Hostname: page-component-7479d7b7d-wxhwt Total loading time: 0 Render date: 2024-07-11T02:25:34.690Z Has data issue: false hasContentIssue false

Basis for thifensulfuron-insecticide synergism in soybeans (Glycine max) and corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

William R. Panaram
Affiliation:
Department of Plant Sciences, North Dakota State University, Fargo, ND 58105

Abstract

Fresh weight reductions of greenhouse-grown soybeans and corn treated with post-emergence thifensulfuron at 4.4 g ai ha−1 were synergistically enhanced when the herbicide was mixed with formulated chlorpyrifos or malathion insecticides, but the enhancement was not observed with formulated methomyl insecticide. Thifensulfuron plus formulants of either chlorpyrifos or malathion reduced fresh weights no more than did the herbicide applied alone. Growth rate of hydroponically grown soybeans was reduced by root-applied thifensulfuron in combination with a foliar-applied formulation of chlorpyrifos or malathion, but not methomyl. Postemergence-applied thifensulfuron reduced the growth rate of hydroponically grown soybeans and corn with chlorpyrifos, malathion, or methomyl applied postemergence 1 d before thifensulfuron and with procedures identical to those used for absorption, translocation, and metabolism experiments. None of the insecticides applied 1 d before thifensulfuron altered foliar absorption of 14C-thifensulfuron or its translocation in unifoliolate soybeans or three-leaf corn. Thin-layer chromatography of soybean extracts revealed one primary thifensulfuron metabolite, presumably the deesterified free acid. 14C-thifensulfuron metabolism in corn produced about five unidentified metabolites in appreciable amounts. Levels of unmetabolized 14C-thifensulfuron 24 h after herbicide application were highest in insecticide-treated soybeans and corn. Over all experiments, enhancement of injury and inhibition of thifensulfuron metabolism generally were greatest in soybeans with chlorpyrifos but were greatest in corn with chlorpyrifos or malathion. Synergistic enhancement of thifensulfuron injury to soybeans and corn by chlorpyrifos and malathion appears to result from insecticide inhibition of thifensulfuron detoxication.

Type
Physiology, Chemistry, and Biochemistry
Copyright
Copyright © 1997 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

Ahrens, W. H. 1990. Enhancement of soybean (Glycine max) injury and weed control by thifensulfuron–insecticide mixtures. Weed Technol. 4: 524528.CrossRefGoogle Scholar
Ahrens, W. H. and Panaram, W. R. 1989. Effect of corn growth stage on injury by DPX-M6316–insecticide tank mixes. Res. Rep. North Cent. Weed Sci. Soc. 46: 297298.Google Scholar
Baerg, R. J., Barrett, M., and Polge, N. D. 1994. Insecticide modifications of cytochrome P450 mediated herbicide metabolism. Abstr. Weed Sci. Soc. Am. 34: 61.Google Scholar
Brown, H. M., Dietrich, R. F., Kenyon, W. H., and Lichtner, F. T. 1991. Prospects for the biorational design of crop selective herbicides. Proc. Brighton Crop Prot. Conf—Weeds 2: 847855.Google Scholar
Brown, H. M., Wittenbach, V. A., Forney, D. R., and Strachan, S. D. 1990. Basis for soybean tolerance to thifensulfuron methyl. Pestic. Biochem. Physiol. 37: 303313.CrossRefGoogle Scholar
Chang, F. Y., Smith, L. W., and Stephenson, G. R. 1971. Insecticide inhibition of herbicide metabolism in leaf tissues. J. Agric. Food Chem. 19: 11831186.CrossRefGoogle ScholarPubMed
Corbin, F. T., Moreland, D. E., and Siminszky, B. 1993. Metabolism of primisulfuron in terbufos and/or naphthalic anhydride-treated corn. Abstr. Weed Sci. Soc. Am. 33: 70.Google Scholar
DelRosario, D. A. and Putnam, A. R. 1973. Enhancement of foliar activity of linuron with carbaryl. Weed Sci. 21: 465468.CrossRefGoogle Scholar
Diehl, K. E., Stoller, E. W., and Barrett, M. 1995. In vivo and in vitro inhibition of nicosulfuron metabolism by terbufos metabolites in maize. Pestic. Biochem. Physiol. 51: 137149.CrossRefGoogle Scholar
Eberlein, C. V., Rosow, K. M., Geadelmann, J. L., and Openshaw, S. J. 1989. Differential tolerance of corn genotypes to DPX-M6316. Weed Sci. 37: 651657.CrossRefGoogle Scholar
Frazier, T. L., Nissen, S. J., Mortensen, D. A., and Meinke, L. J. 1993. The influence of terbufos on primisulfuron absorption and fate in corn (Zea mays). Weed Sci. 41: 664668.CrossRefGoogle Scholar
Hatzios, K. K. 1993. Mode of action of naphthalic anhydride as a maize safener for thifensulfuron–methyl. Proc. Brighton Crop Prot. Conf.—Weeds 3: 12591266.Google Scholar
Hatzios, K. K. and Penner, D. 1985. Interactions of herbicides with other agrochemicals in higher plants. Rev. Weed Sci. 1: 163.Google Scholar
Hoagland, D. R. and Anion, D. I. 1950. The water culture method for growing plants without soil. Calif. Agric. Exp. Stn. Circ. 347.Google Scholar
Holshouser, D. L., Chandler, J. M., and Smith, H. R. 1991. The influence of terbufos on the response of five corn (Zea mays) hybrids to CGA-136872. Weed Technol. 5: 165168.CrossRefGoogle Scholar
Kolbezen, M. J., Metcalf, R. L., and Fukuto, T. R. 1954. Insecticidal activity of carbamate Cholinesterase inhibitors. J. Agric. Food Chem. 2: 864870.CrossRefGoogle Scholar
Kreuz, K. and Fonné-Pfister, R. 1992. Herbicide-insecticide interaction in maize: malathion inhibits cytochrome-P450 dependent primisulfuron metabolism. Pestic. Biochem. Physiol. 43: 232240.CrossRefGoogle Scholar
Matsunaka, S. 1968. Propanil hydrolysis: inhibition in rice plants by insecticides. Science 160: 13601361.CrossRefGoogle ScholarPubMed
Metcalf, R. L. and March, R. B. 1949. Studies on the mode of action of parathion and its derivatives and their toxicity to insects. J. Econ. Entomol. 42: 721728.CrossRefGoogle ScholarPubMed
Moreland, D. E. and Corbin, F. T. 1994. Differential metabolism of substrates by microsomes isolated from sorghum, corn, and mung bean seedlings. Abstr. Weed Sci. Soc. Am. 34: 61.Google Scholar
Moreland, D. E., Corbin, F T., and McFarland, J. E. 1993. Oxidation of multiple substrates by corn shoot microsomes. Pestic. Biochem. Physiol. 47: 206214.CrossRefGoogle Scholar
Morton, C. A., Harvey, R. G., Kells, J. J., Lueshen, W. E., and Fritz, V. A. 1991. Effect of DPX-V9360 and terbufos on field and sweet corn (Zea mays) under three environments. Weed Technol. 5: 130136.CrossRefGoogle Scholar
O&Keefe, D. P., Romesser, J. A., and Leto, K. J. 1987. Plant and bacterial cytochromes P-450: involvement in herbicide metabolism. in Saunders, J. A., Kosak-Channing, L., and Conn, E. E., eds. Phytochemical Effects of Environmental Compounds. New York: Plenum, pp. 151173.CrossRefGoogle Scholar
Swanson, C. R. and Swanson, H. R. 1968. Inhibition of degradation of monuron in cotton leaf tissue by carbamate insecticides. Weed Sci. 16: 481484.CrossRefGoogle Scholar
Walker, L. M., Hatzios, K. K., and Wilson, H. P. 1994. Absorption, translocation, and metabolism of 14C-thifensulfuron in soybean (Glycine max), spurred anoda (Anoda cristata), and velvetleaf (Abutilon theophrasti). Plant Growth Regul. 13: 2732.CrossRefGoogle Scholar