Characteristics and cultivation of Ligustrum lucidum
Scientific name LigustrunlucidumAit, alias ash tree, Oleaceae, privet genus. Large evergreen shrubs or trees, with grayish brown bark, smooth and indehiscent. Leaves 8-12 cm long, leathery luster, Lingdong green, is a rare temperate evergreen broad-leaved trees, trunk erect or two or three trunks, branches obliquely spread, into a wide oval round crown, can be planted as a street tree, resistant to pruning, usually used as a hedge. The wood is fine and fine for cabinetwork. The fruit contains starch to make wine, and it is used as a strong agent. Leaves can treat stomatitis and pharyngitis; bark grinding can treat scald; root bubble wine can treat rheumatism. Ligustrum lucidum likes light, warmth, shade tolerance, but not cold. It grows rapidly in slightly acidic soil, and can also grow in neutral and slightly alkaline soil. Strong sprouting ability and wide range of adaptation. It has the function of dust retention and anti-smoke, can absorb sulfur dioxide, adapt to factories, mines and urban greening, and is one of the rare evergreen broad-leaved tree species in the north.
Flowers bisexual, panicles terminal. The flowering period is July and the fruit ripening stage is from October to November. Berries long oval, purplish black, seeds Obovate. After the fruit is ripe, you can cut the ear with high branches, soak the fruit and rub it to remove the pericarp to cool slightly. The thousand seeds of Ligustrum lucidum weigh about 36 grams, 27000 per kilogram, and the germination rate is 50-70%. Seeds can also be stored in low temperature with pulp when stored in low temperature with mixed sand.
Big seedlings should take mud balls and cut off some branches and leaves. The seedlings planted by hedgerows are cut off 15-20 cm from the ground to promote the germination of lateral branches.
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Propagation technique of Ligustrum lucidum
First, improved seed breeding 1. Seed selection: the suitable time for seed collection is from late November to mid-December in North China, and the trees with strong strength, good posture and strong resistance are selected as the mother trees. In the afternoon on a sunny day, select seeds with high maturity, full seeds, disease-free and insect-free seeds, and dry them in a cool and ventilated place to avoid sun exposure. two。 Soil preparation: select 2 parts of fertile sandy loam with pH 6.7 to 7.0, 1 part of high quality peat soil, 1 part of field soil, and then add 1.5 kg of diammonium phosphate per cubic soil.
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Control techniques of diseases and insect pests of Ligustrum lucidum
Ligustrum lucidum has strong adaptability, basically no diseases and insect pests, and scale insects will occur only when the growth is too weak. Control methods: 1. Wipe the overwintering female worms and male pupae on the trunk and branches with grass handles or brushes. 2. In May and June, spray 50% malathion 600x solution, or 25% imidophos 1000ml 1500x solution, or 40% dimethoate EC 1000 times, or 10% Uranus 400x solution to control.
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