Discoloured Japanese Yew

I have three Japanese Yew (Taxus cuspidata ‘Nana’), which I bought from a nursery and planted nearly 15 years ago. They don’t have any obvious signs of disease (e.g. no bumps, webs, crawly things). However, they look unwell; the leaves…

Japanese Yew infestation

I live in Niagara, Welland to be precise and have had a continuing problem through the summer with my yews. Leaves yellow somewhat and drop. They show signs of some sort of sucking insect but I have never actually seen…