Perennial phloxes and roses, I would call the most capricious in the garden. The former are easily affected by powdery mildew, and many summer residents make the mistake of cutting off diseased plants and throwing them away (or even worse, sending them to the compost heap). Before cutting off the «sick», after flowering, they must be treated with means against powdery mildew (spill the leaves and stems from the watering can with a solution of copper sulfate: 1 tbsp. L. Per 10 l of water).
After three days, you can already prune. In the spring, while flowers have not yet appeared, plants that were sick with powdery mildew last year should be treated with 1% Bordeaux mixture or colloidal sulfur (50 g per 6 liters of water). As for roses, aphids and spider mites are very fond of them. For aphids, you can treat the plant with the «Commander» agent (2 ml per 8 l of water) — spray it with a rose solution at any time, even at the time of budding and flowering. If aphids reappear after a while, repeat the procedure..
