Summary of the Express Pest Risk Analysis for Agrilus anxius (Gory, 1841)
Bronze birch borer may appear in the PRA area. The most probably way of entry is intercontinental transport of birchwood from area of agrophage occurrence. The suitable weather conditions, occurrence of host plants suggest that Agrilus anxius may cause losses in forests with birches, even bigger then in its native range. Birches are commonly trees in the entire PRA area but no as monocultures. They also constitute a relatively low proportion of mixed stands. Therefore, risk of destruction of forest is limited.
All imported wood material need to be destroy by burning in case of Agrilus anxius occurence.
Eradication measures will be probably inefficient in case of bronze birch borer occurrence in natural environment in PRA area
Timely identification is very difficult because of:
- biology of this species- short lasting imago stage
- similar species living under birch bark- misidentification, especially of preimaginal stages
- adults quickly start to reproduce and settle to a new host plant, even in great distance from parent plant
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