Observed species, number of sites and trees and analyzed phenophases in Munich in 2010. BBCH 61: beginning of flowering: 10% of flowers open/emitting pollen, BBCH 65: full
flowering: >50% of flowers open/emitting pollen, first petals falling, BBCH 10: mouse-ear stage: green leaf tips 10 mm above the bud scales, BBCH 11: first leaves unfolded.