This spring, one started to produce leaves, but then suddenly stopped. One of these fungal diseases, Verticillium wilt, is prevalent among Japanese maples. The curling is caused by a fungus. Due to the root, plant structural, and photosynthesis issues which many pests can cause, depending in the pest and severity of the infestation, it can cause curled up leaves. Hi, I've had a red maple tree and the leaves are all curled up. The causal agent is the fungus Taphrina carveri.The disease may go unnoticed until a large number of leaves are severely infected and begin to fall from the tree. This Spring considerable dead branches had to be cut back. We've been getting plenty of rain for the last two weeks. I recently uprooted it and out it in a nice open area. Leaf curl is a disease of the tree and if left untreated your popular tree will eventually die. The other cause of curling leaves could be bugs and pests. Eventually the amount of leaves (or fruits) will decrease. Leaves on the same branch often show similar symptoms but an entire tree may not be uniformly affected. To care for your popular tree treat the fungus with a natural plant cleaner. I have a weeping japanese maple and a red burg any type both are curling my weeping one yellowed and now browning and the red one the leaves are curling live in Plano, Texas and have them in containers under patio arbor...help please I have backed off watering and testing soil . The second tree produced leaves, but they did not completely “unfurl” either – look smaller than usual. Over time the leaves will become thicker and softer. What does it mean when you find your plant's leaves are curling? The tree has remained mostly bare, with sparse “baby” leaves with curled up brown edges. Since then, it has slowly but steadily lost all its leaves by curling, drying up and falling off. I used recommended soil for weeping and tree shrub for other. Among the usual suspects for dying leaves are several fungal diseases and aphids. {{gwi:387119}} Thanks, Nancy. peaches20. Any help appreciated. For the last two years the tree’s leaves have started curling and burning up in early June. Entire leaves may curl and wither when leaf scorch is severe. There are certain bugs and pests which are known to cause the curling of cannabis leaves. Here is one answer to maple leaf curl: Taphrina Leaf Curl (quote) Taphrina leaf curl -- also known as maple leaf blister (Taphrina carveri) -- strikes unfurling maple leaves in early spring. red Maple leaves curling please help. A foliar disease called leaf blister has been common on silver and red maples and their hybrids during the past few weeks. Maple trees can have any number of diseases and other problems that can cause leaves to develop spots, turn yellow or brown--or die. For 20 years we’ve had a Japanese maple in perfect health. Deciduous tree leaves will wilt and if corrective steps are not immediately taken, may eventually turn brown and drop. i had a Japanese maple tree that was in a bad area, other trees were around it and it hindered its growth. I have been watering regularly. These browning symptoms begin first on the youngest (newest) leaves which are more delicate and sensitive to water loss. I don't know what's causing this. Wilted or curling leaves that may turn brown at the tips or edge; A sparse canopy of off-color and undersized leaves, leaf scorch or yellowing leaves; Untimely fall color and early leaf drop ... “The grass quickly slurps up the sprinkler’s water, leaving your tree thirsty. Not one single leaf has grown over the past 5 months. 7 years ago. The rest of the tree bloomed out normally, but within a month the leaves did the same thing as last year. Email Save Comment 8. Scorched leaves are more evident on the sides of the trees most exposed to prevailing winds and strong sunlight. 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