Catkin Hypertrophy and Leaf Curl

Catkin hypertrophy and leaf curl cause deformed catkins and distorted new growth. You see enlarged, abnormal catkins and curled foliage. The virus affects flowering and early season development. Remove severely affected trees and manage less affected ones through general care.

Cultural management is your first line: remove infected material, clean up debris, and improve the growing environment to make conditions less favorable for the pathogen. Avoid wounding plants during maintenance, as many pathogens enter through fresh cuts. Chemical options are available for severe cases, but they work best as preventive treatments applied before symptoms appear.