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Untersuchungen über Lebensdauer und Eivorrat der Wacholdersamenwespe Megastigmus bipunctatus Swederus (Hym., Chalc., Torymidae)

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Abstract

Investigations on longevity and fertility of Megastigmus bipunctatus Swederus (Hym., Chalc., Torymidae)

Investigations on the influence of different climatic and nutritional factors on longevity and fertility of adult femaleMegastigmus bipunctatus showed that differences in relative humidity had little effect. In higher temperatures longevity and fertility were reduced; the number of undeveloped eggs was reduced more than the number of mature eggs. Food formulas containing protein in the form of chicken egg albumen had a negative effect on longevity and fertility when compared with data fromM. bipunctatus femals kept without food and water. An increase of both, life span and number of eggs, was observed after giving distilled water, aqueous honey solution or aqueous honey solution enriched with vitamin mixture. A maximum increase was obtained with femals living only on honey solution.

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  1. Institut für Forstzoologie der Universität, Büsgenweg 3, 3400, Göttingen-Weende

    Anna-barbara Göttsche

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  1. Anna-barbara Göttsche
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Göttsche, Ab. Untersuchungen über Lebensdauer und Eivorrat der Wacholdersamenwespe Megastigmus bipunctatus Swederus (Hym., Chalc., Torymidae). Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 50, 40–45 (1977). https://doi.org/10.1007/BF02135077

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  • DOI: https://doi.org/10.1007/BF02135077

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