Enhancing Herbicide Selectivity with Water-Repellent Adjuvants

The objectives of this research were to determine if adjuvants with water-repellent properties could reduce herbicide retention on foliage, and thereby absorption, of the spray solution and to determine if herbicide activity was maintained with a reduction in herbicide retention. Water-repellent adj...

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Bibliographic Details
Published in:Weed technology 2006-07, Vol.20 (3), p.677-681
Main Authors: Nelson, E.A, Penner, D
Format: Article
Language:English
Subjects:
Agrology
Biological and medical sciences
Brassica oleracea var. capitata
cabbage
Cabbages
Chemical control
flumioxazin
foliar spraying
Fundamental and applied biological sciences. Psychology
Herbicides
isoxaflutole
Leaves
Parasitic plants. Weeds
pendimethalin
pesticide adjuvants
Phytopathology. Animal pests. Plant and forest protection
phytotoxicity
Plants
Soil solution
Soil treatment
Solanum lycopersicum var. lycopersicum
spray retention
Surfactants
tomatoes
Triticum aestivum
water repellent adjuvants
Weeds
Wheat
Wheat soils
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Summary:The objectives of this research were to determine if adjuvants with water-repellent properties could reduce herbicide retention on foliage, and thereby absorption, of the spray solution and to determine if herbicide activity was maintained with a reduction in herbicide retention. Water-repellent adjuvants, DC 2-1322, DC 1-6184, and DC 772, were evaluated with three herbicides, isoxaflutole, pendimethalin, and flumioxazin, and on three crop species, cabbage, tomato, and wheat. The water repellents DC 2-1322 and DC 772 were ineffective with these herbicides and these crop species. DC 1-6184 effectively reduced spray retention for all three herbicides evaluated, regardless of formulation, on all three species. The efficacy of DC 1-6184 was more evident if the spray application was restricted to the plant foliage. The water-repellent DC 1-6184 has potential to decrease injury while maintaining weed control with certain herbicides.
ISSN:0890-037X
1550-2740
DOI:10.1614/WT-05-101R1.1