Bronze birch and emerald ash borers

Scientific name: Agrilus anxius i Agrilus planipennis

Size: 8-14 mm

Origin: North America (A. anxius) and North-Eastern Asia (A. planipennis)

Name (ES): Barrenador del abedul y barrenador esmeralda del fresno

Description:

Chilean beetles can attack trees in both forests and crops. 

Females lay eggs in tree bark cracks, larvae develop and feed on the inner bark and trunk cambium, causing damage to the main trunk and larger branches. Finally, they emerge as adults after one or two years.

These borers are a serious pest in birch (Betula pendula and B. pubescens) and ash (Fraxinus spp.) Although damage may be mild in their area of natural origin, European species can be extremely susceptible.

You can download this informative poster

Posted in Species.