Phenology and overwintering of the Colorado potato beetleLeptinotarsa decemlineataSay in 2008–2015 in Estonia
| Autor: | Angela Ploomi, Anne Luik, Eha Kruus, Ingrid H. Williams, Külli Hiiesaar, Viacheslav Eremeev, Luule Metspalu, Marika Mänd, Katrin Jõgar |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
biology Range (biology) Ecology Phenology Colorado potato beetle Soil Science biology.organism_classification 010603 evolutionary biology 01 natural sciences law.invention 010602 entomology law Food supply Quarantine PEST analysis Agronomy and Crop Science Leptinotarsa Overwintering |
| Zdroj: | Acta Agriculturae Scandinavica, Section B — Soil & Plant Science. 66:502-509 |
| ISSN: | 1651-1913 0906-4710 |
| DOI: | 10.1080/09064710.2016.1183701 |
| Popis: | Before its establishment in Estonia at the beginning of the twenty-first century, the Colorado potato beetle Leptinotarsa decemlineata Say was a notifiable quarantine pest for many years. In high-latitude environments it encounters strong evolutionary pressure to adapt to low temperatures due to high overwintering mortality and periodic influx of new individuals from more southern populations. Our study focused on gathering evidence for such a range shift leading to the formation of a permanent local population. The phenology and overwintering success of beetles was investigated from 2008 to 2015. Depending on weather conditions in the different years, the overwintered beetles emerged from the soil from the beginning of May to mid-June. Over 700 degree days accumulated in 2010, 2011, 2013 and 2014 exceeding the limit needed for development of two generations. However, food supply and temperature distribution in the growing period enabled development of the second complete generation only in 2010 a... |
| Databáze: | OpenAIRE |
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