Question: My mom and I are big fans of your and Doug’s show on KDKA radio. I was listening last Sunday morning, and an organic black spot prevention product was mentioned. I wasn’t able to write it ...

A gardening expert says underplanting roses can help shield them from the common fungal disease that plagues British gardens ...

Your roses should now be bursting into bloom, adding heady fragrance and rich colour to your garden – unless the dreaded black spot has done its worst. If you see dark brown or black blotches appear ...

Dear Roger: I have waged an endless and fruitless battle against black spot on my roses for many years. I have used a lot of fungicides of various kinds. However, I am beginning to worry that most ...

Gardeners should note that roses need safeguarding not just from January's chill but also from ailments like black spot, which flourishes in damp weather. Black spot is a serious fungal infection ...