Postemergence activity of isoxaben

Barnyardgrass and many broadleaf weeds were severely stunted by POST applications of isoxaben. Most grasses were only moderately affected by isoxaben at rates up to 1 kg/ha. POST activity was enhanced by soil interception, but evident with foliar interception alone. Cell swelling in stems and in int...

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Bibliographic Details
Published in:Weed technology 1994-04, Vol.8 (2), p.183-189
Main Authors: Schneegurt, M.A, Roberts, J.L, Bjelk, L.A, Gerwick, B.C
Format: Article
Language:English
Subjects:
ABUTILON THEOPHRASTI
Agronomy. Soil science and plant productions
ALOPECURUS MYOSUROIDES
AMARANTHUS
AMARANTHUS RETROFLEXUS
APLICACION FOLIAR
APPLICATION FOLIAIRE
AVENA FATUA
Biological and medical sciences
Biosynthesis
BRASSICA
BRASSICA KABER
BRASSICA NAPUS
Broadleaf weeds
CHEMICAL CONTROL
CONTROL QUIMICO
DESHERBAGE
ESCARDA
FALLOPIA CONVOLVULUS
FOLIAR APPLICATION
Fundamental and applied biological sciences. Psychology
HELIANTHUS ANNUUS
HERBICIDAS
HERBICIDE
HERBICIDES
Leaves
LUTTE CHIMIQUE
Mustards
Parasitic plants. Weeds
PHARBITIS HEDERACEA
Phytopathology. Animal pests. Plant and forest protection
Plant growth
Plants
POLYGONACEAE
Seedlings
SETARIA (GRAMINEA)
SETARIA (GRAMINEE)
SETARIA (GRASS)
SETARIA FABERI
Soil treatment
SORGHUM HALEPENSE
VERONICA
VERONICA PERSICA
WEED CONTROL
Weeds
XANTHIUM
XANTHIUM STRUMARIUM
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Summary:Barnyardgrass and many broadleaf weeds were severely stunted by POST applications of isoxaben. Most grasses were only moderately affected by isoxaben at rates up to 1 kg/ha. POST activity was enhanced by soil interception, but evident with foliar interception alone. Cell swelling in stems and in interveinal leaf lamina was observed after foliar application. A radiotracer study in redroot pigweed showed that only a small amount (3.3% of applied) of isoxaben entered the leaf following foliar application, and that little (0.08% of applied) isoxaben migrated beyond the point of application. The potential of isoxaben as a POST herbicide may be limited, in part, by poor absorption and translocation.
ISSN:0890-037X
1550-2740
DOI:10.1017/s0890037x00038628