Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-26T13:23:28.112Z Has data issue: false hasContentIssue false
  • English
  • Français

Picloram Absorption by Broom Snakeweed (Gutierrezia sarothrae) Leaf Tissue

Published online by Cambridge University Press:  12 June 2017

Tracy M. Sterling  and
Norman K. Lownds
Tracy M. Sterling
Affiliation:
Dep. Entomol., Plant Pathol., and Weed Sci., New Mexico State Univ., Las Cruces, NM 88003
Norman K. Lownds
Affiliation:
Dep. Agron. and Hortic., New Mexico State Univ., Las Cruces, NM 88003
Get access Rights & Permissions [Opens in a new window]

Abstract

Foliar absorption of picloram by broom snakeweed, a rangeland shrub, was investigated. Picloram uptake into leaf, axillary bud, and stem tissues was similar. In addition, picloram uptake by leaf tissue from greenhouse- and field-grown broom snakeweed did not differ. Picloram accumulated rapidly and absorption saturated between 15 min and 1 h of application; no further absorption occurred through 72 h with maximum uptake ca. 15% of applied picloram. Picloram content increased linearly with increasing external picloram concentration, implying that movement of the herbicide across the cuticle is via diffusion. Absorption was dependent on relative humidity and temperature with the greatest uptake at 94% relative humidity and 35 C, respectively. Absorption was pH dependent; picloram absorption was greatest at pH 4 and least at pH 8. In addition, picloram absorption was less at pH 3 compared to pH 4. These results provide evidence that picloram is absorbed across the cuticle via simple diffusion and absorption is dependent on environmental conditions and solution pH at and following application.

Keywords

Picloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acidsodium barbital, sodium 5,5-diethyl-2,4,6-(1H,3H,5H)-pyrimidinetrionebroom snakeweed, Gutierrezia sarothrae (Pursh) Britt & Rusby # GUESAEnvironmentrangeland weed controlpHherbicide absorptionherbicide uptake
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 40 , Issue 3 , September 1992 , pp. 390 - 394
Copyright
Copyright © 1992 by the 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

1. Briggs, G. G., Rigitano, R.L.O., and Bromilow, R. H. 1987. Physicochemical factors affecting uptake by roots and translocation to shoots of weak acids in barley. Pestic. Sci. 19:101–112.Google Scholar
2. Gauvrit, C. and Gaillardon, P. 1991. Effect of low temperatures on 2,4-D behavior in maize plants. Weed Res. 31:135–142.Google Scholar
3. Greenspan, L. 1977. Humidity fixed points of binary saturated aqueous solutions. J. Res. Nat. Bureau of Standards–A. Physics and Chem. 81A:89–96.Google Scholar
4. Hess, F. D. 1985. Herbicide absorption and translocation and their relationship to plant tolerances and susceptibility. Pages 191–214 in Duke, S. O., ed. Weed Physiology, Vol. II. CRC Press, Inc., Boca Raton, FL.Google Scholar
5. Hunt, G. M. and Baker, E. A. 1982. Developmental and environmental variations in plant epicuticular waxes: some effects on the penetration of naphthylacetic acid. Pages 279–292 in Cutler, D. F., Alvin, K. L., and Price, C. E., eds. The Plant Cuticle. Linnean Soc. Symp. Ser. No. 10. Academic Press, New York.Google Scholar
6. Lane, M. A. 1985. Taxonomy of Gutierrezia (Compositae: Astereae) in North America. Syst. Bot. 10:7–28.Google Scholar
7. Lym, R. G. and Moxness, K. D. 1989. Absorption, translocation, and metabolism of picloram and 2,4-D in leafy spurge (Euphorbia esula). Weed Sci. 37:498–502.Google Scholar
8. Mayeux, H. S. Jr. and Johnson, H. B. 1989. Absorption and translocation of picloram by Lindheimer pricklypear (Opuntia lindheimeri). Weed Sci. 37:161–166.Google Scholar
9. Mayeux, H. S. Jr. and Scifres, C. J. 1980. Foliar uptake and transport of 2,4-D and picloram by Drummond's goldenweed (Isocoma drummondii). Weed Sci. 28:678–682.Google Scholar
10. McDaniel, K. C. and Duncan, D. W. 1987. Broom snakeweed (Gutierrezia sarothrae) control with picloram and metsulfuron. Weed Sci. 35:837–841.CrossRefGoogle Scholar
11. McDaniel, K. C., Pieper, R. D., and Donart, G. B. 1982. Grass response following thinning of broom snakeweed. J. Range Manage. 35:142–145.Google Scholar
12. McDaniel, K. C. and Torell, A. 1987. Ecology and management of broom snakeweed. Pages 110–115 in Capinera, J. L., ed. Integrated Pest Management on Rangeland: A Shortgrass Prairie Perspective. Westview Press, Boulder, CO.Google Scholar
13. Moxness, K. D. and Lym, R. G. 1989. Environment and spray additive effects on picloram absorption and translocation in leafy spurge (Euphorbia esula). Weed Sci. 37:181–186.Google Scholar
14. Norris, R. F. and Bukovac, M. J. 1972. Effect of pH on penetration of naphthaleneaceticamide through isolated pear leaf cuticle. Plant Physiol. 49:615–618.CrossRefGoogle ScholarPubMed
15. Perrin, D. D. and Dempsey, B. 1974. Page 148 in Buffers for pH and Metal Ion Control. Chapman and Hall, London.Google Scholar
16. Price, C. E. 1982. A review of the factors influencing the penetration of pesticides through plant leaves. Pages 237–252 in Cutler, D. F., Alvin, K. L., and Price, C. E., eds. The Plant Cuticle. Linnean Soc. Symp. Ser. No. 10. Academic Press, New York.Google Scholar
17. Schönherr, J. and Bukovac, M. J. 1973. Ion exchange properties of isolated tomato fruit cuticular membrane: exchange capacity, nature of fixed charges and cation selectivity. Planta 109:73–93.CrossRefGoogle ScholarPubMed
18. Sharma, M. P., Chang, F. Y., and Vanden Born, W. H. 1971. Penetration and translocation of picloram in Canada thistle. Weed Sci. 19:349–355.Google Scholar
19. Sharma, M. P. and Vanden Born, W. H. 1970. Foliar penetration of picloram and 2,4-D in aspen and balsam poplar. Weed Sci. 18:57–63.Google Scholar
20. Stevens, P.J.G. and Baker, E. A. 1987. Factors affecting the foliar absorption and redistribution of pesticides. 1. Properties of leaf surfaces and their interactions with spray droplets. Pestic. Sci. 19:265–281.CrossRefGoogle Scholar
21. Torell, L. A., Gordon, H. W., McDaniel, K. C., and McGinty, A. 1986. Economic impacts of broom snakeweed infestations. Ecology and Economic Impact of Poisonous Plants on Livestock Production. Westview Press, Denver, CO.Google Scholar
22. Wilson, B. J. and Nishimoto, R. K. 1975. Ammonium sulfate enhancement of picloram absorption by detached leaves. Weed Sci. 23:297–301.Google Scholar