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Effect of flight activity of stem weevils (Ceutorhynchus napi, C. pallidactylus) and application time on insecticide efficacy and yield of winter oilseed rape

Author

Listed:
  • Tomáš Spitzer

    (Agrotest fyto, Ltd, Kroměříž, Czech Republic)

  • Pavel Matušinský

    (Agrotest fyto, Ltd, Kroměříž, Czech Republic)

  • Dagmar Spitzerová

    (Agrotest fyto, Ltd, Kroměříž, Czech Republic)

  • Jan Bílovský

    (Agrotest fyto, Ltd, Kroměříž, Czech Republic)

  • Jan Kazda

    (Department of Plant Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

During 2010-2012, we monitored flight activity of male and female stem weevils (Ceutorhynchus napi, C. pallidactylus) using yellow water traps, the effectiveness of various application dates for the insecticide thiacloprid (72 g active ingredient/ha), and the influence on yield. The first occurrence of beetles in traps was recorded after soil temperature at 5 cm reached 8°C in all experimental years. In all years, males of C. pallidactylus dominated in the traps and the times of beetles' first occurrence. The most effective applications of thiacloprid at the stated rate were 14 days (2010), 6 days (2011), and 1 day (2012) after peak flight. Females with eggs appeared in bowls in 2010 and 2012 at first flight, while in 2011 no females were recorded. After the most effective applications, yields increased significantly in 2010 (+5% vs. the control) and in 2011 (+4%), and insignificantly in 2012 (+2%).

Suggested Citation

  • Tomáš Spitzer & Pavel Matušinský & Dagmar Spitzerová & Jan Bílovský & Jan Kazda, 2014. "Effect of flight activity of stem weevils (Ceutorhynchus napi, C. pallidactylus) and application time on insecticide efficacy and yield of winter oilseed rape," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 50(3), pages 129-134.
    • Handle: RePEc:caa:jnlpps:v:50:y:2014:i:3:id:21-2013-pps
    DOI: 10.17221/21/2013-PPS
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    References listed on IDEAS

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    1. Josef Šedivý & Jan Vašák, 2002. "Differences in flight activity of pests on winter and spring oilseed rape," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 38(4), pages 139-144.
    2. Marek Seidenglanz & Jana Poslušná & Eva Hrudová, 2009. "The importance of monitoring the Ceutorhynchus pallidactylus female flight activity for the timing of insecticidal treatment," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 45(3), pages 103-112.
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    Cited by:

    1. Michael Eickermann & Franz Kai Ronellenfitsch & Juergen Junk, 2020. "Developing a decision support tool to forecast the abundance of the cabbage stem weevil in winter oilseed rape," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 56(4), pages 285-291.

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