54 Hans Sachtleben, Biologische Bekämpfungsmaßnahmen 



1891 an, weitere folgten im nächsten Jahr. Die eingeführten Käfer wurden ausgesetzt, 

 hielten sich jedoch in den Olivengärten von Santa Barbara, in denen sie gegen S. oleae aus- 

 gesetzt wurden, nicht, konnten sich auch sonst den verschiedenen klimatischen Bedingungen 



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