in mixture with metolachlor at 2750 g ai/ha controlled coffee senna; entireleaf, ivyleaf, pitted, smallflower, and tall morningglories; bristly starbur; and prickly sida better than metolachlor applied PPI. Yellow nutsedge control was generally higher where metolachlor was applied PPI. Postemergence control of the aforementioned species and sicklepod was similar with paraquat plus imazethapyr and paraquat plus bentazon. Peanut yields with paraquat plus imazethapyr and paraquat plus bentazon were similar. With one exception, peanut yields from imazethapyr PPI systems were higher than metolachlor PPI systems when POST herbicides were not used. Inclusion of metolachlor with PPI application of imazethapyr increased yields only at one location.
ISSN:0890-037X
1550-2740
DOI:10.1017/S0890037X00024258