Birch Leafminer: a major issue of Birch tree in Calgary
Birch leafminer is one of the most common leaf problems in Calgary and surrounding areas. The adult fly is a small, black and 4-winged insect. It is active between May and mid-September, and it has two or three generations per year. Leafminer overwinters as pupae in the soil beneath a birch tree. In spring, the […]
Oystershell scale: a major problem in cotoneaster hedge in Calgary
In last few years, the cotoneaster hedges are severely infested by Oystershell scale which causes die back of the hedge, fail to leaf out and make dead patchy spots. Oystershell scale affects several plant species including apple, Hawthorne, lilacs. It is a major problem in cotoneaster hedge in Calgary and surrounding areas. Developing oystershell scales […]