Cultivation techniques of Populus tomentosa
Populus tomentosa, also known as Populus tomentosa, has numerous branches and leaves. Leaves are whorled with three leaves, which are large, medium and small, all of which are long oval, leathery, thick and shiny. Populus tomentosa is an evergreen shrub or tree, belonging to 6 genera and 30 species of Populus tomentosa. It has strong and fine wood and produces temperate and subtropical mountains of Jiangsu, Zhejiang and Anhui in China. Summer boxwood branches with small yellowish flowers, apetalous flowers with a light pink fragrance, flowers in clusters at the top, showing umbels, bearing fruit after anthesis, one seed per fruit. Reproduction is mostly seed sowing, because it is difficult to grow up, so make more bonsai. Populus tomentosa is warm and humid, semi-overcast, cold-resistant, barren and pruning-resistant. It has few diseases and insect pests.
What people like is the ancient pile with the epitome of wilderness ancient wood, which is mostly strange and simple. The author bought several old boxwood piles in the market 20 years ago, pruned them, retained a small number of branches and leaves, and planted them in a slightly larger mud basin. Then place the half-shade in the basin and cover the plants in the pot with a net of soil. Spray twice a day with a kettle at 9-11:00 in the morning, the grass is wet and decreases gradually after autumn. Do not have too much water, or it will cause waterlogging and rotting roots. Take good care of it and be negligent. Sprouting and taking root in the mildew and rain period of that year, it can be seen that the buds and leaves thrive. Otherwise, all previous efforts will be wasted. Can not be modeled until three or five years after survival, and it is expected that the old pile bonsai will be treated alone.
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Control techniques of yellow poplar inchworm
First, the harm: silk cotton, yellow poplar, Wei spear, elm, poplar, willow and so on. The larvae gather the leaves to feed, eat up the leaves and eat the skin of the twigs, resulting in the death of the whole plant. Second, the law of occurrence: there are 3 generations of 2murs a year, overwintering as pupae. Adults inhabit hidden places of branches and leaves during the day, move at night, mate, and lay eggs on the back of the leaves, arranged in double rows or blocks. There are dozens to more than a hundred eggs. Most of the eggs hatched at 5: 00 in the morning, the leaves were harmed, the skins were eaten, and the mature larvae fell into the soil and pupated.
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The method of making bonsai of guazi and boxwood
Guazihuang poplar, also known as Buxus tomentosa, thousand-year-old dwarf, etc., is an evergreen shrub or small tree of the family Populus, which is native to the Yangtze River Basin and the south of central China. Sex like warm, semi-overcast, humid climate, drought resistance, cold resistance, pruning resistance, is a shallow root tree species, slow growth, long life, is an excellent wood for bonsai production. Bonsai materials one is to use sowing or cutting propagation, although a large number of seedlings can be obtained, but not only for a long time, but also it is difficult to get roots and claws, vigorous Gucci good material. The second is to dig up the old pile, and the high-quality material depends on more.
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