Effect of DPX-V9360 and Terbufos on Field and Sweet Corn (Zea mays) Under Three Environments

Field studies were conducted in Michigan, Minnesota, and Wisconsin to explore interactions among DPX-V9360 herbicide applied postemergence, terbufos insecticide applied as an in-furrow treatment, and the environment. Field corn ('Pioneer 3751') and sweet corn ('Jubilee') were pla...

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Bibliographic Details
Published in:Weed technology 1991-03, Vol.5 (1), p.130-136
Main Authors: MORTON, C.A, HARVEY, R.G, KELLS, J.J, LUESCHEN, W.E, FRITZ, V.A
Format: Article
Language:English
Subjects:
Agricultural soils
Agronomy. Soil science and plant productions
Biological and medical sciences
Chemical control
Corn
Fundamental and applied biological sciences. Psychology
Herbicides
Insecticides
Organic soils
Parasitic plants. Weeds
Phytopathology. Animal pests. Plant and forest protection
Planting
Plants
Sand soils
Soil organic matter
Soil water
Weeds
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Summary:Field studies were conducted in Michigan, Minnesota, and Wisconsin to explore interactions among DPX-V9360 herbicide applied postemergence, terbufos insecticide applied as an in-furrow treatment, and the environment. Field corn ('Pioneer 3751') and sweet corn ('Jubilee') were planted with and without an in-furrow application of terbufos. DPX-V9360 was applied postemergence when the corn was in the 4- to 6-leaf stage at 0, 35, 70, 140, and 280 g ai ha-1with nonionic surfactant and 28% N fertilizer solution. Crop response to DPX-V9360 was similar at all three locations, varying only in magnitude of injury. Crop injury was greater with Jubilee sweet corn than with Pioneer 3751 field corn. Injury to both hybrids increased as DPX-V9360 application rate increased. Application of terbufos increased injury from DPX-V9360 to both hybrids. Significant yield reduction did not occur with either hybrid when DPX-V9360 was applied at rates of 140 g ha-1or less and no terbufos was applied.
ISSN:0890-037X
1550-2740
DOI:10.1017/S0890037X0003339X