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Postemergence Grass Control with Herbicides Applied at ULV in Paraffinic Oil

Published online by Cambridge University Press:  12 June 2017

Chester G. McWhorter ,
William L. Barrentine  and
James E. Hanks
Chester G. McWhorter
Affiliation:
U.S. Dep. Agric., Plant Physiol., Delta Res. and Ext. Cent., Miss. Agric. and For. Exp. Stn., and Agric. Eng., Applic. Tech. Res. Unit., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
William L. Barrentine
Affiliation:
U.S. Dep. Agric., Plant Physiol., Delta Res. and Ext. Cent., Miss. Agric. and For. Exp. Stn., and Agric. Eng., Applic. Tech. Res. Unit., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
James E. Hanks
Affiliation:
U.S. Dep. Agric., Plant Physiol., Delta Res. and Ext. Cent., Miss. Agric. and For. Exp. Stn., and Agric. Eng., Applic. Tech. Res. Unit., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
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Abstract

Variables affecting ultra-low-volume (ULV) application of herbicides for postemergence grass control in soybeans were evaluated in field experiments from 1988 to 1990. Air-assist applications of clethodim at 2.3 and 4.7 L ha–1 were compared with 94 and 187 L ha–1 applications with a conventional hydraulic sprayer. Rate of herbicide, volume of diluent, type of diluent, air pressure, and four other herbicides were evaluated. Clethodim at 28, 56, and 112 g ha–1 applied in paraffinic oil at 2.3 L ha–1 controlled johnsongrass better 10 wk after treatment than equivalent rates applied at 2.3 or 187 L ha–1 in water. At 2.3 L ha–1, barnyardgrass control was improved by applying clethodim in paraffinic oil rather than water. Johnsongrass control 10 wk after treatment was better with clethodim at 28 g ha–1 applied in paraffinic oil than when applied in soybean oil, cottonseed oil, No. 2 diesel fuel, kerosene, or jet A fuel. Low air pressures of 14 or 28 kPa resulted in better control of johnsongrass and barnyardgrass than higher pressures of 56 and 112 kPa. Clethodim, fluazifop-P, haloxyfop, quizalofop, or sethoxydim were more effective on johnsongrass and barnyardgrass when applied in paraffinic oil than in water at 2.3 and 4.7 L ha–1 with an air-assist sprayer.

Keywords

Clethodim, (E,E)-(±)-2-[1-[[(3-chloro-2-propenyl)oxy]imino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onefluazifop-P, (R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidhaloxyfop, 2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidquizalofop, (±)-2-[4-[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-onebarnyardgrass, Echinochloa crus-galli (L.) Beauv. ♯ ECHCGjohnsongrass, Sorghum halepense (L.) Pers. ♯ SORHAGlycine max (L.) Merr. ‘Forrest’Clethodimfluazifop-PhaloxyfopquizalofopsethoxydimSORHAECHCG
Type
Research
Information
Weed Technology , Volume 6 , Issue 2 , June 1992 , pp. 262 - 268
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Barrentine, W. L. 1984. Alternate herbicide carriers—a progress report on oil and oil concentrates. Crops Soils 36:13–15.Google Scholar
2. Barrentine, W. L., Hurst, H. R., and Dale, J. E. 1983. Soybean vs. petroleum oil adjuvants in soybean weed control. J. Am. Oil Chem. Soc. 60:744.Google Scholar
3. Barrentine, W. L., and McWhorter, C. G. 1988. Johnsongrass (Sorghum halepense) control with herbicides in oil diluents. Weed Sci. 36:102–110.Google Scholar
4. Boize, L., Gudin, C., and Purdue, G. 1976. The influence of leaf surface roughness on the spreading of oil spray drops. Ann. Appl. Biol. 84:205–211.Google Scholar
5. Brunskill, R. T. 1956. Factors affecting the retention of spray droplets on leaves. Proc. 3rd Br. Weed Control Conf. 2:593–603.Google Scholar
6. 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.Google Scholar
7. Chandrasena, W. R., and Sagar, G. R. 1989. Fluazifop toxicity to quackgrass (Agropyron repens) as influenced by some application factors and site of application. Weed Sci. 37:790–796.Google Scholar
8. Chernicky, J. P., Gossett, B. J., and Quisenberry, V. L. 1981. Factors influencing the response of annual grasses to BAS-9052 and RO-13–8895. Proc. South. Weed Sci. Soc. 34:97.Google Scholar
9. Hanks, J. E., and McWhorter, C. G. 1991. Variables affecting the use of positive displacement pumps to apply herbicide in ultralow volume. Weed Technol. 5:111–116.Google Scholar
10. Hartzler, R. G., and Foy, C. L. 1983. Efficacy of three postemergence grass herbicides for soybeans. Weed Sci. 31:557–561.Google Scholar
11. Keels, J. J., and Wanamarta, G. 1987. Effect of adjuvant and spray volume on quackgrass (Agropyron repens) control with selective postemergence herbicides. Weed Technol. 1:129–132.Google Scholar
12. McWhorter, C. G., and Barrentine, W. L. 1988. Spread of paraffinic oil on leaf surfaces of johnsongrass (Sorghum halepense). Weed Sci. 36: 111–117.Google Scholar
13. Neal, J. C., Bhowmik, P. C., and Senesac, A. F. 1990. Factors influencing fenoxaprop efficacy in cool-season turfgrass. Weed Technol. 4: 272–278.CrossRefGoogle Scholar
14. Smeda, R. J., and Putnam, A. R. 1989. Effect of adjuvant concentrations and carrier volume on large crabgrass (Digitaria sanguinalis) control with fluazifop. Weed Technol. 3:105–109.Google Scholar
15. Steel, R.G.D., and Torrie, J. H. 1980. Principles and Procedures of Statistics—A Biomedical Approach. 2nd ed. McGraw-Hill Book Co., New York. 633 p.Google Scholar
16. Wenzel, R. N. 1936. Resistance of solid surfaces to wetting by water. Ind. Eng. Chem. (Ind. Edy.) 28:988–994.CrossRefGoogle Scholar