Martin-Luther-Universität Halle-Wittenberg: Elektronische Zeitschriften
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Verbreitung und Biologie der an mitteleuropäischen Arznei- und Gewürzpflanzen schädlichen Blattzikaden: (Hemiptera: Cicadellidae, Typhlocybinae)
Distribution, biology and hostplant relations of typhlocybid leafhopper pests of medical herbs and spices in Central Europe (Hemiptera: Cicadellidae, Typhlocybinae). Biology, distribution, habitat and hostplant requirements of leafhopper pests of medical herbs and spices in Central Europe are summarized on the basis of literature studies and new data. The 6 most important species are Emelyanoviana mollicula (Boh.), Sulphur Leafhopper, Eupt-eryx atropunctata (Goeze), Black-spotted Leafhopper, Eu. aurata (L.), Golden Leafhopper, Eu. florida Rib., Garden Leafhopper, Eu. melissae Curt., Balm Leafhopper and Eu. decemnotata R., Ligurian Leafhopper. The importance of Empoasca pteridis (Dhlb.), Green Potato Leafhopper, still has to be clarified. The special significance of Lamiaceae as host plants for typhlocybine leafhoppers, the role of etherial oils for host choice, biogeographic aspects, expansion histo-ry, hemerophily and its historical dynamics are discussed. The problems caused by misin-terpretations and misidentifications of many species of the genus Eupteryx according to old identification works are demonstrated. This knowledge can be used as a basis for possible pest control measures.Distribution, biology and hostplant relations of typhlocybid leafhopper pests of medical herbs and spices in Central Europe (Hemiptera: Cicadellidae, Typhlocybinae). Biology, distribution, habitat and hostplant requirements of leafhopper pests of medical herbs and spices in Central Europe are summarized on the basis of literature studies and new data. The 6 most important species are Emelyanoviana mollicula (Boh.), Sulphur Leafhopper, Eupt-eryx atropunctata (Goeze), Black-spotted Leafhopper, Eu. aurata (L.), Golden Leafhopper, Eu. florida Rib., Garden Leafhopper, Eu. melissae Curt., Balm Leafhopper and Eu. decemnotata R., Ligurian Leafhopper. The importance of Empoasca pteridis (Dhlb.), Green Potato Leafhopper, still has to be clarified. The special significance of Lamiaceae as host plants for typhlocybine leafhoppers, the role of etherial oils for host choice, biogeographic aspects, expansion histo-ry, hemerophily and its historical dynamics are discussed. The problems caused by misin-terpretations and misidentifications of many species of the genus Eupteryx according to old identification works are demonstrated. This knowledge can be used as a basis for possible pest control measures
Der Erstnachweis von Namur A in der Umgebung von Prettin: Ein Beitrag zur Tiefenkartierung von Sachsen- Anhalt
Die lithologische und paläontologische (paläobotanische) Bewertung von Bohrkernen einschließlich deren geophysikalischen Messergebnissen im Gebiet von Prettin bei Torgau ergab eine stratigraphische Einstufung in das Namur Ae2 (Arnsbergium). Dieses Namur-Alter widerspricht den bisherigen strukturellen Vorstellungen eines Unterrotliegend-Grabens, die damit nicht aufrecht zu erhalten sind. In diesem Raum erstmals nachgewiesene Konglomerate an der Basis des Namurs führen Gerölle, die vermutlich von einem im Liegenden erbohrten Ignimbrit stammen.Lithological and palaeobotanical assessments – including also geophysical measurements – from boreholes in the vicinity of Prettin near Torgau (Sachsen-Anhalt, Germany) indicate a Lower Carboniferous i.e. Namurian Ae2 (Arnsbergium) age. This Namurian age contradicts previous concepts involving the tectonic structure of a rift of Asselian age hypothesized in former publications. Conglomerates from the basis of the Namurian discovered here for the first time have pebbles probably originate from the underlying ignimbrite. This offers important hints about the age of ignimbrites developed in the core