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Herbicide Effectiveness, Soil Residues, and Phytotoxicity to Peach Trees

  • W. A. Skroch (a1), T. J. Sheets (a2) and J. W. Smith (a3)


Dichlobenil (2,6-dichlorobenzonitrile), 3-tert-butyl-5-chloro-6-methyluracil (terbacil), and 3-tert-butyl-5-bromo-6-methyluracil (hereinafter referred to as DP-733) were applied annually for 3 years as soil surface or incorporated treatments for weed control in young peach (Prunus persica (L.) Batsch., var. Redhaven) trees. Average monthly ratings showed significant increases in bermudagrass (Cynodon dactylon (L.) Pers.) control with incorporation of all three herbicides. Treetrunk diameters in incorporated dichlobenil plots were greater than those in surface-applied dichlobenil plots. Incorporation in the soil reduced loss of dichlobenil, terbacil, and DP-733. The herbicides did not accumulate in the 0 to 15-cm soil layer. Low concentrations were detected in the 30 to 60-cm soil depth 1 year after the third annual application of 6.72 kg/ha of dichlobenil and 4.48 kg/ha of DP-733. Terbacil was not present in detectable amounts at 30 to 60 cm but was present in the 15 to 30-cm layer of 4.48 kg/ha plots.



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1. Barnsley, G. E. and Rosher, P. H. 1961. The relationship between the herbicidal effect of 2,6-dichlorobenzonitrile and its persistence in the soil. Weed Res. 1:147158.
2. Fisher, V. J. 1964. Weed control around young peach and apple trees with substituted uracils. Proc. No. East. Weed Contr. Conf. 18:188192.
3. Fisher, V. J. 1965. The effect of weed control by isocil and bromacil on growth of young peach and apple trees. Proc. Amer. Soc. Hort. Sci. 86:148151.
4. Gutenmann, W. H. and Lisk, D. J. 1968. Estimation of residues of uracil herbicides by gas chromatography after evaporative co-distillation. J. Assoc. Offic. Anal. Chem. 51:688690.
5. Meulemans, K. J. and Upton, E. T. 1966. Determination of dichlobenil and its metabolite, 2,6-dichlorobenzoic acid, in agricultural crops, fish, soil, and water. J. Assoc. Offic. Anal. Chem. 49:976981.
6. Miller, C. W., Demoranville, I. E., and Charig, A. J. 1966. Persistence of dichlobenil in cranberry bogs. Weeds 14:296298.
7. Pease, H. L. 1968. Determination of terbacil residues using microcoulometric gas chromatography. J. Agr. Food Chem. 16:5456.
8. Price, H. C. and Fisher, V. J. 1966. Comparison of several substituted uracil herbicides for control of weeds around young peach and apple trees. Proc. No. East. Weed Contr. Conf. 20:174180.
9. Sheets, T. J., Harris, C. I., and Smith, J. W. 1968. Persistence of dichlobenil and SD-7961 in soil. Weed Sci. 16:245249.
10. Skroch, W. A. 1970. Effects of five herbicides on apple and peach seedlings. Hort. Sci. 5:4244.
11. Skroch, W. A. 1966. Weed control in bearing and non-bearing peaches. Proc. So. Weed Conf. 19:241242.
12. Welker, W. V. Jr. 1965. Herbicide evaluation on apples and peaches. Proc. No. East. Weed Contr. Conf. 19:129130.
13. Zimdahl, R. L., Freed, V. H., Montgomery, M. L., and Furtick, W. R. 1970. The degradation of triazine and uracil herbicides in soil. Weed Res. 10:1826.

Herbicide Effectiveness, Soil Residues, and Phytotoxicity to Peach Trees

  • W. A. Skroch (a1), T. J. Sheets (a2) and J. W. Smith (a3)


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