Norfolk status Common where foodplant found. When occurring in large numbers, entire trees can be damaged, the needles turning pale as the larvae eat them from within. Leaf-mine: July to October, feeding again from April to May.
[MBGBI vol3, p282]
Determination by Genitalia Examination (gen. det.) Required
Recorded in 24 (35%) of 69 10k Squares. First Recorded in 1874. Last Recorded in 2020. Additional Stats