Abstract
The studies aimed to acquire the widest possible information on the annual flight in Hungary of the European corn borer (ECB), Ostrinia nubilalis Hübner (Lepidoptera: Pyralidae). The investigations used biomathematical (Part 1) and graphical (Part 2) assay to document forthcoming changes in the individual population number.
The study was conducted in Hungary using ECB moth capture records from the Plant Protection Information System black light trap system (1991–2004). We have drawn conclusions on the appearance of annual flights and the tendency of alterations in flight direction by means of light trap results in four different areas in Hungary. We prepared and estimated the flight phenology diagrams of ECB in this part.
Assay of 224 flight phenology diagrams showed the phenomenon of flight alteration too, which characterized the cyclical change of different phenology types. We determined four well-differentiated flight types. The European corn borer (ECB) univoltine ecotype is characterized by a “bell” type and the bivoltine ecotype is characterized by “nail” type. We also ascertained two temporary types. The “plateau” type can be observed in the initial period of flight alteration, and the “valley” type in the latter stages of flight alteration.
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Keszthelyi, S., Puskás, J. & Nowinszky, L. Changing of Flight Phenology and Ecotype Expansion of the European Corn Borer (Ostrinia Nubilalis Hbn.) in Hungary. CEREAL RESEARCH COMMUNICATIONS 36, 659–667 (2008). https://doi.org/10.1556/CRC.36.2008.4.15
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DOI: https://doi.org/10.1556/CRC.36.2008.4.15