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首页> 外文学位 >Host preference and potential impact of pine shoot beetle [Tomicus piniperda (L.) (Coleoptera: Scolytidae)] in Michigan pine stands.
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Host preference and potential impact of pine shoot beetle [Tomicus piniperda (L.) (Coleoptera: Scolytidae)] in Michigan pine stands.

机译：在密歇根州松林中，寄主偏好和松梢甲虫[Tomicus piniperda（L。）（鞘翅目：Scolytidae）]的寄主偏好和潜在影响。

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摘要

The common pine shoot beetle, Tomicus piniperda (L.) (Coleoptera: Scolytidae), is a native pest of pines in Eurasia that was discovered in North America in 1992. More information is needed concerning T. piniperda host preference as it becomes established in North American forests. Distribution, host preference and potential impacts were examined using red (Pinus resinosa Ait.), jack (Pinus banksiana Lamb.) and Scotch pine (Pinus sylvestris L.) in laboratory and field experiments between 1997 and 1999.; T. piniperda populations were well-established in southwestern lower Michigan, beginning to immigrate into mid-Michigan, and not found in northwestern lower Michigan between 1997 and 1999. T. piniperda colonized Scotch pine logs more frequently than red and jack pine in southwestern stands. In laboratory experiments, T. piniperda parent adults preferentially colonized Scotch pine logs over red and jack pine logs, while progeny adults preferred jack and Scotch pine shoots over red pine shoots.; Pine stands were surveyed to quantify the frequency and extent of shoot damage attributable to T. piniperda, native shoot-feeding insects, and non-insect factors to evaluate the current impact of T. piniperda in Michigan. Non-insect factors accounted for the majority of shoot damage. T. piniperda damaged shoots most frequently in Scotch pine stands. Implications of this research for developing improved methods to detect and manage T. piniperda in forest ecosystems are discussed.
机译：常见的松树甲虫Tomicus piniperda（L。）（鞘翅目：鞘翅目）是1992年在北美发现的欧亚大陆松树的原生害虫。北美森林。在1997年至1999年之间的实验室和田间试验中，使用红色（Pinus resinosa Ait。），千斤顶（Pinus bankiana Lamb。）和苏格兰松树（Pinus sylvestris L.）检查了分布，寄主偏好和潜在影响。 T. piniperda种群在密歇根州西南部下部地区建立良好，开始移居至密歇根州中部，在1997年至1999年之间在密歇根州西北部下部没有发现。T. piniperda种群在苏格兰松树原木上的繁殖频率高于红色和杰克松。 。在实验室实验中，T。piniperda亲本成虫在红色松树和杰克松树原木上优先定居于苏格兰松木原木，而后代成年人更喜欢在红松树梢上定植杰克和苏格兰松木苗。对松林进行了调查，以量化可归因于T. piniperda，原生芽摄食昆虫和非昆虫因素的芽损伤频率和程度，以评估T. piniperda在密歇根州的当前影响。非昆虫因素占芽损伤的大部分。樟子松（T. piniperda）损坏的枝条在苏格兰松树架中最常见。讨论了这项研究对开发改进的方法来检测和管理森林生态系统中的T. piniperda的意义。

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