Autumn Blaze ( Acer x freemanii " Jeffersred " ) , a hybrid of red maple ( Acer rubrum ) and argent maple ( Acer saccharinum ) , inherited its fall color from the red maple and its rapid growth fromthe silver maple . It also inherit a susceptibleness to diseases and insect problems that smite both parent and root problem of silver maple .

Autumn Blaze Diseases

Controlling diseases and louse with fungicide and insecticides is usually not pragmatic on a large tree , but you may apply chemicals with a backpack atomizer while the Sir Herbert Beerbohm Tree is lowly . The fungal disease anthracnose , most severe in squiffy weather , causes leaves to turn dark-brown and kills twigs and branches . Spray three multiplication , two week apart , with a fungicide contain the active factor mancozeb at the rate of 3/10 fluid ounces of mancozeb per 1 gallon of water , or according to label rates . Phyllosticta folio bit causes spots that are yellow in the plaza with purple borders . This disease can get the Autumn Blaze maple to drop its folio all over or in certain parts . Spray with mancozeb three time , two weeks apart , when the foliage begin to unfold in the spring . Tar maculation forms chickenhearted spots on the leaves in early summer . In belated summertime , raised , tarry spots form on the yellow spots , causing leaves to drop untimely . They are showy but do niggling scathe . As with phyllosticta folio smudge , spray with mancozeb three times , two workweek aside , on new leave-taking in the give . There is no treatment uncommitted for home exercise for bacterial leaf scorch , which causes leaves to pass or turn browned and kills limb . Diseased trees mislay vigour and can eventually cash in one’s chips . A certified arborist may be able to salve the tree .

Autumn Blaze Insect Pests

bantam aphids prey on the bottoms of leaves and on shoots and buds , secrete a sugary material that develops obscure fungal increase . Spray aphid on lowly Autumn Blaze maples with an insecticide containing the active ingredient permethrin when they appear and restate in a calendar week or 10 days . For a 1 gallon of 2 percent solution suited for a backpack sprayer , meld 6 2/3 ounces of permethrin to 121 1/3 ounces of H2O . Small , immobile scale insects suck sap from the radical and cause scrubby leafage that turn yellow and strike down early . Spray with permethrin when the scales first appear and replicate every 10 days .

Autumn Blaze Root Problems

The roots of Autumn Blaze , like its parent silver maple , lack the ability to adequately stabilize iron in the soil , lead to chlorosis or yellowing of the leave-taking due to iron deficiency . To facilitate roots access iron , make for 4 inches of compost into the top 12 inches of grime well beyond the outmost ramification . utumn Blaze roots can become entwined at the base of the tree or wrap around a turgid root . This problem , called gird , can cause poor vigor , small leaves , leaf singe and the last of humble tree branch . withdraw the circling root and regale the undercut with wound pigment . To aid the tree recover , measure the tree at 4 1/2 ft above the primer and give 3 to 5 British pound sterling of 10 - 6 - 4 fertilizer for each 1 inch of the trunk diam .

you’re able to not lawfully spread a patented flora from antecedent cutting . you’re able to lawfully grow Autumn Blaze from seed , but the tree that results may not be like the original . you may legally root a cutting of the nearly identical Freeman maple ( Acer x freemanii ) , a hybrid of the red maple and silver maple that was developed in 1933 . you may grow both Autumn Blaze and Freeman maple in U.S. Department of Agriculture plant hardiness zones 3 through 8 . Silver maple and red maple turn in USDA zone 3 through 9 .

References

Autumn Colors