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Imprint
Development of pest control strategies against the Asian longhorned beetle
Project
Project code: REFORDAT-63, II-1-F 41-2011.02
Contract period: 12.07.2011
- 31.05.2013
Budget: 89,290 Euro
Purpose of research: Applied research
Due to increasing freight transports from the Southeast Asian region the quarantine pest Asian longhorned beetle (Anoplophora glabripennis) was introduced to Europe within wooden package materials (WPM). Until now its local restricted spread is characterized by the infestation of healthy deciduous trees dying slowly due to the effects of this attack. As a consequence rotten branches and loose lumber become hazardous to the surrounding area. Additionally, as shown in U.S. studies, a high decimation of local deciduous trees occurs and a huge economical damage is caused by the chopping and replanting of infected trees. An invasive and uncontrolled spread in the infested areas in the North of Bonn should be avoided by the use of innovative phytomedical and remote sensing methods. These include the modeling of detailed introduction and dispersion pathways of the beetle, but also the development of pest control strategies is supposed to inhibit further spreading of the infestation. Nowadays the hyperspectral remote sensing sensors, like the AISA-series or the Hyperspectral Mapper (HyMap), are well developed and allow monitoring of infestations on large scales at a high spatial and spectral resolution. A digital surface model (DSM) generated from LiDAR-data (“Light detection and ranging”) helps to detect the potential host vegetation on large scales and provides in combination with a tree mapping database the basis for an ALB-dispersal model of endangered areas within the area of interest. This modeling is done by the CLIMEX-software which also considers local climatic conditions. The phytomedicine focuses on the detection of ALB population-structures within the area of investigation, the development of attractant-traps for population estimations and the direct pest control with sustainable techniques. The overall goal is the prevention of additional infestations and the preservation of highly valuable exposed vegetation (“Solitärgehölz”) in endangered areas. This study is being supported by the Plant Protection Administration (PSD) of the Agricultural Chamber of North Rhine-Westphalia (Nordrhein-Westfalen (NRW)). Since 2008 all potential host trees for the ALB in the investigation area have been mapped and stored in a digital database (“tree cadastre”). This cadastre contains detailed information about the vegetation and has also the function as ground truth for calibrating hyperspectral data. The investigations of this study are being conducted in the greater Bonn-Cologne region and enclose the currently infested areas in the North of Bonn.
Section overview
Subjects
- Crop Protection
- Forestry
