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Spread of Paraffinic Oil on Leaf Surfaces of Johnsongrass (Sorghum halepense)

Published online by Cambridge University Press:  12 June 2017

Chester G. McWhorter  and
William L. Barrentine
Chester G. McWhorter
Affiliation:
South. Weed Sci. Lab., U.S. Dep. Agric., Agric. Res. Service
William L. Barrentine
Affiliation:
Delta Branch Mississippi Agric. and For. Exp. Stn., Stoneville, MS 38776
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Abstract

Paraffinic oil applied at 2.3, 4.7, and 9.3 L/ha to the surface of johnsongrass [Sorghum halepense (L.) Pers. # SORHA] leaves spread to provide complete coverage of the leaf surface. Soybean oil applied at the same volumes provided only 30 to 50% coverage of leaf surfaces. Water at 187 L/ha that contained 1.25% paraffinic oil adjuvant provided only about 30% coverage because spray droplets did not spread appreciably. Spread coefficients obtained when five different oil-soluble herbicides were applied to leaf surfaces in paraffinic oil were more than 100 times greater than when applied in water alone. Higher spread coefficients were obtained when paraffinic oil contained herbicides than when paraffinic oil was applied alone. Spread coefficients were also much greater for paraffinic oil alone than for soybean oil with or without herbicides. Stomata on johnsongrass leaves were distorted by paraffinic oil, suggesting that leaf surface wax was dissolved and this might be a mode of entry of herbicide into johnsongrass when applied in paraffinic oil. Stomata were unaffected by soybean oil or by water sprays that contained 1.25% soybean oil adjuvant or paraffinic oil adjuvant.

Keywords

Haloxyfopquizalofopcloproxydimfluazifopsethoxydimsoybean oilsoybean oil concentrateparaffinic oil concentrateadjuvantsspray volumeSORHA
Type
Special Topics
Information
Weed Science , Volume 36 , Issue 1 , January 1988 , pp. 111 - 117
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

Literature Cited

1. Abernathy, J. and Santelmann, P. W. 1969. Use of nonphytotoxic additives to enhance herbicide activity. Proc. South. Weed Conf. 22:350–358.Google Scholar
2. Atkin, D. S. H. and Hamilton, R. J. 1982. Surface of Sorghum bicolor . Pages 231–236 in Cutler, D. F., Alvin, K. L., and Price, C. E., eds. The Plant Cuticle. Academic Press, London.Google Scholar
3. Baker, J. M. 1970. Effects of oils on plants. Environ. Pollut. 1:27–44.Google Scholar
4. Baker, E. A., Hunt, G. M., and Stevens, P.J.G. 1983. Studies of plant cuticle and spray droplet interactions: a fresh approach. Pestic. Sci. 14:645–658.Google Scholar
5. Barrentine, W. L. and McWhorter, C. G. 1988. Johnsongrass (Sorghum halepense) control with herbicides in oil diluents. Weed Sci. 36:102–110.Google Scholar
6. Behrens, R. and Miller, G. R. 1970. Performance of postemergence atrazine-dalapon-oil mixtures on corn. Down Earth 26: 1–4.Google Scholar
7. Bode, L. E., Butler, B. J., and Wax, L. M. 1985. Use of electrostatics, rotary atomizers, and vegetable oil in low-volume ground application. Pages 78–87 in Kaneko, T. M. and Spicer, L. D., eds. Pesticide Formulations and Application Systems. 4th Symp. ASTM Pub. Code No. (PCN) 04-875000-48, Philadelphia, PA.Google Scholar
8. 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
9. Brunskill, R. T. 1956. Factors affecting the retention of spray droplets on leaves. Proc. 3rd Br. Weed Control Conf. 2:593–603.Google Scholar
10. Burnside, O. C. 1966. Postemergence weed control in corn. North Cent. Weed Control Conf. Ann. Res. Rep. 23:7.Google Scholar
11. Chapman, P. J. 1967. Petroleum oils for the control of orchard pests. N. Y. State Agric. Exp. Bull. 814. 22 pp.Google Scholar
12. Colby, R. S. 1965. Greenhouse evaluation of herbicide combinations. Proc. Northeast. Weed Control Conf. 19:312–315.Google Scholar
13. Coutts, H. H. and Furmidge, C.G. L. 1971. ULV Spraying. Span 14:143–145.Google Scholar
14. Currey, W. L. and Cole, R. H. 1966. Comparison of atrazine, atrazine-surfactant and atrazine-oil mixtures. Proc. Northeast. Weed Control Conf. 20:297–300.Google Scholar
15. Dexter, A. G., Burnside, O. C., and Lavy, T. L. 1966. Factors influencing the phytotoxicity of foliar applications of atrazine. Weeds 14:222–228.Google Scholar
16. Duke, W. B. 1968. Atrazine versus atrazine plus oil. Proc. Northeast. Weed Control Conf. 22:286–292.Google Scholar
17. Elliott, J. G. and Wilson, B. J. 1983. The influence of weather on the efficiency and safety of pesticide application – the drift of herbicides. Br. Crop Prot. Counc., Lavenham Press, Ltd., Lavenham, Great Britain. 135 pp.Google Scholar
18. Frost, A. R. and Yates, W. E. 1981. A pulsed-jet atomizer for the production of sprays with narrow drop size ranges. Agric. Eng. Res. 26:357–366.Google Scholar
19. Gudin, C., Syratt, W. J., and Boize, L. 1976. The mechanisms of photosynthetic inhibition and the development of scorch in tomato plants treated with spray oils. Ann. Appl. Biol. 84: 213–219.CrossRefGoogle Scholar
20. Hadaway, A. B. and Barlow, F. 1965. Studies on the deposition of oil drops. Ann. Appl. Biol. 55:267–274.Google Scholar
21. Himel, C. M. and Moore, A. D. 1969. Spray droplet size in the control of spruce budworm, boll weevil, bollworm, and cabbage looper. J. Econ. Entomol. 62:916–981.Google Scholar
22. Holstun, J. T. Jr. and Bingham, S. W. 1960. Several triazines as selective post-emergence herbicides in cotton. Weeds 8:187–197.Google Scholar
23. Low, S. E. 1978. Embedded-electrode electrostatic-induction spray- charging nozzles: theoretical and engineering design. Trans. Am. Soc. Agric. Eng. 21:1096–1104.Google Scholar
24. Liu, L. C., Ilnicki, R. D., Regan, J. B., and Visinski, E. J. 1966. Napthenic and paraffinic oils as adjuvants in atrazine and linuron sprays for weed control in corn. Proc. Northeast. Weed Control Conf. 20:309–316.Google Scholar
25. McWhorter, C. G. and Schweizer, E. E. 1964. The use of surfactants. to increase herbicidal activity. Proc. Northeast Weed Control Conf. 18:6–13.Google Scholar
26. McWhorter, C. G., Fulgham, F. E., and Barrentine, W. L. 1988. An air-assist spray nozzle for applying herbicides in ultralow volume. Weed Sci. 36:118–121.Google Scholar
27. Miller, G. 1967. Performance of atrazine-oil in Minnesota. Proc. North Cent. Weed Control Conf. 24:57–58.Google Scholar
28. Van Overbeek, J. and Blondeau, R. 1954. Mode of action of phytotoxic oils. Weeds 3:55–65.Google Scholar
29. Wenzel, R. N. 1936. Resistance of solid surfaces to wetting by water. Ind. Eng. Chem. (Ind. Edn.) 28:988–994.Google Scholar
30. Wilson, H. P. and Ilnicki, R. D. 1968. Combinations of oils and surfactants for enhancing the postemergence activity of atrazine in corn. Proc. Northeast. Weed Control Conf. 22:110–114.Google Scholar