Hornbeam and Beech tree diseases

I live near High Park and I was considering planting european beech trees or hornbeam but I just came across some information about diseases in them. Is this a serious enough condition to find another tree and if so are…

Powdery mildew on Hydrangea

Hi. I am a beginner in gardening. I recently purchased the hydrangea in the picture, and some white powder-like markings appear on its leaves. I suspect that those are mildew, and had used Safer’s 3 in 1 Garden Spray Fungicide…