Neues zur Bekämpfung des Buchdruckers, Ips typographus L.

Franz, Julius

doi:10.1007/bf02340783

Cited by 6 publications

(1 citation statement)

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“…Crown branches prevent the trunk from falling to the ground and cause substantial water loss from the trunk because the needles attached to the crown branches transpire water for some time. The branch-covered trunk is much more attractive to I. typographus than the trunk with attached branches [17][18][19][20][21]. Advantages of leaving branches attached are (1) the trees can be felled later; and (2) I. typographus fly to trunks with attached branches earlier than to trunks with detached branches [22,23].…”

Section: Introductionmentioning

confidence: 99%

Felled and Lure Trap Trees with Uncut Branches Are Only Weakly Attractive to the Double-Spined Bark Beetle, Ips duplicatus

Šotola

Holuša

Kuželka

et al. 2021

Forests

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Bark beetles are the most important forest pests in the Northern Hemisphere. The range of Ips duplicatus, an invasive bark beetle in central Europe, has been steadily expanding, and it is now responsible for a high proportion of the spruce wood infested by bark beetles. Apart from searching for and eliminating infested trees, there is no effective control method. The aim of this study was to determine whether trap trees with a pheromone evaporator can be used to capture I. duplicatus. Felled trap trees with branches and with pheromone lures (ID Ecolure®) were infested by I. duplicatus, at a median density of 1 nuptial chambers per 0.1 m2 (median); similar trees without lures and lying at a distance of 1, 5, or 10 m from the lure trees were rarely infested by I. duplicatus. The entire surface of the lure trees could capture <400 beetles per tree. The results indicate that lure trap trees (felled and with branches attached) could only be used in a limited number of situations; one such situation would involve forests that suffered wind damage and contained very high numbers of I. duplicatus.

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Section: Introductionmentioning

confidence: 99%