Maple tree has small holes and black markings

My maple tree is two years old. I do not want to lose it. Attached is a picture showing several leaves. As you can see the new ones look perfectly healthy. What can/should I do to salvage the tree. See…

Pink spots on grape leaves

My 4 year old grape vine is in a sunny spot getting 8-9 hours of sun in Mississauga ontario has developed pinkish red spot on leaves. Will up load a picture. What to stop and prevent it? Thank you.…

Ohio Buckeye in northern Ontario

Hello, I live in Nipigon (north of Thunder Bay) and my Ohio Buckeye has numerous canker-like scars on the twigs. I wanted to ask someone in Toronto as you might be more familiar with this species. I’m a retired Forest…

Dying plum tree

Toronto – We have 5 fruit trees/bushes that are 5 years old. Early July last year our cherry tree had one branch die back, leaves curled down to back, wilted and discolored to fall colours. Cut that one off but…

Brown Spots on Tomatoes

Hello Master Gardeners. Looking for help in determining what these brown spots are on our tomato plants. – Backyard garden is in Toronto – March 21 – Tomato seeds started indoors – April 30 – Repotted to 3” pots –…

Boxwood Hedges

Hello, I have a hedge of boxwoods that have been thriving for several years now. This spring, I noticed that one section was developing yellow leaves, particularly on the sides. I assumed it needed some fertilizer treatment and so I…

Boxwood blight

Our boxwood leaves are turning brown and I am concerned it is boxwood blight…what do you think?…

Ailing Japanese Maple

Hello, I planted this japanese maple 3.5 years ago. In the last year it has started dying. We cut back the branches that were dying, last fall. The part that is dying is not sprouting new growth and the part…

Italian plum

I live in the Midwest just south of Chicago tree is in sun majority of the day soil is black dirt with a little clay it’s about 5 to 6 years old the base of trunk is about 5 inch…