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Prediction of adult western corn rootworm (Diabrotica virgifera virgifera LeConte) emergence

Author

Listed:
  • Tomáš Středa

    (Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic)

  • Otmar Vahala

    (State Phytosanitary Administration, Brno, Czech Republic)

  • Hana Středová

    (Faculty of Agronomy, Mendel University in Brno, Brno, Czech Republic
    Department of Agrometeorology and Phenology, Branch Office Brno, Czech Hydrometeorological Institute, Brno, Czech Republic)

Abstract

The sum of effective temperatures (SET) of adult western corn rootworm (WCR) occurrence was determined based on several criteria. The risk of WCR occurrence was mapped, and the areas of continuous reproduction of WCR in the Czech Republic were identified. The daily soil SET was observed until the initial adult WCR occurrence, and it ranged from 414 degree days (DD) when the lower threshold temperature (LTT) was 12.5°C at 0.02 m depth to 719 DD (LTT of 10°C at a depth of 0.05 m). The daily air SET ranged from 415 DD (LTT 12.5°C at a height of 2 m) to 726 DD (LTT of 10°C at a height of 0.05 m).

Suggested Citation

  • Tomáš Středa & Otmar Vahala & Hana Středová, 2013. "Prediction of adult western corn rootworm (Diabrotica virgifera virgifera LeConte) emergence," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 49(2), pages 89-97.
    • Handle: RePEc:caa:jnlpps:v:49:y:2013:i:2:id:28-2012-pps
    DOI: 10.17221/28/2012-PPS
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