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Gewählte Master / Diploma Thesis:

Lydia Jarmer (2022): Auftreten des Rübenderbrüsslers (Asproparthenis punctiventris) in Ostösterreich unter besonderer Berücksichtigung von Witterungsverhältnissen.
Master / Diploma Thesis - Institut für Meteorologie und Klimatologie, BOKU-Universität für Bodenkultur, pp 105. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Abstract:
The sugar beet weevil (Asproparthenis punctiventris) is one of the most important pests of sugar beet in Austria. Since 2017, a renewed mass infestation with considerable damage for the Austrian sugar beet industry has been observed. This work contributes to the documentation of the occurrence of the sugar beet weevil between 1980 and 2020 in Austria and explores possible correlations of the severity of the infestation with weather conditions. The occurrence of the beetle was surveyed by means of primary data and interviews and recorded in a distribution map. The map serves to illustrate the dynamics of spread during the study period. A large-scale spread of the beetle since the early 2000s and an increasing trend in infestation intensity became apparent. The influence of the weather factors temperature and precipitation on the subjective infestation intensity was investigated by means of regression analysis. The analysis showed that rising average temperatures and an increasing number of summer days can be associated with an increase in infestation intensity. Temperature has a particularly strong effect in the previous year of infestation. High temperatures during the period of activity of the parent generation as well as the egg and larval phase have a positive influence on the infestation intensity of the following year. However, no significant correlation between infestation intensity and precipitation was found. The results can support the development of a monitoring and warning system for farmers. There is a need for research on the influence of soil moisture on infestation intensity and on preventive management and control measures.

Beurteilende*r: Formayer Herbert

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