ABSTRACT This study was conducted in Aydin, Turkey to determine mite species composition and their population densities in unsprayed chestnut orchards. Weekly samples were taken between April and November in 2015 and 2016 in Kosk, Nazilli and Sultanhisar districts of Aydin. As a result, six mite species belonging to two orders and five families were identified. The mite species found were Rhyncaphytoptus castaneae and Oligonychus coffeae as plant feeders, Euseius finlandicus, Typhlodromus psyllakisi and Anystis baccarum as predators, and Tydeus caudatus as a scavenger. Rhyncaphytoptus castaneae and O. coffeae are new records for Turkish fauna. Castanea sativa is recorded as a new host plant for O. coffeae. The population of R. castaneae peaked in June, July and October. Oligonychus coffeae and the predatory mite, E. finlandicus, appeared throughout the growing periods of chestnut and their population peaked in August. The occurrence of E. finlandicus was highly correlated with the presence of O. coffeae in all orchards, whereas E. finlandicus was not correlated with the presence of R. castaneae according to Sorenson’s coefficient.

中文翻译：

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土耳其栗树上螨类组成及其种群密度

摘要 本研究在土耳其艾登进行，以确定未喷洒的栗园中的螨类组成及其种群密度。2015 年和 2016 年 4 月至 11 月期间，每周在 Aydin 的 Kosk、Nazilli 和 Sultanhisar 地区采集样本。结果，确定了属于两个目五个科的六个螨类。发现的螨种类是作为植物饲养者的 Rhyncaphytoptus castaneae 和 Oligonychus coffeae，作为捕食者的 Euseius finlandicus、Typhlodromus psyllakisi 和 Anystis baccarum，以及作为清道夫的 Tydeus caudatus。Rhyncaphytoptus castaneae 和 O. coffeae 是土耳其动物群的新记录。Castanea sativa 被记录为 O. coffeae 的新寄主植物。R. castaneae 的种群在 6 月、7 月和 10 月达到顶峰。Oligonychus coffeae 和捕食性螨，E. finlandicus，出现在整个板栗的生长时期，其种群在 8 月达到顶峰。根据 Sorenson 系数，E. finlandicus 的发生与所有果园中 O. coffeae 的存在高度相关，而 E. finlandicus 与 R. castaneae 的存在无关。