ABSTRACT Several insect species, including those belonging to Geometridae, pose serious threats to oak stands, primarily by causing cyclic defoliation and increasing the vulnerability of trees to adverse secondary factors. Our major study goal was to compare the effectiveness of two types of pheromone traps, funnel vs. bucket traps, for capturing Operophtera brumata males, and the effectiveness of two types of barrier traps, glue bands vs. collar traps, installed on tree trunks for capturing flightless geometrid females that climb host trees to mate and oviposit. The relationship between catches of O. brumata males and females captured using the funnel and collar traps, respectively, was also assessed. The numbers of males in the two types of pheromone traps did not differ significantly, and the practical use of these traps is discussed. Among the traps targeting females, the collar traps showed much higher effectiveness than the glue bands. The relationship between the O. brumata male and female catches was significant and was described by an exponential function, which can be used for estimating female density using male catches and vice versa. Our study found significant advantages of collar traps over glue bands for monitoring oak defoliating geometrid species.

中文翻译：

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监测橡树落叶几何体的工具——捕捉雄性和雌性的陷阱

摘要 几种昆虫物种，包括那些属于尺蠖科的昆虫物种，主要通过引起周期性落叶和增加树木对不利次要因素的脆弱性，对橡树林构成严重威胁。我们的主要研究目标是比较两种类型的信息素诱捕器（漏斗型诱捕器与斗型诱捕器）在捕获 Operophtera brumata 雄性方面的有效性，以及安装在树干上的两种类型的屏障诱捕器（胶带与衣领诱捕器）捕获不会飞的几何雌性，它们会爬上寄主树交配和产卵。还评估了分别使用漏斗和项圈陷阱捕获的 O. brumata 雄性和雌性捕获量之间的关系。两种信息素陷阱中的雄性数量没有显着差异，讨论了这些陷阱的实际用途。在针对女性的陷阱中，衣领陷阱显示出比胶水带高得多的效果。O. brumata 雄性和雌性渔获量之间的关系是显着的，并由指数函数描述，该函数可用于使用雄性渔获量估计雌性密度，反之亦然。我们的研究发现，在监测橡树落叶几何学物种方面，衣领陷阱比胶粘带具有显着优势。