The high connection of big leaf privet and golden leaf privet
Ligustrum lucidum and Ligustrum lucidum both belong to Oleaceae and Ligustrum lucidum. The former is a good green sub-tree, which is often ignored because of its universality. The latter is a color tree species, which has been widely used by people in recent years. Because the golden leaf privet belongs to the shrub class, which limits its practicability. In order to expand the greening function of the two, the author makes a high connection by learning from each other to achieve this goal. The steps are as follows:
Branch grafting or budding can be used in spring (sap has flowed, it is best before sprouting). The large-leaf privet with a breast diameter of 3 cm to 4 cm was used as the rootstock and the golden leaf privet as the scion. First of all, choose the height of the rootstock and the angle of the branches. On the inside of the base of the rootstock branch, use a sharp knife to cut a knife about 2 cm long, the blade just reaching the xylem is the best. The scion can be 3 cm to 5 cm long and cut into a positive wedge of about 2 cm with a knife. The blade of the rootstock is slightly longer than that of the scion. Then, quickly and accurately align the cambium of the two. If the blade of the rootstock is too wide, two scions can be juxtaposed. Then, use a moderately thick and flexible plastic strip to wrap up from the lower part of the edge of the rootstock. You can use more force when wrapping the joint of the two, and when you get to the upper part of the scion without a knife edge, you can wrap it around the rootstock. At this time, must wrap the scion tightly, otherwise the scion is easy to air-dry or not completely healed. After grafting, some branches and leaves of the rootstock can be thinned properly, and this work can also be done before grafting.
Spring bud grafting, use a knife to cut a 2 cm long knife in the appropriate position of the rootstock, take a certain amount of xylem (not too thick) when cutting the scion, then aim at the cambium of the two, and wrap it up from the bottom with a plastic strip. When you get to the bud point, you can use a little more effort so as not to hurt the bud. Whether the bud is dewy or not depends on the weather.
You can know whether you will survive or not in a week or so. If the failure can be repeated, if the grafting is successful, you can take off the plastic strip and then wrap it gently. The branch grafting can not wrap around the upper part, and the bud grafting can reveal the bud point to facilitate germination. Before the scion sprouts, do not cut off all the branches and leaves of the rootstock, otherwise it will cause the rootstock to "sprout" or even die. At this time, the branches and leaves of the rootstock can be left with 1 stroke and 3 strong points to facilitate the crown and root system to maintain physiological balance. When the buds of the scion grow to 1 cm to 2 cm, all the branches of the rootstock can be cut off and the plastic strips can be removed. In the future management, the main thing is to remove the sprouts from the rootstocks. Some of the sprouts on the stem of the rootstock can be left behind to control its growth and lay the foundation for future modeling. The sprouts around the roots and scions should be removed so as not to compete for nutrition and disturb the tree.
The affinity of the two is strong, the knife edge heals well, and the grafted seedlings grow vigorously. If the water and fertilizer keep up and manage properly, the crown diameter in two years can reach about 2 meters, and the golden branches will droop naturally. The branches germinated from the middle and lower parts of the rootstock can be artificially shaped, or flat, or spherical.
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Diseases and pests of Ligustrum lucidum
Content: we have a large golden leaf privet every high temperature, high humidity season into a piece of fallen leaves, until withered yellow, ask what is the reason, how to prevent? Reply: may be caused by fungi "golden privet leaf spot disease" plum rain season will be everywhere "chaos", the onset of the golden privet will soon lose its leaves. It is generally caused by the overdense planting density, which has appeared in large numbers in Shanghai in recent years. Prevention and treatment: spraying germicidal pesticides.
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Control methods of Leaf spot of "Golden Leaf Privet"
There are nearly round brown disease spots on the diseased leaves, often with wheel lines, and the periphery of the edge is often yellow. The initial lesion is small, after expansion, the diameter of the spot is more than 1 cm, and sometimes the spot fuses into an irregular shape. The diseased leaves are very easy to fall off from the branches, resulting in the phenomenon of baldness in the branches of Ligustrum lucidum in the seriously affected area. The first occurrence period is in the first ten days of April, and the peak periods are from July to August and October. From mid-May to mid-August and from mid-September to early November, 47% Meike 3000 × 4000 liquid and 1% bacterioridine 2 are used.
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