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Pests that impact Q. lyrata include Bucculatrix ainsliella (oak skeletonizer), Corythucha arcuata (oak lace bug), Curculio nucum (nut weevil), and Leaf miners. [6] Like many other oaks, Q. lyrata is susceptible to a high number of plant diseases such as chestnut blight, armillaria root rot, oak leaf blister, and powdery mildew. [6]
Leaves turn shades of yellow-brown (sometimes with orange and red) in fall. Female flowers give way to acorns (to 1" long) which mature in September to October. Overcup oaks usually do not begin bearing acorns until 25-30 years old.
In spite of its natural occurrence where periodical flooding is typical, overcup oak grows well on sites with better drainage and soil texture. It gets its common name from the distinctive bur-like acorn cup that typically encloses 2/3 to almost all of the nut.
Overcup oak is one of the trees most tolerant of flooding (3). Since it leafs out a month or more later than most species, it is better able to endure submergence from late spring floods. In tests, overcup oak survived continuous flooding for at least two growing seasons.
The Overcup Oak is a medium-sized oak with an oval crown and lower branches that sweep upward. This species thrives in lowlands and bottomlands and can tolerate extended flooding. The common name is derived from its acorn, which can be nearly 3/4 "cupped" by the cap.
8 wrz 2020 · Haunting alluvial river bottoms and creek beds across the Deep South, is a highly unusual oak species, Overcup Oak (Quercus lyrata). Unlike nearly any other Oak and most sane people, Overcups occur deep in alluvial swamps and spend most of their lives with their feet wet.
Overcup oak is planted to improve wildlife habitat and for bottomland restoration. Ducks, wild turkeys, hogs, white-tailed deer, squirrels, and smaller rodents eat the acorns. Overcup oak also is planted as an ornamental. The trees can withstand significant flooding and poorly drained soils and are tolerant to drought and cold. In
