An unkempt rose near to the treatment rooms was looking tatty, stripped of much of its foliage. The culprit was not difficult to establish. It was a Large Rose Sawfly, Arge pagana. Confusingly there is another 'Large Rose Sawfly', Arge ochropus also going by the same name.
Arge pagana had defoliated much of a rose shrub in the Hospital grounds.
Northampton General Hospital, 22 August, 2018