Field bindweed (Convolvulus arvensis) control with imazapyr

Sixteen applications of imazapyr and other herbicides were made to field bindweed from 1982 to 1986. Control with imazapyr was 89% or more 1 yr after treatment at 0.14 kg ai ha-1when plants were growing vigorously at application. Only 1 of 16 applications of imazapyr at 0.56 kg ha-1controlled less t...

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Bibliographic Details
Published in:Weed technology 1990-10, Vol.4 (4), p.771-775
Main Authors: Schoenhals, M.G. (Texas Agric. Exp. Stn., Bushland, TX), Wiese, A.F, Wood, M.L
Format: Article
Language:English
Subjects:
2,4-D
APPLICATION RATES
CHEMICAL CONTROL
CONTROL QUIMICO
CONVOLVULACEAE
CROP DAMAGE
CROP LOSSES
DESHERBAGE
DICAMBA
DOSE D'APPLICATION
DOSIS DE APLICACION
EFECTOS RESIDUALES
EFFET RESIDUEL
ESCARDA
FITOTOXICIDAD
HERBICIDAS
HERBICIDE
HERBICIDE MIXTURES
HERBICIDES
LUTTE CHIMIQUE
MADUREZ
MATURITE
MATURITY
MATURITY STAGE
PERDIDAS DE LA COSECHA
Perennial weeds
PERTE DE RECOLTE
PHYTOTOXICITE
PHYTOTOXICITY
PICLORAM
PICLORAME
PICLORAN
Planting
Planting seasons
Plants
RESIDUAL EFFECTS
Soil treatment
Soil water
Sorghum
SORGHUM BICOLOR
Summer
TEXAS
TRITICUM AESTIVUM
WEED CONTROL
Wheat
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Summary:Sixteen applications of imazapyr and other herbicides were made to field bindweed from 1982 to 1986. Control with imazapyr was 89% or more 1 yr after treatment at 0.14 kg ai ha-1when plants were growing vigorously at application. Only 1 of 16 applications of imazapyr at 0.56 kg ha-1controlled less than 90% regardless of plant vigor. Control at 0.56 kg ha-1was usually superior to that obtained with dicamba at 1.1 and 2.2 kg ae ha-1, and 2,4-D at 1.1 kg ae ha-1, as well as combinations of picloram with either 2,4-D or dicamba. All herbicides were less effective when applied to field bindweed with poor vigor. Winter wheat planted in the fall up to 122 days after application was injured 20 to 88% by imazapyr at 0.14 kg ha-1. Sorghum planted the next spring was injured 15% or less by imazapyr at 0.14 and 0.28 kg ha-1.
ISSN:0890-037X
1550-2740
DOI:10.1017/S0890037X00026373