Witch’s Broom on the Willow (Summer Appearance)
The above are only a few of the many insects that injure our forest trees; but those treated of are the most familiar to the forester, and those whose attacks he has most frequently to wage war against. Willow trees all over London are suffering severely from attacks of a mite insect. It is known as the “Witch’s Broom” on the Willow (Eriophyes triradiatus).
Remedial measures are frequently of little avail, more particularly when a whole wood or plantation is attacked; but with single specimens the numbers may readily be lessened by the methods suggested.