Brown on Spruce needles

Hello Toronto Master Gardeners, Our Black Spruce normally gets brown needles on the inside, which fall off. This is not an issue, normally. But now, there is much more blastiness all over the tree. Kindly see attached. Is this just…

Using Disease and Blackspot Control Fungicide

Hi there, we bought a house this year and the house came with a rose bed in the backyard. I believe they are Australian roses (but I might be wrong). The roses has some sort of a pest since almost…

Japanese Maple issues

Hello, I am in Zone 5 and this Japanese maple has been planted in this location for 4 years. We have a French drain that diverts the roof rain water away from this area. However, this summer the rainfall has…

Serviceberry rust

We have a problem with rust on our serviceberry bush. The bush is about 3 years old. The rust is visible in the spring & continues through the summer. Is there anything that we can do to get rid of…

Diamantina Clematis

Help!!, My 3 year old dementia is loaded with beautiful flowers in a pot on our south w facing terrace. It overwinter well and is blooming well, but suddenly some of the leaves are turning brown black and you the…

Shrub for fungus-prone garden

We have a small urban backyard garden in Toronto. Our pagoda dogwood died of golden canker. Our serviceberry has rust (probably related to neighbouring juniper). We would like to plant a flowering shrub in the spot where the pagoda dogwood…

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…

Dying dogwood and serviceberries (partially)

Hi my dogwood and serviceberries have some branches that seem dying. The top half of the dogwood seems completely dead. And a really long brand of the serviceberries is dark black with lots of spots on it. All those branches…

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…