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Organosilicone Adjuvant Effects on Glyphosate Efficacy and Rainfastness

Published online by Cambridge University Press:  12 June 2017

Krishna N. Reddy  and
Megh Singh
Krishna N. Reddy
Affiliation:
Citrus Res. and Educ. Center, Univ. Fla., IFAS, 700 Experiment Station Road, Lake Alfred, FL 33850
Megh Singh
Affiliation:
Citrus Res. and Educ. Center, Univ. Fla., IFAS, 700 Experiment Station Road, Lake Alfred, FL 33850
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Abstract

Greenhouse studies were conducted to evaluate the effectiveness of Kinetic, a silicone adjuvant that appeared to increase the efficacy and rainfastness of the isopropylamine salt of glyphosate on velvetleaf, sicklepod, barnyardgrass, guineagrass, yellow foxtail, and yellow nutsedge. Simulated rainfall of 1.3 cm in 5 min at 15 and 60 min after herbicide treatment reduced glyphosate efficacy on all weeds. Kinetic enhanced glyphosate efficacy when yellow nutsedge and guineagrass were subjected to post-spray rainfall at 60 min. On velvetleaf, sicklepod, and yellow foxtail, Kinetic improved glyphosate efficacy when the critical rain-free period was reduced to 15 min. Kinetic failed to provide rainfastness for barnyardgrass, thereby indicating a specificity of Kinetic for certain weed species.

Keywords

Glyphosate, N-(phosphonomethyl)glycinebarnyardgrass, Echinochloa crus-galli (L.) Beauv. ♯ ECHCGguineagrass, Panicum maximum Jacq. ♯ PANMAsicklepod, Cassia obtusifolia L. ♯ CASOBvelvetleaf, Abutilon theophrasti Medik. ♯ ABUTHyellow foxtail, Setaria glauca (L.) Beauv. ♯ SETLUyellow nutsedge, Cyperus esculentus L. ♯ CYPESRainfallsurface tensionsurfactantABUTHCASOBCYPESECHCGPANMASETLU
Type
Research
Information
Weed Technology , Volume 6 , Issue 2 , June 1992 , pp. 361 - 365
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Bovey, R. W., Meyer, R. E., and Whisenant, S. G. 1990. Effect of simulated rainfall on herbicide performance in huisache (Acacia farnesiana) and honey mesquite (Prosopis glandulosa). Weed Technol. 4:26–30.Google Scholar
2. Bryson, C. T. 1987. Effects of rainfall on foliar herbicides applied to rhizome johnsongrass. Weed Sci. 35:115–119.CrossRefGoogle Scholar
3. Bryson, C. T. 1988. Effects of rainfall on foliar herbicides applied to seedling johnsongrass (Sorghum halepense). Weed Technol. 2:153–158.CrossRefGoogle Scholar
4. Caseley, J. C. and Coupland, B. 1985. Environmental and plant factors affecting glyphosate uptake, movement and activity, p. 92–123 in Grossbard, E. and Atkinson, D., eds. The Herbicide Glyphosate. Butterworths, London.Google Scholar
5. Field, R. J. and Bishop, N. C. 1988. Promotion of stomatal infiltration of glyphosate by an organosilicone surfactant reduces the critical rainfall period. Pestic. Sci. 24:55–62.Google Scholar
6. Kinetic. Spray adjuvant Technical data sheet Not dated. Helena Chemical Company, Memphis, TN 38119. 1 p.Google Scholar
7. Mayasich, J. M., Mayasich, S. A., and Rebeiz, C. A. 1990. Response of corn (Zea mays), soybean (Glycine max), and several weed species to dark-applied photodynamic herbicide modulators. Weed Sci. 38:10–15.Google Scholar
8. Penner, D. 1989. The impact of adjuvants on herbicide antagonism. Weed Technol. 3:227–231.Google Scholar
9. Rebeiz, C. A., Montazer-Zouhoor, A., Hopen, H. J., and Wu, S. M. 1984. Photodynamic herbicides: 1. Concept and phenomenology. Enzyme Microb. Technol. 6:390–401.Google Scholar
10. Roggenbuck, F. C., Rowe, L., Penner, D., Burow, R. F., Ekeland, R. A., and Petroff, L. J. 1989. Use of silicone adjuvants to increase activity and rainfastness of acifluorofen. Proc. Brighton Crop Prot. Conf.-Weeds 1:219–224.Google Scholar
11. Roggenbuck, F. C., Rowe, L., Penner, D., Petroff, L., and Burow, R. 1990. Increasing postemergence herbicide efficacy and rainfastness with silicone adjuvants. Weed Technol. 4:576–580.Google Scholar
12. Thonke, K. E., Kudsk, P., and Streibig, J. C. 1989. The effect of adjuvants on the rainfastness of glyphosate applied on quackgrass (Elymus repens). p. 103–110 in Chow, P.N.P. Grant, C. A., Hinshalwood, A. M., and Simundson, E., eds. Adjuvants and Agrochemicals. Vol. II. Recent Development, Application, and Bibliography of Agroadjuvants. CRC Press, Inc., Boca Raton, FL.Google Scholar
13. Wells, A. J. 1989. Adjuvants, glyphosate efficacy and post-spraying rainfall. Plant, Prot. Q. 4:158–164.Google Scholar
14. Zabkiewicz, J. A. and Gaskin, R. E. 1989. Effect of adjuvants on uptake and translocation of glyphosate in gorse (Ulex europaeus L.). p. 141–149 in Chow, P.N.P., Grant, C. A., Hinshalwood, A. M., and Simundsson, E., eds. Adjuvants and Agrochemicals. Vol. I. Mode of Action and Physiological activity. CRC Press, Inc., Boca Raton, FL.Google Scholar