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Flight patterns of Russian wheat aphid,Diuraphis noxia (Kurdj.) during its expansion to Central Europe (Hom., Aphididae) |
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| Authors: | Hana Lukašová Zsuzsa Basky Petr Stary |
| Institution: | 1. State Plant Protection Board, Determination Center of Aphids, Jaselská 16, 746 82, Opava, Czech Republic 2. Plant Protection Institute Hungarian Academy of Sciences, Pf. 102, 1525, Budapest, Hungary 3. Institute of Entomology, Academy of Sciences of the Czech Republic, Brani?ovská 31, 370 05, ?eské Budějovice, Czech Republic |
| Abstract: | Flight patterns of migrant alate Russian wheat aphids (=RWA),Diuraphis noxia (Kurdj.) during its expansion from the south-east to Central Europe were determined. Samples were taken by Rothamsted-type suction air traps in Hungary (one location, 1990–1997) and in the Czech Republic (5 locations, 1994–1998). The results document a progressive expansion of RWA, and population variation in the individual years and periods of the season. A comparison of the evidence on RWA in the individual years since its detection in Hungary and in the Czech Republic supports the presumption on the occurrence of an expansion route from the south-east (Turkey) to Central Europe. This expansion is classified as an adventive route of the over-all expansion that has covered the whole West-Mediterranean (South Europe, North Africa). |
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