Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T17:09:56.593Z Has data issue: false hasContentIssue false
  • English
  • Français

Adjuvant and Herbicide Concentration in Spray Droplets Influence Phytotoxicity

Published online by Cambridge University Press:  20 January 2017

Bradford K. Ramsdale  and
Calvin G. Messersmith
Bradford K. Ramsdale*
Affiliation:
Department of Plant Sciences, North Dakota State University, Fargo, ND 58105
Calvin G. Messersmith
Affiliation:
Department of Plant Sciences, North Dakota State University, Fargo, ND 58105
*
Corresponding author's E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Experiments were conducted in the greenhouse to determine the effects of adjuvant and herbicide concentrations on imazamox, imazethapyr, nicosulfuron, and ICIA 0604 phytotoxicity, independent of spray retention. Equal amounts of herbicide were applied to oat in a single 0.5-μl drop or four 0.5-μl drops. Changes in adjuvant concentration influenced herbicide phytotoxicity more with application in one concentrated drop rather than in four dilute drops. Overall, herbicide phytotoxicity was greater when low adjuvant concentrations were applied in four dilute drops compared with a single concentrated drop. But when the same total amount of adjuvant was applied in one or four drops, herbicide phytotoxicity in a single drop was generally equal to or greater than in four drops. These results suggest that high herbicide phytotoxicity with high herbicide and adjuvant concentrations in low spray volumes in the field was primarily because of increased herbicide absorption rather than spray retention.

Keywords

ICIA 0604 (proposed common name, tralkoxydim), 2-[1-(ethoxyimino)propyl]-3-hydroxy-5-(2,4,6-trimethylphenyl)cyclohex-2-enoneimazamoximazethapyrnicosulfuronoat, Avena sativa L.Absorption, spray coverage, spray volumeMVO, methylated vegetable oilNIS, nonionic surfactant
Type
Research
Information
Weed Technology , Volume 16 , Issue 3 , September 2002 , pp. 631 - 637
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Ambach, R. M. and Ashford, R. 1982. Effects of variations in drop makeup on the phytotoxicity of glyphosate. Weed Sci. 30: 221–224.CrossRefGoogle Scholar
Bruns, D. E. and Nalewaja, J. D. 1998. Spray retention is affected by spray parameters, species, and adjuvants. In Nalewaja, J. D., Goss, G. R., and Tann, R. S., eds. Pesticide Formulations and Application Systems. Philadelphia: American Society for Testing and Materials. pp. 107–119.Google Scholar
Buhler, D. D. and Burnside, O. C. 1984. Effect of application factors on postemergence phytotoxicity of fluazifop-butyl, haloxyfop-methyl, and sethoxydim. Weed Sci. 32: 574–583.CrossRefGoogle Scholar
Cranmer, J. R. and Linscott, D. L. 1990. Droplet makeup and the effect on phytotoxicity of glyphosate in velvetleaf (Abutilon theophrasti). Weed Sci. 38: 406–410.CrossRefGoogle Scholar
Cranmer, J. R. and Linscott, D. L. 1991. Effects of droplet composition on glyphosate absorption and translocation in velvetleaf (Abutilon theophrasti). Weed Sci. 39: 251–254.CrossRefGoogle Scholar
de Ruiter, H., Uffing, A. J. M., Meinen, E., and Prins, A. 1990. Influence of surfactants and plant species on leaf retention of spray solutions. Weed Sci. 38: 567–572.CrossRefGoogle Scholar
Feng, P. C. C., Ryerse, J. S., and Sammons, R. D. 1998. Correlation of leaf damage with uptake and translocation of glyphosate in velvetleaf (Abutilon theophrasti). Weed Technol. 12: 300–307.CrossRefGoogle Scholar
Green, J. M. 1996. Interaction of surfactant dose and spray volume on rimsulfuron activity. Weed Technol. 10: 508–511.CrossRefGoogle Scholar
Hess, F. D. and Falk, R. H. 1990. Herbicide deposition on leaf surfaces. Weed Sci. 38: 280–288.CrossRefGoogle Scholar
Hess, F. D. and Foy, C. L. 2000. Interaction of surfactants with plant cuticles. Weed Technol. 14: 807–813.CrossRefGoogle Scholar
Humble, G. D. and Burga, C. A. 2001. New relationships between spray volume and silicone surfactant use rates in herbicide performance. In de Ruiter, H., ed. Adjuvants for Agrochemicals, Sixth Int. Symp., Amsterdam, The Netherlands. pp. 218–223.Google Scholar
Jordan, T. N. 1981. Effects of diluent volumes and surfactant on the phytotoxicity of glyphosate to bermudagrass (Cynodon dactylon). Weed Sci. 29: 79–83.CrossRefGoogle Scholar
Kirkwood, R. C. 1993. Use and mode of action of adjuvants for herbicides: a review of some current work. Pestic. Sci. 38: 93–102.CrossRefGoogle Scholar
Manthey, F. A. and Nalewaja, J. D. 1992. Relative wax solubility and phytotoxicity of oil to green foxtail [Setaria viridis (L.) Beauv]. In Foy, C. L., ed. Adjuvants for Agrichemicals. Boca Raton, FL: CRC Press. pp. 463–471.Google Scholar
Manthey, F. A., Szelezniak, E. F., and Nalewaja, J. D. 1995. Relationship between spray droplet spread and herbicide phytotoxicity. In Hopkinson, M. J., Collins, H. M., and Goss, G. R., eds. Pesticide Formulations and Application Systems. Philadelphia: American Society for Testing and Materials. pp. 182–191.Google Scholar
Manthey, F. A., Szelezniak, E. F., and Nalewaja, J. D. 1997. Lipophilic chemistry affects surfactant phytotoxicity and enhancement of herbicide efficacy. In Goss, G. R., Hopkinson, M. J., and Collins, H. M., eds. Pesticide Formulations and Application Systems. Philadelphia: American Society for Testing and Materials. pp. 267–276.CrossRefGoogle Scholar
McWhorter, C. G., Ouzts, C., and Hanks, J. E. 1993. Spread of water and oil droplets on johnsongrass (Sorghum halepense) leaves. Weed Sci. 41: 460–467.CrossRefGoogle Scholar
Nalewaja, J. D. and Ahrens, W. H. 1998. Adjuvants and spray volume affect herbicide efficacy. In McMullan, P. M., ed. Adjuvants for Agrochemicals, Fifth Int. Symp., Memphis, TN. pp. 434–441.Google Scholar
Nalewaja, J. D. and Matysiak, R. 2000. Spray deposits from nicosulfuron with salts that affect efficacy. Weed Technol. 14: 740–749.CrossRefGoogle Scholar
Nalewaja, J. D. and Matysiak, R. 2001. Nicosulfuron response to adjuvants, salts, and spray volume. In de Ruiter, H., ed. Adjuvants for Agrochemicals, Sixth Int. Symp., Amsterdam, The Netherlands. pp. 304–314.Google Scholar
Ramsdale, B. K. and Nalewaja, J. D. 2001. Adjuvants influence herbicide efficacy at low spray volumes. In de Ruiter, H., ed. Adjuvants for Agrochemicals, Sixth Int. Symp., Amsterdam, The Netherlands. pp. 224–229.Google Scholar
Stock, D. and Holloway, P. J. 1993. Possible mechanism for surfactant-induced foliar uptake of agrichemicals. Pestic. Sci. 38: 165–177.CrossRefGoogle Scholar