California native sycamore adaptable to many soil conditions. The California sycamore (Plantanus racemosa), which can reach 50 to 100 feet tall, is native to the California foothills and coast ranges. It also affects shrubs such as privet. Multicounty regions used in agent range maps. Pyramidal form … Platanus racemosa, the California Sycamore or Western Sycamore can become an incredible specimen. California sycamore tree leaves become orangey … The botanical name is Platanus racemosa; the genus, Platanus, comes from the Greek “platanos”, meaning sycamore – and the specific epithet, … The trees are susceptible to several insect infestations and fungal diseases. The American sycamore is hardy in U.S. Department of Agriculture plant hardiness zones 4 through 9, and the California sycamore is hardy in zones 7 through 10. A sycamore’s spreading roots often infiltrate water and sewer lines and damage sidewalks and paved areas. Anthracnose is a common disease among deciduous trees, especially sycamore, ash and oak. Sycamore lace bugs feed on the undersides of the leaves, causing stippling. Sycamore trees grow in diverse regions throughout the United States, but they all have problems with the same pests and diseases. The white bark, and the large foliage will not only visually cool down a landscape, but the large leaves transpire a lot of water and this takes energy out of the atmosphere. The leaves are glossy green on the upper side and matte green on the underside. There is a native fungal disease, … 70 Western sycamore borer (Synanthedon resplendens) Contents 3 Diseases Acorn diseases 72 Drippy nut (Brenneria quercina) Diseases affecting leaves and twigs ... 8 A Field Guide to Insects and Diseases of California Oaks Figure 2. It causes unsightly dark, sunken lesions on leaves, stems, flowers and fruits. Anthracnose blight commonly affects sycamore … Mottled gray and white trunk with patchy, peeling bark. California sycamore is also known by other common names, including “Western sycamore” and “California plane tree” in English, as well as “Alisos” in local Spanish. Sycamore tree leaves: California sycamore tree leaves have five lobes with deep clefts between them. The insects leave black flecks on the lower leaf surface and cause premature defoliation in late summer and early fall. X. fastidiosa from elm does not infect sycamore or vice versa. Sycamores and Blight. See the information on this disease in the "Common Plant Diseases" section. Promote plant vigor by protecting the tree from stresses. These conditions rarely kill the tree, but often leave it looking bedraggled by the end of the season. Thankfully, there are various methods of pest and disease management that will help keep your sycamore trees healthy. 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