Dr. Holló Ferenc szerk.: Parasitologia Hungarica 3. (Budapest, 1970)

Parasit. Hung. 3. 187-196. 1970 An Examination of Mosquite Breeding Sites Depending on Water Level in the Innundation Area of the Danuhe between Szob and Dunaföldvár Dr. János B. SZABÓ Department for Desinfection, Desinsection and Dératisation, National Institute of Public Health, Budapest Most of the breeding sites of mosquitoes in the Great Bend of the Danube in Hungary are of an inundation or flood-time character. It was established that mainly Aedes vexans breeds In these sites, but also Aedes rossicus, Aedes cinereus, and Aedes caspius breed here to a certain extent. No significant mosquite breeding sites come into being after rainfalls in the Danube Bend. Some Anopheles maculipennis breeding also takes place in several waters of a more constant character (Surány, Alsógöd, Budakalász), at least according to investigations of recent years. However, their extent and the rate of breeding are so negligible that there exists no Anopheles danger in the region under investigation. On the other hand,several cut-off branches of the Danube at Soroksár (Csepel Island) and the marshy region of the southern tip of the Island produce rather populous Anopheles imagos in suitable weather, affecting the inhabitants of the villages Dunaharaszti, Szigetszentmiklós, Tököl, Szigetújfalu, Szigetbecse, and Szigetcsép. Concerning the mechanism of origin of the breeding sites, it was found (SZABÓ, 1964) that they come into being, of diverse extent, in close relationship with the^ given water level and its duration in the Bend of the Danube. Their size varies between 100-2200 cadastral yokes. Water level was invariably referred in our work to the fluviometer at Budapest. According to