Phenology of cabbage stem flea beetle (Psylliodes chrysocephala L) in oilseed rape

  • Lazar I Sivčev Institute for Plant Protection and Environment, Teodora Drajzera 9, Belgrade
  • Draga Graora Faculty of Agriculture, University of Belgrade, Nemanjina 6, Zemun
  • Ivan Sivčev Institute for Plant Protection and Environment, Teodora Drajzera 9, Belgrade
  • Vladimir Tomić Faculty of Biology, University of Belgrade, Studentski trg 16, Belgrade
  • Boris Dudić Faculty of Biology, University of Belgrade, Studentski trg 16, Belgrade
Keywords: Cabbage stem flea beetle, Oilseed rape, Phenology,

Abstract


The cabbage stem flea beetle (Psylliodes chrysocephala (L.) is an important pest of winter oilseed rape in Serbia. Beetles colonize oilseed rape in early October and are active in the field until first frost and wintertime. In autumn, adults can be seen laying eggs in the soil around plants. Larvae of P. chrysocephala developed intensively on leaf petioles in November, reaching their highest numbers at the end of the month. No infested plants were found in a conventional field, while 14.5% of all dissected leaf petioles were infested on an integrated field. On unprotected plants in an organic field, 76.0% of the plants were infested with larvae at the growth-stage BBCH 18-19, with 31.1% infested leaves on average. As a results, the number of plants was reduced by 51%, i.e. from 43.0/m2 recorded in the autumn to 22.0/m2 in the following spring. A new generation of P. chrysocephala beetles emerged from the soil in the first half of June and rapidly escaped the fields from almost dry plants. Our results showed that a part of the population stayed in aestivation and emerged in the following crop during the next season. On the following 5 March, 0.5 beetles/m2 were found in emergence cages
in the organic field, while 0.81beetles/m2 were found in the former trap crop.

Author Biography

Lazar I Sivčev, Institute for Plant Protection and Environment, Teodora Drajzera 9, Belgrade

Department of plant pests

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Published
2017/02/03
How to Cite
Sivčev, L. I., Graora, D., Sivčev, I., Tomić, V., & Dudić, B. (2017). Phenology of cabbage stem flea beetle (Psylliodes chrysocephala L) in oilseed rape. Pesticides and Phytomedicine / Pesticidi I Fitomedicina, 31(3-4). Retrieved from https://aseestant.ceon.rs/index.php/pif/article/view/11999
Section
Original Scientific Paper