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Types of maple trees in nc4/5/2024 ![]() In heavy infestations, individual erineum galls can merge into larger patches that sometimes cover an entire leaf. Photograph by Jason M Crockwell via iNaturalist, used under a CC BY-NC-ND 4.0 license.įigure 7. Like other gall mites, heavy infestations can impact the photosynthetic potential of individual leaves but don't generally impact overall tree health (Figures 7,8).įigure 6. The exact fall morphology varies somewhat between mite species and host trees, but in general the galls are green or red fuzzy patches resembling felt on the lower and upper leaf surfaces (Figure 6). saccharum), Norway maple ( Acer platanoides), mountain maple ( Acer spicatum) Description Scientific name: Aceria spp., Aculops spp. Erineum or felt gall mites Classification ![]() Photograph by karenandphillip via iNaturalist, used under a CC BY-NC 4.0 license. Notes the spiky appearance of the leaves. Maple leaves heavily infested with spindle galls. Photograph by Nick Furlan via iNaturalist, used under a CC BY 4.0 license.įigure 5. Photograph by Timothy Frey via iNaturalist, used under a CC BY 4.0 license.įigure 4. Otherwise, the life history is similar to that described for maple bladdergall mites above.įigure 3. In high abundance, they can give the leaf a spiked appearance (Figure 4). The galls are green but may turn pinkish. Maple spindle gall mites induce small, elongate, projecting galls on the upper surface of foliage (Figures 2, 3). Scientific name: Vasates aceriscrumena ((Riley & Vasey, 1870) Photograph by Michael Cooper via iNaturalist, used under a CC BY-NC 4.0 license. Heavy infestations of maple bladder galls can deform leaves and reduce a leaf's ability to photosynthesize. Photograph by epic2112 via iNaturalist, used under a CC BY-NC 4.0 license.įigure 2. Young mites hatch from the eggs and remain within the gall until they reach maturity, at which time they move to new leaves to start new galls.įigure 1. Mating and egg deposition also takes place within the gall. Galls have an opening on the underside of the leaf, so mites can exit the gall if necessary. Early in the spring they migrate to newly expanding leaves and begin to feed. Maple bladdergall mites overwinter as adults under bark scales and other protected sites on the host tree. In some cases, galls become so abundant that infested leaves become deformed (Figure 2). ![]() The galls are initially green, then turn red, and eventually black. These galls are usually noticed during May, about the time the leaves are fully expanded. Maple bladdergall mites induce globular growths about 2.5-3 mm in diameter on the upper leaf surface (Figure 1). Order: Trombidiformes (Trombidiform mites) Hosts Scientific name: Vasates quadripedes Shimer, 1869 While these galls may be aesthetically unappealing to some, they do not affect the overall health of the infested tree and rarely warrant control. Maple leaves are often host a variety of brilliantly colored, odd-shaped galls, which are caused eriophyid mites and gall midges. Retrieved November 15, 2020.Galls are irregular plant growths that are induced by a range of different of insects and mites. “Silver Maple Acer saccharinum.” Arbor Day Foundation, . Native Trees of the Southeast: An Identification Guide. It is also highly susceptible to various pests and diseases. It can also be used for commercial wood pulp.Īs a quick-growing tree, the silver maple’s wood is soft and brittle making it easily damaged in wind or ice storms. The silver maple is mostly used as shade trees. The silver maple also offers a nesting place for ducks and other birds. The buds and bark are used as a food source for small birds, chipmunks, beavers, and deer. It also produces a yellowish-brown samara fruit that grows 2-3 inches long and matures in early spring. It produces small greenish-yellow flowers that appear in the early spring before the leaves grow back. The bark of this tree is light gray and smooth getting lightly fissured and scaly as it ages. Its leaves have 5 lobes and are a whiteish silver color on the underside and green on top. This deciduous tree reaches heights of 50-80 feet tall. It can be found in floodplains and along stream banks and riverbanks and can tolerate a variety of soil types. The silver maple is native to the eastern and central United States and southeastern Canada but is not commonly seen in the southeastern Atlantic Coastal Plain, however, it is seen in the Gulf Coastal Plain.
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