Join our mailing list to receive the latest updates from HGIC. On Mar 21, 2016, FlyPoison from Rock Hill, SC (Zone 7a) wrote: This is a 'garbage plant' biologically speaking if being grown out of it's native country. species Ligustrum lucidum and L. japonicum, often misidentified, largely due to the complication that shows the species of this genus to differ from each other by small details. Wavy edged leaves of ‘Recurvifolium’ Japanese Privet (Ligustrum japonicum ‘Recurvifolium’). Growth Rate: Japanese privet has a rapid growth rate of 25 inches or more per year. Arid Plant List A tip to tell the two apart: L. japonicum leaves snap when bent, L. lucidum leaves just bend. This exotic shrub is notorious for producing dense thickets, especially in bottomland forests and in floodplains, where these thickets choke out all native plants. Insecticides and Fungicides for Insect Pest and Disease Control on Ligustrum species. The Armillaria root rot fungus also forms black, string-like fungal strands about 1/16-inch in diameter or less. if you don't weed a fence line in California you're almost guaranteed to have one planted there by the birds eventually. The fruit crop is immense and berries will drop on and stain paved areas and cars. The cankers are small initially, but enlarge or coalesce (merge) into large areas that girdle the branch or trunk. Spray Ligustrum shrubs at 10 to 14 day intervals, as needed. However, young seedlings are much easier to pull up than comparably sized pecan, mulberry or oak seedlings. Landscape Use: Glossy privet makes a fine lawn tree and is excellent as a tall screen or windbreak. ‘Howard’ has leaves that are yellow when new and green when mature. All have abundant, showy clusters of very sweet smelling, white flowers in late spring. Fungal Leaf Spots: Leaf spots caused by the fungi Cercospora species and Pseudocercospora species appear as angular to irregular-shaped, tan sunken lesions with purple margins. Botryosphaeria Dieback & Canker: The fungal disease called Botryosphaeria dieback and canker, caused by Botryosphaeria species, is most likely to occur on plants suffering from drought stress, bark injuries, pruning wounds, or other environmental stresses. There is a large example in my neighbor's yard which drops seeds into my yard. Joey Williamson, HGIC Horticulture Extension Agent, Clemson University. When at rest, the wings are held at an angle, roof-like over the body. The infested plant may be stunted. The immature stage is scale-like and does not move. Much better suited to areas where Photinia x fraseri is overused and terribly susceptible to Entomosporium leaf spot. They are thinner and softer than L. japonicum leaves. Mulch shrubs with a 2- to 4-inch layer of bark, pine needles or ground leaves, and avoid piling the mulch against the trunk. Plantae>Magnoliophyta>Magnoliopsida>Scrophulariales>Oleaceae>Ligustrum lucidum Aiton f. A commonly planted evergreen small tree that is less invasive, at present, than Chinese Privet (Ligustrum sinense).

Some trees reach 45' tall and 30' spread. Both adults and immature forms of the citrus whitefly (Dialeurodes citri) feed by sucking plant sap. The leaves are golden yellow. Water movement is stopped beyond that point and results in a rapid wilting or browning of foliage. When aboveground symptoms indicate root rot, roots should be examined as soon as possible. Glossy privet has large clusters of white flowers, followed by many purple-blue berries. Chinese privet spreads both by root sprouts arising from rhizomes and by abundant seed production. Foliar injury from soaps and oils may occur on plants under drought stress. Very similar to Japanese Privet (Ligustrum japonicum), which has smaller leaves (6 cm long vs. 6-15 cm for L. lucidum). Soil in the immediate vicinity also should be removed. Hand remove spotted leaves on lightly diseased plants. They re-grow unless the roots are dug up. Most often this disease is found on trees and shrubs such as oak, pine, rhododendron, and dogwood, but hundreds of plant species, including Ligustrum species, are susceptible. ‘Tricolor’ has leaves that are variegated with white, and they are pink when young.

Frequently chlorosis (yellowing) occurs on the leaf areas surrounding the leaf spots. Leaves turn yellow and die. The leaves are 4 to 6 inches long, glossy dark green on both sides and less spongy than the leaves of Japanese privet. When grown as a tree, L. japonicum is smaller in stature than L. lucidum and is usually 15 to 18 ft. (4.5 to 5.5 m) with an equal spread (can grow to 20 ft.). pe it spreads everywhere here in the southeast...peace..mike. Whiteflies: Whiteflies are not true flies, but are more closely related to scale insects, mealybugs and aphids. Disease development is favored by any factor that encourages wet soil conditions, including poor drainage and over irrigation. Armillaria root rot (Armillaria mellea) fruiting bodies typically appear in autumn after heavy rainfall and appear as numerous, closely packed, honey-colored mushrooms. On May 9, 2009, village1diot from Vacaville, CA (Zone 9b) wrote: Horribly invasive. Joey Williamson, HGIC Horticulture Extension Agent, Clemson University. Any comments about cold hardiness? Mature Height/Spread: This deciduous shrub grows to 6 feet, sometimes to 12 feet. They are thinner and softer than L. japonicum leaves. The leaves are twisted at the tip. However, there may be no evidence of any problems, and suddenly the shrub will die. Growth Rate: The growth rate is very rapid. All recommendations for pesticide use are for South Carolina only and were legal at the time of publication, but the status of registration and use patterns are subject to change by action of state and federal regulatory agencies. There must be 200 seedlings around the neighborhood. Landscape Use: California privet makes a good hedge, when plants are set 9 to 12 inches apart.

Planting too deeply also contributes to the problem. For some this is a great thing, for many others a constant battle against unwanted trees. On Jul 24, 2010, cjaz from Pahrump, NV wrote: We love the plants, but they are starting to turn brown. Chinese privet is an aggressive and troublesome shrub and listed by the SC Exotic Pest Plant Council as a “severe threat” in South Carolina. Waging War on Weeds with Black Plastic Mulch. If a plant has already died from Phytophthora root rot and a replacement is wanted for the same location in the landscape, it is best to choose a plant that is known to have resistance. It is easily transplanted and prefers partial shade to full sun. I literally pull up about 15-20 seedlings each year from my property brought here thanks to the many birds that scatter the seeds far and wide (and everywhere), and you'd better be vigilant about pulling them up or you will soon have a new tall tree in your yard that even if you chop it to the ground will return for years and years from the roots, very drought tolerant and virtually Indestructible, did I mention it also grows ridiculously fast? Whitefly adults (Dialeurodes citri) on the underside of leaf. Dispose of all prunings, as this plant material is a potential source of disease for Ligustrum species, as well as other woody shrubs. On Mar 1, 2008, htop from San Antonio, TX (Zone 8b) wrote: How to distinguish Ligustrum japonicum from Ligustrum lucidum:

It is caused by the fungus Armillaria mellea, which is common in landscape and garden settings. On Jun 20, 2007, JohnStimson from Sunnyvale, CA wrote: This is a truly obnoxious invasive tree.

Cercospora leaf spot on Ligustrum species has a tan center with purple margin and is often accompanied by chlorosis (leaf yellowing) surrounding the spots. Ligustrum japonicum leaves are three to four inches (7.5 to 10 cm) long; whereas, Ligustrum lucidum leaves are four to six inches (10 to 15 cm) long. If you already have this plant in your landscape removal is difficult. Mature Height/Spread: This semi-evergreen shrub grows rapidly to 15 feet, has dark green, 2½-inch leaves and dull white, heavy scented flowers.

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