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Monitoring techniques of the western corn rootworm are the precursor to effective IPM strategies

Journal Article


Abstract


  • BACKGROUND

    The western corn rootworm (WCR) is economically the most important pest of maize in Croatia. To predict WCR adult population abundance and variability, traditional, genetic and morphometric monitoring of populations was conducted over time through each phase of the WCR invasion process in Croatia.

    RESULTS

    Through traditional monitoring it was shown that WCR established their current population and reached economic densities after 14 years persisting in the study area. Regression-tree-based modelling showed that the best predictor of WCR adult abundance was the total amount of rainfall. Genetic monitoring indicated that genetic differentiation increased over time at the intrapopulation level, and morphometric monitoring indicated that wing morphotypes varied according to edaphic landscape changes.

    CONCLUSION

    Traditional population metric surveys are important in WCR integrated pest management (IPM), as such surveys can be effectively used to predict population abundances. Novel-use monitoring techniques such as genetics and geometric morphometrics can be used to provide valuable information on variation within and among populations. The monitoring techniques presented herein provide sound data to assist in the understanding of both WCR ecology and population genetics and may provide more information than that currently available using traditional techniques (e.g. sticky traps), and as such these additional techniques should be written into IPM for WCR.

UOW Authors


  •   Lemic, Darija (external author)
  •   Mikac, Katarina
  •   Kozina, Antonela (external author)
  •   Benitez, Hugo A. (external author)
  •   McLean, Chris M.
  •   Bazok, Renata (external author)

Publication Date


  • 2016

Citation


  • Lemic, D., Mikac, K. M., Kozina, A., Benitez, H. A., McLean, C. M. & Bazok, R. (2016). Monitoring techniques of the western corn rootworm are the precursor to effective IPM strategies. Pest Management Science, 72 (2), 405-417.

Scopus Eid


  • 2-s2.0-84954025349

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3451

Number Of Pages


  • 12

Start Page


  • 405

End Page


  • 417

Volume


  • 72

Issue


  • 2

Abstract


  • BACKGROUND

    The western corn rootworm (WCR) is economically the most important pest of maize in Croatia. To predict WCR adult population abundance and variability, traditional, genetic and morphometric monitoring of populations was conducted over time through each phase of the WCR invasion process in Croatia.

    RESULTS

    Through traditional monitoring it was shown that WCR established their current population and reached economic densities after 14 years persisting in the study area. Regression-tree-based modelling showed that the best predictor of WCR adult abundance was the total amount of rainfall. Genetic monitoring indicated that genetic differentiation increased over time at the intrapopulation level, and morphometric monitoring indicated that wing morphotypes varied according to edaphic landscape changes.

    CONCLUSION

    Traditional population metric surveys are important in WCR integrated pest management (IPM), as such surveys can be effectively used to predict population abundances. Novel-use monitoring techniques such as genetics and geometric morphometrics can be used to provide valuable information on variation within and among populations. The monitoring techniques presented herein provide sound data to assist in the understanding of both WCR ecology and population genetics and may provide more information than that currently available using traditional techniques (e.g. sticky traps), and as such these additional techniques should be written into IPM for WCR.

UOW Authors


  •   Lemic, Darija (external author)
  •   Mikac, Katarina
  •   Kozina, Antonela (external author)
  •   Benitez, Hugo A. (external author)
  •   McLean, Chris M.
  •   Bazok, Renata (external author)

Publication Date


  • 2016

Citation


  • Lemic, D., Mikac, K. M., Kozina, A., Benitez, H. A., McLean, C. M. & Bazok, R. (2016). Monitoring techniques of the western corn rootworm are the precursor to effective IPM strategies. Pest Management Science, 72 (2), 405-417.

Scopus Eid


  • 2-s2.0-84954025349

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/3451

Number Of Pages


  • 12

Start Page


  • 405

End Page


  • 417

Volume


  • 72

Issue


  • 2