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Effect of Diluent Volume and Calcium on Glyphosate Phytotoxicity

Published online by Cambridge University Press:  12 June 2017

C. L. Sandberg ,
W. F. Meggitt  and
Donald Penner
C. L. Sandberg
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
W. F. Meggitt
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
Donald Penner
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
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Abstract

The effects of diluent volume and calcium concentration on glyphosate [N-(phosphonomethyl] glycine] phytotoxicity were evaluated by adding 0.0, 0.0025, 0.005, 0.01, 0.02, and 0.04 M CaCl2 to 1.68 kg/ha glyphosate and applying at 130, 190, 375, and 750 L/ha to tall morningglory [Ipomoea purpurea (L.) Roth] plants that were 10 to 12 cm tall. Thirty days after treatment, glyphosate phytotoxicity was reduced by calcium at diluent volumes of 375 and 750 L/ha. Addition of a sulfonine red dye to the spray solution showed that at 130 L/ha, runoff from tall morningglory leaves was negligible. At 375 and 750 L/ha different volumes, ½ to ¾ of the spray solution, as measured by dye retention, ran off the leaf surface. At 750 L/ha, the water and dye collected at the leaf margins and the spray pattern on the leaf surface was not uniform.

Keywords

Tall morninggloryIpomoea purpureaspray composition
Type
Research Article
Information
Weed Science , Volume 26 , Issue 5 , September 1978 , pp. 476 - 479
Copyright
Copyright © 1978 by the Weed Science Society of America 

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References

Literature Cited

1. Baird, D. D., Upchurch, R. P., Homesley, W. B., and Franz, J. E. 1971. Introduction of a new broad spectrum postemergence herbicide class with utility for herbaceous perennial weed control. Proc. North Cent. Weed Control Conf. 26:64–68.Google Scholar
2. Blair, A. M. 1975. The addition of ammonium salts or phosphate ester to herbicides to control Agropyron repens (L.). Beauv. Weed Res. 15:101–105.Google Scholar
3. Hanson, C. L. and Rieck, C. E. 1976. The effect of iron and aluminum on glyphosate toxicity. Proc. South. Weed Sci. Soc. 29:49.Google Scholar
4. Peters, R. A., Dest, W. M., and Triolo, A. C. 1974. Preliminary report on the effects of mixing liquid fertilizers and residual herbicides with paraquat and glyphosate. Proc. Northeast. Weed Sci. Soc. 28:35–40.Google Scholar
5. Phillips, W. M. 1975. Glyphosate phytotoxicity as affected by carrier quality and application volume. Proc. North Cent. Weed Control Conf. 30:115.Google Scholar
6. Riemer, D. M. 1973. Effects of rate, spray volume, and surfactant on the control of phragmites with glyphosate. Proc. Northeast. Weed Sci. Soc. 27:101–104.Google Scholar
7. Sandberg, C. L., Meggitt, W. F., and Penner, D. 1976. Influence of spray volume and calcium of glyphosate phytotoxicity. Proc. North Cent. Weed Control Conf. 31:31.Google Scholar
8. Selleck, G. W. 1975. Antagonistic effects with glyphosate herbicide plus residual herbicide combinations. Proc. Northeast. Weed Sci. Soc. 29:327.Google Scholar
9. Sprankle, P., Meggitt, W. F., and Penner, D. 1972. Absorption, action, and translocation of glyphosate. Weed Sci. 23:235–240.CrossRefGoogle Scholar
10. Suwunnamek, U. and Parker, C. 1975. Control of Cyperus rotundus with glyphosate: the influence of ammonium sulphate and other additives. Weed Res. 15:13–19.Google Scholar
11. Turner, D. J. and Loader, M. P. C. Further studies with additives: effects of phosphate esters and ammonium salts on the activity of leaf-applied herbicides. Pestic. Sci. 6:1–10.Google Scholar
12. U. S. Department of Interior. 1966–1970. Quality of Surface Waters of the United States. Paper Nos. 2144, 1–367; 2146, 1–540; 2109, 1–633; 2157, 1–532; 2149, 1–349.Google Scholar
13. Wills, G. D. 1973. Effects of inorganic salts on the toxicity of glyphosate to purple nutsedge. Abstr. Weed Sci. Soc. Am. p. 59.Google Scholar
14. Wills, G. D. 1973. Toxicity of glyphosate to purple nutsedge as affected by surfactant K2CO3 and diluent volume. Proc. South. Weed Sci. Soc. 26:408–412.Google Scholar