In August 2018, unidentified damages were reported on cranberries in a conventional bog located in Quebec (Eastern Canada). Following a field inspection, high percentage of nibbled fruits as well as katydids (Orthoptera: Tettigoniidae) were observed. Several individuals (nymphs and adults) were seen feeding directly on the fruits. Specimens were captured and sent to the “Laboratoire d'expertise et de diagnostic en phytoprotection” of the “Quebec Ministry of Agriculture, Fisheries and Food" (LEDP‐MAPAQ). They were identified as Scudderia pistillata Brunner von Wattenwyl (Orthoptera: Tettigoniidae). Subsequently, a systematic fruit sampling was realized into the beds where damages were observed to assess spatial patterns of infestation. To our knowledge, it constitutes the first mention of significant damages associated to this species in cranberry bogs and, in some cases, up to 5% damages to the fruits were observed. This observation suggests that S. pistillata represents a potential pest for this crop. Additionally, a decrease of damage rates was observed when distancing from the north‐eastern corner of the bog. Hypothesis in regards of damages' spatial pattern is discussed.

中文翻译：

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商业蔓越莓沼泽中的阔翅灌木 katydid Scudderia pistillata（直翅目：Tettigoniidae）造成的果实损害

2018 年 8 月，据报道，位于魁北克（加拿大东部）的传统沼泽中的蔓越莓遭到不明损坏。在实地考察之后，观察到高比例的啃食果实以及蝾螈（直翅目：Tettigoniidae）。看到几个个体（若虫和成虫）直接以果实为食。标本被捕获并送到“魁北克省农业、渔业和食品部”（LEDP-MAPAQ）的“Laboratoire d'expertise et de diagnostic en phytoprotection”。它们被鉴定为 Scudderia pistillata Brunner von Wattenwyl（直翅目：Tettigoniidae） . 随后，对病床进行了系统的水果采样，观察损坏情况以评估侵染的空间模式。据我们所知，这是第一次提到蔓越莓沼泽中与该物种相关的重大损害，在某些情况下，观察到对果实的损害高达 5%。这一观察结果表明 S. pistillata 代表了这种作物的潜在害虫。此外，当远离沼泽的东北角时，观察到损坏率降低。讨论了关于损害空间格局的假设。