I cut back my red tipped photinia and now leaves have holes and some are curling. Bushes had black spot and thought cutting way back would help but now I have other symptoms. Some of the new leaves are curling and some have holes or looks like something is eating them. Any suggestions?
Cut Back My Red Tipped Photinia
Certified GKH Gardening Expert
Without a photograph I can not be 100% certain, but the black spot on your red tip could have been caused by a fungus (such as photinia leaf spot). Black spots on leaves could also be sooty mold, which is secreted by aphids, scale or mealybugs, to name a few. These pests, in addition to thrips, can also cause leaf curl and can be difficult to spot - you may need a magnifying glass to see them. I have included links below which discuss these pests and provide a course of treatment.