Dahlia flower buds with brown spots

My dahlia buds all seem to have brown spots and when they open the brown spots appear large and not pretty. The plants are 3 feet tall, have healthy stems and leaves, get a full 8 hours of sun.  I…

Black Jewel Raspberry

I have about 10 different varieties of raspberries in my Toronto yard.  They were all planted last year as two year old canes.  This spring I clipped back all of the two year canes planted last year and kept the…

Brown spots on viburnum leaves

I have a Viburnum carlesii ‘Compactum’ which I planted 11 years ago. This year, it has brown spots on the leaves. I’ve looked on the shrub and can’t find any bugs or lumps. I live in mid-town Toronto.…