Control of perennial weed species as seedlings with soil-applied herbicides

Herbicides from several chemical families were evaluated in the greenhouse for preemergence control of perennial weed species emerging from seeds. Weed species were bermudagrass, johnsongrass, Canada thistle, common milkweed, common pokeweed, hemp dogbane, and horsenettle. Atrazine, cloransulam, chl...

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Bibliographic Details
Published in:Weed technology 1999-04, Vol.13 (2), p.425-428
Main Author: Vangessel, M.J
Format: Article
Language:English
Subjects:
application timing
atrazine
Biological and medical sciences
biological resistance
Chemical control
chlorimuron
clomazone
cloransulam
establishment
evaluation
Fundamental and applied biological sciences. Psychology
Glycine max
Hemp
herbicide mixtures
herbicide resistance
Herbicides
imazaquin
linuron
metolachlor
metribuzin
Parasitic plants. Weeds
pendimethalin
Perennial weeds
perennials
Phytopathology. Animal pests. Plant and forest protection
Sandy loam soils
Seedlings
Seeds
Soil water
Solanum carolinense
Soybeans
species differences
sulfentrazone
Weed control
Weeds
Zea mays
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Summary:Herbicides from several chemical families were evaluated in the greenhouse for preemergence control of perennial weed species emerging from seeds. Weed species were bermudagrass, johnsongrass, Canada thistle, common milkweed, common pokeweed, hemp dogbane, and horsenettle. Atrazine, cloransulam, chlorimuron, clomazone, flumetsulam, imazaquin, linuron, metolachlor, metribuzin, pendimethalin, and sulfentrazone were used representing common preemergence herbicide families used in the mid-Atlantic region for corn and soybean in a sandy loam soil. Hemp dogbane and common pokeweed were controlled (greater than 85%) by eight of the 11 herbicides in this study, indicating they may be the two most susceptible species in the trial. Metolachlor and pendimethalin provided control of only bermudagrass, and linuron controlled only Canada thistle. Cloransulam controlled all species except bermudagrass. Clomazone provided greater than 80% control of all species except horsenettle. Metribuzin alone or in combination with chlorimuron provided the broadest spectrum and highest level of control. Metribuzin provided greater than 85% control of all species except johnsongrass. Soil-applied herbicides can limit the establishment of perennial species from seeds.
ISSN:0890-037X
1550-2740
DOI:10.1017/S0890037X0004197X