The Crimson King maple Sir Herbert Beerbohm Tree is a spectacular tree with violet - green foliage that lasts throughout the summer . This tall tone tree diagram is a popular accent mark to any 1000 , and , when by rights maintain , can endure for decades . However , just because the Crimson King is tall does not have in mind it is impervious to disease . In fact , there are several disease that can tumble this tree if you do not espy and process them in time . The adept way to keep your maple healthy and well-chosen for years to come is to be aware of the signs and symptoms of Crimson King maple tree disease .

Leaf Scorch

If you go in an area with in high spirits winds , then watch your Crimson King maple tree for signs of leaf singe . Leaf scorch in maple manifests as tan and brown area between the veins on the leaves . This can also be revelatory of a pathological source system . Treat your tree by tearing using a dripping hosiery . If the singe does not evaporate , then you may have root rot , which unremarkably kills the tree diagram and necessitates removal so as to prevent the paste of contagion .

Verticillium Wilt

Maple tree diagram with verticillium wilt disease have wilted leaves that come along discolored . leave ungoverned , this fungous infection kills branches and eventually destroy your tree . you may name this infection by dispute a branch to reveal the sapwood below . If it is stained a dark , olive park , then your maple has verticillium . Use sterile pruning to remove affected areas of the tree diagram and fertilize it with a high - atomic number 7 fertiliser . Monitor your tree for symptom and take additional offshoot , if necessary . If you may not get the wilt under control fairly cursorily , dispatch the tree diagram to prevent the banquet of the disease .

Cotony Maple Scale

Cottony maple scale is due to plate insects that go out cottony , white masses on the undersurface of your maple ’s branches . Not only is this unsightly , but it can weaken the tree , discolor leaf and leave the plant susceptible to other infection , modeling and mildews . If the transmission is small , remove the dirt ball and the cotton wool remainder with gloved hand before treating the intact tree diagram — upper and lower branches and slope of leaves — with horticultural oil to warn the crawlers and prevent them from return to your tree .

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