Damage and nuisance

 

  • Leaves

The damage of Byctiscus betulae is visible at phenological stage F, and it is materialized by bites  irregular, rectilinear and elongated . Note that the female incises the petiole then rolls up the blade which gives it the shape of a cigar (figures 1 to 5).

More rarely, this insect (figure 6) can attack herbaceous twigs, causing perforations.

Last change : 04/20/21
Cigarier_5
Figure 1
Cigarier_6
Figure 2
Cigarier_7
Figure 3
Cigarier9
Figure 4
Cigarier13
Figure 5
Cigarier3
Figure 6