32+ Hydrangea Leaf Curl. Black spots on hydrangea leaves. Hydrangea leaf curling is fairly common and one of the main causes is lack of water but diseases and insects can also be a cause.
Pruning hydrangeas helps to keep them healthy and blooming.
Hydrangea leaf curling is fairly common and one of the main causes is lack of water but diseases and insects can also be a cause. Department of agriculture hardiness zones 5 through 9, might develop brown or curling leaves and buds through infestations. Pepper leaf curl virus (peplcv) is a dna virus from the genus begomovirus and the family geminiviridae. Hydrangea leaftier larva (photo from diagnostic laboratory, crop protection, ministry of agriculture, fisheries and quebec).