Weed Response to Mesotrione and Atrazine Applied Alone and in Combination Preemergence

Greenhouse studies were conducted to determine the response of velvetleaf, common cocklebur, and ivyleaf morningglory to mesotrione and atrazine applied PRE, and to characterize the nature of any interaction between mesotrione and atrazine. Sensitivity to mesotrione was as follows: velvetleaf > c...

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Bibliographic Details
Published in:Weed technology 2006-10, Vol.20 (4), p.903-907
Main Authors: Bollman, S.L, Kells, J.J, Penner, D
Format: Article
Language:English
Subjects:
Abutilon theophrasti
additive interaction
application rate
atrazine
Biological and medical sciences
Broadleaf weeds
Chemical control
Corn
Crop production
Dose response relationship
Fundamental and applied biological sciences. Psychology
Growth retardation
herbicide-resistant weeds
Herbicides
Ipomoea hederacea
mesotrione
Parasitic plants. Weeds
pesticide application
pesticide mixtures
Phytopathology. Animal pests. Plant and forest protection
Plants
preemergent weed control
Synergism
Waxes
Weed control
Weeds
Xanthium strumarium
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Summary:Greenhouse studies were conducted to determine the response of velvetleaf, common cocklebur, and ivyleaf morningglory to mesotrione and atrazine applied PRE, and to characterize the nature of any interaction between mesotrione and atrazine. Sensitivity to mesotrione was as follows: velvetleaf > common cocklebur > ivyleaf morningglory. Sensitivity to atrazine was as follows: ivyleaf morningglory > common cocklebur > velvetleaf. Combinations of mesotrione and atrazine resulted in at least an additive interaction. The activity of mesotrione and atrazine applied in combination was generally additive for control of velvetleaf and ivyleaf morningglory but was synergistic for several rate combinations.
ISSN:0890-037X
1550-2740
DOI:10.1614/WT-04-304.1