GRID BAITING OF SPRUCE STANDS WITH FRONTALIN FOR PREHARVEST CONTAINMENT OF THE SPRUCE BEETLE, DENDROCTONUS-RUFIPENNIS (KIRBY) (COL, SCOLYTIDAE)

被引:10
作者
SHORE, TL
HALL, PM
MAHER, TF
机构
[1] MINIST FORESTS,PROTECT BRANCH,VICTORIA V8W 3E7,BC,CANADA
[2] TFM FORESTRY LTD,KAMLOOPS V2C 5K9,BC,CANADA
来源
JOURNAL OF APPLIED ENTOMOLOGY-ZEITSCHRIFT FUR ANGEWANDTE ENTOMOLOGIE | 1990年 / 109卷 / 03期
关键词
D O I
10.1111/j.1439-0418.1990.tb00057.x
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Paired 9 ha plots were established in spruce stands near Prince George, British Columbia in 1984. Plots baited with frontalin and α‐pinene at 50 m grid intervals had significantly higher numbers of attacked spruce trees than unbaited plots. Attack densities were slightly lower on baited compared to unbaked trees, but overall more than four times the number of attacks occurred on trees in the baited plots. The pattern of attacked trees in the plots suggests that the effective range of the attractant semiochemicals, as released in this study, may be near 25 m. Rasterartige Beköderung mit Frontalin in Fichten‐Endnutzungsbeständen zur Konzentrierung von Dendroctonus rufipennis (Kirby) (Col., Scolytidae) In der Umgebung von Prince George, British Columbia, wurden 1984 in Fichtenbeständen paarweise je 9 ha große Versuchsflächen eingerichtet. Die Flächen, die in einem 50‐m‐Raster mit Frontalin und α‐Pinen beködert wurden, wiesen eine signifikant höhere Anzahl befallener Fichten auf als die unbeköderten Flächen. Die Befallsdichte war bei beköderten Bäumen etwas niedriger als bei unbeköderten, aber insgesamt wurde in den behandelten Beständen vierfach stärkerer Befall registriert als in den unbehandelten Beständen. Das Befallsmuster ließ erkennen, daß die Wirkungsreichweite der Lockstoffe in diesem Versuch ca. 25 m betrug. 1990 Blackwell Verlag GmbH
引用
收藏
页码:315 / 319
页数:5
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