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Reactions of Several Crops to Dichlobenil

  • W. S. Hardcastle (a1) and R. E. Wilkinson (a1)


Tolerance of corn (Zea mays L. ‘B’), cotton (Gossypium hirsutum L. ‘coker 413’), soybean (Glycine max Merr. ‘Hardee’), turnip (Brassica rapa L. ‘Tendergreen’), sorghum (Sorghum bicolor (L.) Moench. ‘Georgia 615’), purple nutsedge (Cyperus rotundus L.), yellow nutsedge (C. esculentus L.), and johnsongrass (Sorghum halepense (L.) Pers.) to 2,6-dichlorobenzonitrile (dichlobenil) at 0, 0.14, 0.28, 0.56, 1.12, and 2.24 kg/ha in four Georgia soils was determined. Equivalent rates of dichlobenil generally were more toxic in Davidson clay loam which had the highest clay content. Crop tolerance was corn > sorghum > cotton > turnip. Purple and yellow nutsedge tolerance to dichlobenil was intermediate to that of the crops tested. Johnsongrass response was equivalent to that shown by sorghum.



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1. Hardcastle, W. S., Wilkinson, R. E., and Thompson, J. T. 1968. Fallow application of dichlobenil for nutsedge control. Proc. S. Weed Conf. 21:313 (Abstr.)
2. Hardcastle, W. S. and Wilkinson, R. E. 1968. Response of purple and yellow nutsedge to dichlobenil. Weed Sci. 16:339340.
3. Hauser, G. W. 1962. Establishment of nutsedge from space-planted tubers. Weeds 10:209212.
4. Hill, E. R., Lachman, W. H., and Maynard, D. N. 1963. Reproductive potential of yellow nutsedge by seed. Weeds 11:160161.
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6. Tumbleson, M. E. and Kommedahl, T. 1961. Reproductive potential of Cyperus esculentus by tubers. Weeds 9:646653.

Reactions of Several Crops to Dichlobenil

  • W. S. Hardcastle (a1) and R. E. Wilkinson (a1)


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