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Planting Methods and Care Tips for Ligustrum quihoui
Scientific name: Ligustrum quihoui Carr. English name: Purpus Privet. Family: Oleaceae. Shrub, 2-3 m tall. Branchlets densely covered with fine soft hairs. Leaves thinly leathery, elliptic or obovate-oblong, 1.5-5 cm long, 0.8-1.5 cm wide, hairless, apex blunt, base cuneate; petiole with short pubescence. Panicle 7-22 cm long, with fine soft hairs; flowers white, fragrant, sessile; corolla tube and lobes equal in length, anthers slightly exserted beyond the corolla
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What to Do About Root Rot in Golden Privet? A Detailed Guide to Effective Prevention and Control Methods
To prevent root rot, pay attention to the following points: 1. Do a good job of disinfecting the seedbed. Avoid using land that has previously been sown or used for cuttings of similar seedlings as a seedbed. 2. Do a good job of disinfecting the cuttings. After cuttings are inserted, the entire seedbed should be disinfected; generally, the branches can be soaked directly in thiophanate or carbendazim solution, which gives a clear disinfection effect. 3. Pay attention to rooting time. Golden privet is a plant of the Oleaceae family that roots very easily; its cutting method can follow that used for golden-leaf privet, with attention to management and timely spraying of medicine to prevent disease. 4. Open
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Symptoms and Control Methods of Privet Leaf Rust
Privet, also known as wintergreen and wax insect tree, is an evergreen small tree native to China and Japan. It likes light and tolerates slight shade, prefers warm and humid conditions, is suitable for slightly alkaline soil, is slightly cold-resistant, and has strong resistance to air pollution. Privet is a commonly used landscaping tree in courtyards and can be used as hedges and courtyard landscaping trees. Symptoms: Round brown spots appear on the surface of infected leaves and gradually become sunken, while the corresponding parts on the back of the leaves bulge. The mesophyll of the diseased area thickens and turns yellow or purplish red, after which many cup-shaped rust spore receptacles grow on the raised spots. Rust spores
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Key Points and Methods of Fertilizing Privet (Ligustrum)
Fertilization should be carried out in late March of the following spring. When fertilizing, scrape away the mounded soil, dig a ring-shaped trench 50 cm away from the trunk, 40 cm deep and 30 cm wide, and then apply farmyard manure. Large-leaf privet (Ligustrum lucidum) has low requirements for fertilizer amount, so it can be applied more or less. After it survives, in May to June each year, fertilizer can be applied twice along with watering, each time applying 50-100 grams of monopotassium phosphate or urea.
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What are the control methods for the Ligustrum looper moth?
The adult Ligustrum looper moth has wing patterns that slightly resemble the woven texture of a basket, with distinctive features, and a wingspan of about 9-10cm, making it a large moth. The larvae are grayish-black, or brightly colored in lighter shades; when young, the 2nd and 3rd body segments each bear two dorsal horns, and when nearly mature, the 2nd and 3rd segments swell and the area around the spiracles is vividly colored. When disturbed, the larvae can produce a cackling sound from their mouths. Adults emerge in June-July. Host plants include Ligustrum lucidum (glossy privet), Ligustrum sinense (Chinese privet), Ligustrum japonicum (Japanese privet), Fraxinus chinensis (Chinese ash), Osmanthus fragrans (sweet osmanthus), and others. Currently it is the period when older larvae are causing damage, and it is commonly seen in our area. Control methods:
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What are the control methods for scale insects on privet hedges?
In recent years, with the widespread use of golden privet (Ligustrum sinense 'Variegatum') and small-leaf privet (Ligustrum quihoui) in urban landscaping, pests and diseases on privet have become a major problem in garden maintenance and management. The scale insect occurring on Ligustrum landscaping plants is mainly the white wax scale (Ericerus pela). It has been reported that comstock mealybug (Pseudococcus comstocki) has occurred on privet hedges in Hebei. The identification characteristics and control measures of the white wax scale are described below: Distribution and damage. The white wax scale Ericerus pela (Chavannes) belongs to the order Homoptera, family Coccidae. It is widely distributed in China. It damages
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Privet Tree Shaping and Pruning Methods and Key Technical Points
1. Transplant pruning: When transplanting in the nursery, the trunk should be cut back by 1/3. Below the cut, only one strong bud should be selected and kept to develop into the trunk extension shoot; the other bud opposite it must be removed. To prevent the formation of competing shoots at the top, the 1st to 2nd pairs of buds below the cut should also be destroyed. 2. Planting pruning: Before planting, cut back the 1-year-old extension shoot of the central trunk of large saplings by 1/3, keep a strong bud at the cut bud, and at the same time remove 1 bud from the first pair of buds below the cut to ensure the apical dominance of the selected bud. To prevent the formation of competing
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What are the propagation techniques for glossy privet? A detailed explanation of the methods
The propagation techniques for glossy privet are: reproduce by seed, or by cuttings. Choose a sowing site that is sheltered from the wind and sunny, with fertile soil, convenient drainage and irrigation, and a thick plough layer, such as loam, sandy loam, or light clay. After applying base fertilizer, plough finely and harrow thoroughly, so that the topsoil is loose and the subsoil is firm, and the land is level. The base fertilizer is mainly manure; applying more helps raise soil temperature, maintain soil moisture, and prompt the seeds to absorb water and sprout early. To prevent underground pests, use 400 to 500 ml of 50% phoxim emulsifiable concentrate (or isofenphos-methyl) per 667 sq m, mix evenly with 3 kg of fine soil, and spread it evenly on the surface before ploughing
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Identification Features and Control Methods of the Privet Looper
Scientific name: Naxa seriaria Motschulsky. Morphological features: The adult has a wingspan of about 40 mm, with a slender body that is yellow-white. The forewings and hindwings are thin, white, and slightly transparent, with two rows of black star-shaped spots along the outer margin, and each wing has a relatively large black spot in the middle. The forewing also has a row of dark brown spots near the basal angle. Newly laid eggs are white, gradually turning orange-red, glossy, and arranged in bead-like strings. The larva is about 30 mm long, dark brown, with indistinct black patterns and spots on its body. Except for the thoracic legs and the prolegs on the eighth and ninth abdominal segments, the prolegs on the other segments are all reduced, and each segment is covered with gray-white hairs. The pupa is yellow-brown with dark brown spots and patterns. Damage situation: This insect mainly damages privet (Ligustrum), water wax (Ligustrum obtusifolium), and osmanthus (Osmanthus fragrans). It is a voracious leaf-eating pest that often gathers in groups and nibbles away the leaves. Especially when the population density is high, it can completely devour the leaves of an entire plant or a whole patch of water wax and privet in a short period, seriously affecting growth and ornamental value. Occurrence pattern: This insect has two generations per year and overwinters as middle-instar larvae on the tree canopy. Pupation begins in mid-May, and adults emerge at the end of May and in early June. Adults mate on silk webs and lay eggs in strings. After the eggs hatch, the larvae spin silk webs on the tree canopy and nibble the leaves until they are eaten up, then spread to neighboring canopies. The second-generation adults appear around August, and the adults are phototactic. Control methods: 1. During the peak emergence period of adults, use lights to trap and kill the adults. 2. The pupae and eggs are all attached to the insect silk webs near the tree canopy, so they can be searched for and removed. 3. In the early stage of larval hatching, spray 1-2 times with insecticides such as dichlorvos, trichlorfon, and omethoate at a 1000-fold dilution. This insect has strong resistance to pesticides, so spraying should be thorough and should be done early; otherwise, the efficacy will be affected.
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What are the control methods for the privet geometrid?
Distribution: distributed in Northeast China, Henan, Jiangsu, Zhejiang; also in Korea, Japan, and the Soviet Union. Damage: it harms water fir, privet, lilac, water wax, and small wax. The larvae spin silk webs and feed inside them. When the population is high, they form large silk webs that cover the entire tree, eating all the leaves, affecting tree growth and even causing the trees to die. Morphological characteristics: [Adult] body length 12-15 mm, wingspan 31-40 mm, body and wings white with a silky luster. The outer margin of the wings has 2 pairs of black dots, the outer row between the veins and the inner row on the veins; the forewing has at the upper end of the discal cell
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