Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-24T11:31:39.876Z Has data issue: false hasContentIssue false
  • English
  • Français

EFFECTS OF COMBINATIONS OF CHLORPYRIFOS AND CYPERMETHRIN ON MORTALITY OF CORN EARWORM AND FALL ARMYWORM (LEPIDOPTERA: NOCTUIDAE) LARVAE

Published online by Cambridge University Press:  31 May 2012

L.D. Chandler ,
J.L. Robertson  and
H.K. Preisler
L.D. Chandler
Affiliation:
Insect Biology and Population Management Research Laboratory, U.S. Department of Agriculture, Agricultural Research Service, PO Box 748, Tifton, Georgia, USA 31793
J.L. Robertson
Affiliation:
Pacific Southwest Experiment Station, U.S. Department of Agriculture, Forest Service, PO Box 245, Berkeley, California, USA 94701
H.K. Preisler
Affiliation:
Pacific Southwest Experiment Station, U.S. Department of Agriculture, Forest Service, PO Box 245, Berkeley, California, USA 94701
Get access Rights & Permissions [Opens in a new window]

Abstract

Mixtures of chlorpyrifos and cypermethrin were tested against 1-day-old larvae of corn earworm, Helicoverpa zea (Boddie), and fall armyworm, Spodoptera frugiperda (J.E. Smith), to determine the type of joint action involved in insect mortality. Statistical analyses indicated that mixtures of both insecticides interacted additively in both species. Chlorpyrifos alone was not as effective against larvae of fall armyworm as it was against larvae of corn earworm. No apparent differences in toxicity between the two species were observed with cypermethrin.

Résumé

Des mélanges de chlorpyrifos et de cyperméthrine ont été utilisés sur des Vers de l’épi de maïs, Helicoverpa zea (Boddie), âgés de 1 jour, et des larves de 1 jour de la Légionnaire d’automne, Spodoptera frugiperda (J.E. Smith), dans le but de déterminer quel type d’interaction entre les deux insecticides entraîne la mortalité des insectes. Les analyses statistiques ont démontré que les mélanges des deux insecticides ont des effets additifs chez les deux espèces. Le chlorpyrifos utilisé seul n’est pas aussi efficace contre les larves de la Légionnaire d’automne que contre les Vers de l’épi de maïs. La cyperméthrine semble avoir la même toxicité chez les deux espèces d’insectes.

[Traduit par la Rédaction]

Type
Articles
Information
The Canadian Entomologist , Volume 127 , Issue 1 , February 1995 , pp. 25 - 32
Copyright
Copyright © Entomological Society of Canada 1995

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

All, J.N., Ali, M., Hornyak, E.P., and Weaver, J.B.. 1977. Joint action of two pyrethroids with methyl-parathion, methomyl, and chlorpyrifos on Heliothis zea and H. virescens in the laboratory and in cotton and sweetcorn. Journal of Economic Entomology 70: 813–817.CrossRefGoogle Scholar
Burton, R.L. 1969. Mass Rearing the Corn Earworm in the Laboratory. USDA-ARS 33–134: 8 pp.Google Scholar
Clower, D.F. 1987. Insecticide resistance – a continuing challenge. pp. 214–215 in Nelson, T.C. (Ed.), Proceedings Beltwide Cotton Production Research Conference. National Cotton Council of America, Memphis, TN. 563 pp.Google Scholar
El-Sebae, A.H., Metcalf, R.L., and Fukuto, T.R.. 1964. Carbamate insecticides: Synergism by organothyrocyanates. Journal of Economic Entomology 57: 478–482.CrossRefGoogle Scholar
Goebel, R., and Jacquemard, P.. 1990. Evaluation of the sensitivity of the cotton boll pest Heliothis armigera Hbn. to cypermethrin–chlorpyrifos and cypermethrin–methylparathion mixtures. Study of possible interactions between these insecticides. Coton et Fibres Tropicales 45: 141–143.Google Scholar
Hewlett, P.S. 1961. Joint action in insecticides. pp. 89–119 in Metcalf, R.L. (Ed.), Advances in Pest Control Research, Vol. iii. Interscience Publications, New York, NY. 448 pp.Google Scholar
Koziol, F.S., and Witkowski, J.F.. 1982. Synergism studies with binary mixtures of permethrin plus methyl parathion, chlorpyrifos, and malathion on European corn borer larvae. Journal of Economic Entomology 75: 28–30.CrossRefGoogle Scholar
LeOra Software. 1987. POLO-PC, A User's Guide to Probit or Logit Analysis. LeOra Software, Inc., Berkeley, CA. 15 pp.Google Scholar
Perkins, W.D. 1979. Laboratory rearing of the fall armyworm. Florida Entomologist 62: 87–91.CrossRefGoogle Scholar
Pitre, H.N., Mistric, W.J., and Lincoln, C.G.. 1979. Economic thresholds: Concepts and techniques. pp. 12–30 in Sterling, W.L. (Ed.), Economic Thresholds and Sampling of Heliothis Species on Cotton, Corn, Soybeans and Other Host Plants. Southern Cooperative Series Bulletin 231: 159 pp.Google Scholar
Plapp, F.W. Jr., 1979. Synergism of pyrethroid insecticides by formamidines against Heliothis pests of cotton. Journal of Economic Entomology 72: 667–670.CrossRefGoogle Scholar
Robertson, J.L., and Preisler, H.K.. 1992. Pesticide Bioassays with Arthropods. CRC Press, Boca Raton, FL. 127 pp.Google Scholar
Sparks, A.N. 1979. A review of the biology of the fall armyworm. Florida Entomologist 62: 82–87.CrossRefGoogle Scholar
Statistical Sciences Inc. 1991. S-Plus for DOS. Statistical Sciences Inc., Seattle, WA. 400 pp.Google Scholar
Turner, N. 1951. Synergism between nicotine and pyrethrum. Journal of Economic Entomology 44: 106–108.CrossRefGoogle Scholar
Wolfenbarger, D.A., and Cantu, E.. 1975. Enhanced toxicity of carbaryl when combined with synergists against larvae of the bollworm, Heliothis zea and the tobacco budworm, Heliothis virescens. Florida Entomologist 58: 103–104.Google Scholar