Overview of development of an anti‐attractant based technology for spruce protection against Ips typographus: From past failures to future success

Springer Science and Business Media LLC - Tập 76 Số 4 - Trang 89-99 - 2003
Rastislav Jakuš1, Fredrik Schlyter2, Q.-H. Zhang2, Miroslav Blaženec1, R. Vaverčák3, W. Grodzki4, Dušan Brutovský5, Eva Lajzová3, Marek Turčáni6, Marie Bengtsson2, Zoltan Blum7, Jean Grégoire8
1Laboratory of forest protection, Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
2Chemical Ecology, Department of Crop Science, Swedish University of Agricultural Sciences (SLU), Alnarp, Sweden;
3Faculty of Forestry, Technical University in Zvolen, Slovakia
4Forest Research Institute, Krakow, Poland
5Forest Research Institute, Zvolen, Slovakia
6Forest Research Institute Zvolen, Research Station B. Štiavnica, B. Štiavnica, Slovakia;
7Sch. of Technol. & Society, Malmo Univ., Sweden
8Laboratoire de Biologie animale et cellulaire, Université libre de Bruxelles, Belgium

Tóm tắt

Abstract

We describe a series of experiments on the protection of Norway spruce (Picea abies (L.) Karst.) logs and standing trees against Ips typographus L. (Coleoptera: Scolytidae). The tested protective materials were applied 1) at point sources and 2) area‐covering using zeolite‐based dispensers. We performed 11 terrestrial and one aerial application (using a helicopter) between 1992 and 2001. We gradually replaced polyethylene‐bag verbenone dispensers by composite dispensers releasing verbenone and non‐host volatiles (NHV: green leaf volatiles, trans‐conophthorin, and C8‐alcohols). Many experiments did not give statistically significant results, due to the low number of true replicates and the spatial heterogeneity of beetle attacks. The protection of horizontal objects like logs or lying trees with anti‐attractants was not always successful. In the future, positive results can be expected with an area covering spray applied by zeolite dispensers containing mixtures of verbenone and NHV. A similar approach could probably be used in aerial spraying of anti‐attractants.

We have succeeded in our attempt to protect zones of standing spruce trees from I. typographus attacks. We used dispensers with a combination of verbenone and a full blend of NHV compounds. The protection is not complete, but in both 2000 and 2001, the treatment significantly decreased the probability of the insect attack on trees by 60–80 %.

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Springer Science and Business Media LLC

Tập 76 Số 4

89-99

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