![]() ![]() Copper penetrates the leaf surface and prevents germination of spores so the fungus cannot spread. Reapply as directed on the product label. Spray a copper-based fungicidal soap on the leaves, coating the top and bottom leaf surfaces. Repeat every two weeks until existing spots stop enlarging and new spots no longer appear. Using a spray bottle, spray on tops and bottoms of leaves until the mixture drips off. Dissolve ½ teaspoon of baking soda and one teaspoon of liquid soap in a gallon of water. Organic options won’t kill the fungus, but will prevent it from spreading. It is recommended to start by applying organic treatment options, working up to the more potent synthetic, chemical fungicides if necessary. However, if much of the foliage is affected and defoliation occurs, the plant will benefit from getting rid of the infection. Solutions: In minor cases of brown spot, there isn’t any need to treat the disease. Diseased or damaged stems should be cut right at the soil line and removed completely. ![]() Finally, you may prefer to just trim off dead or damaged portions of the plant to keep it looking its best as if it's possible. Branches that require a saw need to be pruned using the "three-cut method", which prevents the bark of the branch from tearing and creating cracks in the trunk, which can be detrimental to the recovery of the plant. Pruning Saw is required if the branch is more than three quarters of an inch in size, pruning should be done in the direction of the "Branch bark ridge" to the "Branch collar" to allow for good healing. Branches that are too angled or too small should be removed. When pruning branches you need to leave the strong ones and remove the weak ones, keeping healthy auxiliary branches that grow outwards at about 45 degrees. This will increase ventilation and light, reduce disease infection and allow Paperbark maple to grow more vigorously. Leaving these intact will allow the tree to have a more natural and open form. Ideally, you should steer clear from pruning any of the tree’s lower limbs. Keep an eye out for any shoots that are becoming congested or are beginning to cross and remove them. This is the period when pruning causes the least damage to the plant. It is quite unique and cannot be confused with any other tree.The best time to prune Paperbark maple is between late winter to early spring. Ernest Wilson introduced it to Britain for the Veitch Nursery. It shouldn't be planted closer than 10 metres from another similar sized tree or 20 metres from potentially large trees. In Britain most specimens seldom exceed 8 metres tall but the tree can reach 15 metres in ideal growing conditions. It should where possible be viewed from the north side. It won't tolerate full sun all day long so it can be planted out at the end of a narrow vista or in a small open glade. In the horticultural landscape this is an eye-catcher at close or medium range. ![]() Much of the seed produced is pathenocarpic so germination levels are extremely low. In the wild state paperbark maple is now endangered. In autumn a fine display of scarlet and deep red may be expected. New leaves unfold pale orange-brown and turn pinkish yellow before becoming green for the summer. In addition to its distinctive stem this trifoliate maple produces a range of seasonal foliage colours. ![]() These are particularly stunning when back lit by the sun. If left alone curling translucent sheets of paper thin bark eventually hang from the stems and branches. It's small in size and has cinnamon coloured peeling bark. Paper Bark Maple trees (Acer Griseum) Dating back to 1901 in Britain this is a beautiful Chinese curiosity suitable for the arboretum or garden. ![]()
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