A new forest pest, the birch sawfly, has appeared in Estonia and is ravaging birch stands. Monitoring is needed to determine how serious a threat it may pose to birch forests in the coming years. At ...

The deep mountain slopes of Jukpari, Subi-myeon, Yeongyang-gun, Gyeongsangbuk-do are filled with pure white birch trees. This birch forest area is a national forest, and it has been 30 years since the ...