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…

Dwarf Burning Bush

I live in North York. In the summer my purple lace died in the front of my house due most likely to verticillium wilt per you when I phoned. The plant was removed roots and all. I need to get…

Thin black patch on apple tree

Hi I noticed this on a branch of my September ruby apple, I live in Saskatoon. I’m hoping you might be able to identify it and if it needs treating. It’s a thin black layer, almost like mildew, that you…

Lilac Borer

I believe my 100 yr old lilac has borer. I understand that the treatment requires hiring a technician with a license to use the required toxic chemicals. I am a senior and concerned about the cost, although I really don’t…

Possible Bacterial Wetwood

Hello, I bought a Freeman Maple Tree last year which was planted as a memorial tree for my Mother in late September. I have looked at it this spring and while it looks like it has plenty of buds, there…

Norfolk Pine – plant disease?

Dear Master Gardener, Over time, wood-colored protrusions have developed at the base of each branch (please see picture), and I am wondering if they are a sign of disease? Please help me identify the issue. I don’t detect any scale,…