What is the leaf arrangement of a sycamore maple?
Leaves. Sycamore has a characteristic leafy shape similar to that of Norway maple, but the sycamore leaves are rounded. The leaves have long, reddish colored stems, which are usually five-lobed, with the front three lobes are about the same size. Often the two lower lobes are not fully formed.
Why has my Acer got sticky leaves?
Verticillium is a fungal disease which can live on roots of plants other than acers and survive for many years. The aphids produce a sweet sticky secretions on to the lower leaves which in turn grow a sooty black mould or fungal infection on the leaves below.
Does Acer have opposite leaves?
Acer negundo, the box elder, boxelder maple, Manitoba maple or ash-leaved maple, is a species of maple native to North America. It is a fast-growing, short-lived tree with opposite, compound leaves.
What is the difference between a sycamore leaf and a maple leaf?
Sycamore trees and maple trees have leaves that look similar. Generally, sycamore trees have leaves with shallow indentations between their lobes whereas maple tree leaves have deep indentations. Sycamore tree leaves grow alternately, but maple tree leaves have an opposite leaf arrangement.
Is sycamore an Acer?
The Sycamore is a member of the maple family, known formally as the Aceraceae. (The Latin genus name Acer means sharp, and is a reference not to the form of the tree itself but to its timber. Wood from maple trees, including sycamores, was used for making spears.)
How do I get rid of aphids on my Acers?
If you aren’t particularly squeamish many of the aphids can be killed by running your forefinger and thumb over leaf and shoot surfaces. This will simply squash them to death! Water over the leaves after doing this will wash many of the dead aphids away. A spray is even more effective.
What trees have alternate leaves?
Alternate leaves on stems grow in a staggered pattern and they look like each leaf grows in between the leaves on the opposite side. This means that each plant node only has one leaf growing from it. Examples of trees with alternate leaves include oak trees, sycamore, mulberry, birch, hickory, and willow.
Why is my sycamore tree dropping leaves?
The leaf drop is likely due to anthracnose. Anthracnose is a common fungal disease of sycamore, ash, maple, oak, and other trees. Anthracnose is most severe in years with cool, wet spring weather. Symptoms of anthracnose on sycamores include brown blotches on leaves, death of young buds and shoots, and leaf drop.
How big does an Acer pseudoplatanus tree get?
Deciduous tree, 40-60 ft (12-18 m), upright, spreading branches, oval crown, bark similar to that of a sycamore (flaking in small rectangular scales). Leaves opposite, simple, 7.5-15 cm wide, 3-5 lobed, coarsely crenate-serrate, dark green and glabrous above, greenish-white below.
Where was the Acer pseudoplatanus found in New Zealand?
The plant was discovered as a chance seedling by John Wills in his garden in the Esk Valley, which is on the east coast of New Zealand’s North Island. Oregon State Univ. campus: in plant border on Lower Campus, west of 11th St. and south of Monroe Ave.
When to sow sycamore Acer pseudoplatanus seed?
Used for carving, small domestic items, veneer etc. It is a good fuel and also makes a good charcoal that can be used as a fuel. Seed – best sown as soon as it is ripe in a cold frame, it usually germinates in the following spring.
What kind of disease does a sycamore tree have?
Threats and conservation Sycamore is susceptible to sooty bark, which can lead to wilting of the crown and death of the tree, as well as a variety of other fungal diseases. It may also be affected by horse chestnut scale insect, which appears as fluffy white spots on the trunk and branches during the summer. Trees woods and wildlife