Although rose bushes have already started to grow, it is not too late to prune out canes to open up the center of the bush, improve air circulation and preclude problems with black spot disease later in the year.

Although rose bushes have already started to grow, it is not too late to prune out canes to open up the center of the bush, improve air circulation and preclude problems with black spot disease later in the year.

A fungicidal spray now will prevent black spot from getting an early toehold.

Copper- and sulfur-based sprays offer an organic control.