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首页> 外文期刊>Nachrichtenblatt des Deutschen Pflanzenschutzdienstes >Untersuchung von Baeckerboecken (Monochamus galloprovincialis Ol.) als Vektoren holzbewohnender Nematoden in einem Waldbrandgebiet in Brandenburg
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Untersuchung von Baeckerboecken (Monochamus galloprovincialis Ol.) als Vektoren holzbewohnender Nematoden in einem Waldbrandgebiet in Brandenburg

机译：作为勃兰登堡州森林火灾地区木栖线虫载体的Baeckerboecken（Monochamus galloprovincialis Ol。）的调查

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A forest fire in the region of the Hammer head forestry office, Brandenburg, in June 2000 led to a mass multiplication of the pine sawyer beetle Monochamus galloprovincialis, using damaged trees, cut wood and felling debris as breeding sites. This beetle is known to be a vector for the quarantine nema-tode Bursaphelenchus xylophilus and the closely related species Bursaphelenchus mucronatus (Nematoda, Parasitaphe-lenchidae). A year after the forest fire, 46 beetles were collected and investigated for the presence of dauer juveniles of wood inhabiting nematodes. Dauer juveniles were found on 66 % of the beetles, ranging from seven to 40 000 per beetle (mean 3 608). The mode value was nine dauer juveniles per beetle. The beetles, which carried dauer juveniles, were grouped into common logarithmic classes based on the number of dauer juveniles carried per beetle. The class with the highest number of beetles was 11 to 100 dauer juveniles, the second largest class was 1 to 10 dauer juveniles. Rearing of the dauer juveniles on Botrytis cinerea revealed the presence of two species. B. mucronatus developed in most cases, whereas Diplogasteroides haslacheri was present on one beetle. A comparison of the statistical results on the presence of B. mucronatus in this study with statistical data on the number of B. mucronatus on M. galloprovincialis and M. sutor in Scandinavia and the number of B. xylophilus on M. galloprovincialis in Portugal revealed similarities. The distribution pattern may be described as positively skewed and, therefore, the arithmetical mean is not a suitable measure for representing the load of dauer juveniles carried by the beetles. The typical number of dauer juveniles per beetle was represented by a median of approximately 60 (59.5). Numbers of dauer juveniles per beetle of several thousands are more seldom. An experiment was conducted to attempt to transmit dauer juveniles during maturation feeding by three males and three females of newly hatched M. galloprovincialis which were caged on 4-year-old Pinus sylvestris plants; despite the fact that all six insects fed on shoots for one week, no nematodes could subsequently be found in the pine plants.
机译：2000年6月，位于勃兰登堡（Brandenburg）的哈默（Hammer）头林业办公室地区发生的森林大火，使用了受损的树木，砍伐的木材和砍伐的碎屑作为繁殖地，使松木锯甲虫Monochamus galloprovincialis大量繁殖。已知该甲虫是隔离线虫Bursaphelenchus xylophilus和密切相关的物种Bursaphelenchus mucronatus（Nematoda，Parasitaphe-lenchidae）的载体。森林大火发生后的一年，收集了46只甲虫，并调查了其中是否有Dauer幼虫居住在木质线虫中。在66％的甲虫中发现了Dauer幼虫，范围为每只甲虫7至40 000（平均3608）。该模式值为每只甲虫9道尔少年。根据每个甲虫携带的dauer幼虫的数量，将携带dauer幼虫的甲虫分为普通对数类。甲虫数量最多的类别是11至100道尔少年，第二大类别是1至10 dau幼年。在灰葡萄孢上饲养道尔氏幼鱼揭示了两个物种的存在。大多数情况下会发育粘液芽胞杆菌，而一只甲虫则存在双翅类双峰。这项研究中存在的粘液芽孢杆菌的统计结果与斯堪的那维亚的M. galloprovincialis和M. sutor上的B. mucronatus数量以及葡萄牙的M. galloprovincialis的X.ophilusus数量的统计数据进行了比较。相似之处。分布模式可以描述为正偏，因此，算术平均值不是代表甲虫携带的多厄幼鱼负荷的合适度量。每只甲虫的dauer幼鱼的典型数量以中位数约60（59.5）表示。每几千只甲虫的道尔幼鱼数量很少。进行了一项实验，试图在笼养在4岁的樟子松植物上的新孵化的M. galloprovincialis的三头雄性和三头雌性在成熟喂养过程中传播dauer幼体。尽管事实上所有六种昆虫都在芽上觅食了一个星期，但随后在松树植物中没有发现线虫。

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