Journal of Chemical Ecology

, Volume 14, Issue 4, pp 1177–1185 | Cite as

Responses of northern and western corn rootworms to semiochemical attractants in corn fields

  • D. R. Lance


Small plots (18 × 18 m) were treated with grids of cotton wicks that contained semiochemicals for adultDiabrotica barberi Smith and Lawrence, the northern corn rootworm (NCR). In plots treated with eugenol (350 g/hectare), NCR were attracted to point sources of the compound, but there were no significant changes in numbers of either NCR orD. virgifera virgifera LeConte, the western corn rootworm (WCR), found on plants in the plots. In plots treated with 12.5 mg/hectare of 8R-methyl-2R-decyl propanoate (2R,8R-MDP, the apparent female-produced sex pheromone of NCR and WCR), males of both species were attracted to point sources, but beetles did not congregate within treated plots. With racemic 2,8-MDP at 1.0 g/hectare, male WCR were attracted into plots, but NCR of both sexes were strongly repelled. In a separate study, capture of beetles at pheromone-baited traps declined when the surrounding area contained wicks that emitted racemic 2,8-MDP. In treated plots, male WCR were relatively inefficient at finding pheromone sources. With NCR, emigration from plots could account totally for the observed 3- to 10-fold reduction in catch at 0.01–1.0 g/hectare.

Key words

Coleoptera Chrysomelidae Diabrotica virgifera virgifera Diabrotica barberi sex pheromone 8-methyl-2-decyl propanoate eugenol attractant repellant disruption diastereomers 


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  1. Andersen, J.F., andMetcalf, R.L. 1986. Identification of a volatile attractant forDiabrotica andAcalymma spp. from blossoms ofCucurbita maxima Duchesne.J. Chem. Ecol. 12:687–699.Google Scholar
  2. Bartell, R.J. 1982. Mechanisms of communication disruption by pheromone in the control of Lepidoptera: A review.Physiol. Entomol. 7:353–364.Google Scholar
  3. Guss, P.L., Sonnet, P.E., Carney, R.L., Branson, T.F., andTumlinson, J.H. 1984. Response ofDiabrotica virgifera virgifera, D. v. zeae, andD. porracea to stereoisomers of 8-methyl-2-decyl propanoate.J. Chem. Ecol. 10:1123–1131.Google Scholar
  4. Guss, P.L., Sonnet, P.E., Carney, R.L., Tumlinson, J.H., andWilkin, P.J. 1985. Response of northern corn rootworm,Diabrotica barberi Smith and Lawrence, to stereoisomers of 8-methyl-2-decyl propanoate.J. Chem. Ecol. 11:21–26.Google Scholar
  5. Johnson, T.B., Raemisch, D.R., Las, A.S., andTurpin, F.T. 1985. Response of western corn rootworm (Coleoptera: Chrysomelidae) adults to several semiochemicals in cornfields.J. Econ. Entomol. 78:85–88.Google Scholar
  6. Krysan, J.L., Wilkin, P.H., Tumlinson, J.H., Sonnet, P.E., Carney, R.L., andGuss, P.L. 1986. Responses ofDiabrotica lemniscata andD. longicornis to stereoisomers of 8-methyl-2-decyl-propanoate and studies on the pheromone ofD. longicornis.Ann. Entomol. Soc. Am. 79:742–746.Google Scholar
  7. Ladd, T.L., Krysan, J.L., andGuss, P.L. 1985. Corn rootworms (Coleoptera: Chrysomelidae): Response to eugenol and 8R-methyl-2R-decyl propanoate.J. Econ. Entomol. 78:844–847.Google Scholar
  8. Lampman, R.L., Metcalf, R.L., andAndersen, J.F. 1987. Semiochemical attractants ofDiabrotica undecimpunctata howardi Barber, southern corn rootworm, andDiabrotica virgifera LeConte, the western corn rootworm (Coleoptera: Chrysomelidae).J. Chem. Ecol. 13:959–975.Google Scholar
  9. Metcalf, R.L., Metcalf, R.A., andRhodes, A.M. 1980. Cucurbitacins as kairomones for diabroticite beetles.Proc. Natl. Acad. Sci. U.S.A. 77:3769–3772.Google Scholar
  10. Rhodes, A.M., Metcalf, R.L., andMetcalf, E.R. 1980. BitterCucurbita hybrids as baits for diabroticite beetle control.Cucurbit Genet. Rep. 3:44.Google Scholar
  11. Shaw, J.T., Ruesink, W.G., Briggs, S.P., andLuckman, W.H. 1984. Monitoring populations of corn rootworm beetles (Coleoptera: Chrysomelidae) with a trap baited with cucurbitacins.J. Econ. Entomol. 77:1495–1499.Google Scholar
  12. Silverstein, R.M. 1979. Enantiomeric composition and bioactivity of chiral semiochemicals in insects, pp. 133–146, in F.J. Ritter (ed.). Chemical Ecology: Odour Communication in Animals. Elsevier/North-Holland, Amsterdam.Google Scholar
  13. Vité, J.P., Billings, R.F., Ware, C.W., andMori, K. 1985. Southern pine beetle: enhancement on inhibition of aggregation response mediated by enantiomers ofendo-brevicomin.Naturwissenschaften 72:99–100.Google Scholar

Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • D. R. Lance
    • 1
  1. 1.USDA, ARS, NPANorthern Grain Insects Research Laboratory Rural Route #3BrookingsSouth Dakota

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