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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comI 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?
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URLs in this post:
[1] https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm: https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm
[2] https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm: https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm
[3] https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm: https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm
[4] https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm: https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm
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1 Comment To "cut back my red tipped photinia"
#1 Comment By shelley On 05/20/2015 @ 11:01 am
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.
Aphids:
https://www.gardeningknowhow.com/plant-problems/pests/insects/homemade-aphid-control.htm [1]
Thrips:
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm [2]
Mealybugs:
https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm [3]
Photinia Leaf Spot:
https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm [4]