Lagerstroemia bonsai conservation management
In view of the bonsai scene, the crape myrtle has strong vitality, does not select soil, is resistant to pruning, is easy to breed, has a high survival rate, and has a long flowering period and blossoms and is popular with people. As the crape myrtle has many advantages and is easy to model, the crape myrtle system is loved by bonsai enthusiasts.
As far as the point of view is concerned, it is difficult to find a large pile of wild crape myrtle. In order to continue to develop the advantages of this tree species, it is possible to extensively use all types of medium and small crape myrtle piles that have been propagated to create bonsai ideas.
In the basin, you can enjoy the beautiful scenery and the outside building spirit."
Watering: Lagerstroemia hi wet and afraid of scabies, watering should be appropriate, too much water, resulting in water, will make the crape myrtle rot root and die, but do not add water in time, due to lack of water and fall, fruit growth, or to suspend growth, or Local dry sticking, and even death, especially in flowering pots and soil can not be too dry, should be kept moist.
In June, when the buds began to control water, they saw that the shoots were drooping and the leaves were slightly curled. Watering was needed in a timely manner. We insisted on seeing and seeing wet, watering was not dry, and water was poured. During the high temperature season, the water in the pots evaporates quickly. It is advisable to pour enough water once in the morning and in the evening and spray water on the stumps to meet the needs of water evaporation and growth. In the spring, autumn and winter, the basin should be kept moist and watered according to the conditions of basin soil.
Fertilization: Lagerstroemia bonsai pay attention to the application of nitrogen, phosphorus and potassium fertilizers. During the growing season, a decomposed liquid fertilizer is applied every 15 to 20 days. After each pruning or picking, a nitrogen-based fertilizer should be applied. 0.2% of the urea solution can be added to the fertilizer to promote sprouting of new shoots and new shoots. Growth, flower bud differentiation period to the start of the period of application of phosphorus and potassium based fertilizer, to provide timely production of flower buds and flowering nutrients needed.
When the crape myrtle germinated (including every time after pruning and picking the leaves and germinating), a concentration of 0.1% urea was sprayed, and 0.2% potassium monohydrogen phosphate was sprayed once before flowering. Fertigation is the key to making Lagerstroemia sinensis more prolific and more flowering. It is also the key of Lagerstroemia spectabilis to make lagerstroemia more leaves and leaves. Fertilizer is mainly decomposed human or animal manure or cake fertilizer, supplemented by chemical fertilizer.
Increase the light: Lagerstroemia bonsai should be placed in a sunny, warm and humid and ventilated place, it is best to put on the full sun balcony. Pay attention to the little lagerstroemia bonsai basin, large volts days from 11 am to 3 pm should be appropriate shading, to prevent Pentu dry, dry or shade plants to prevent Pentu dry, dry or dead plants. During the winter in winter, it should be sun-dried for 3 to 4 hours, suitable for noon, and 2 to 4 times per week (depending on the temperature and the sunshine intensity)
Turning basins: Lagerstroemia piles are changed once every 1 to 2 years. If there is less potted soil or small and miniature bonsai, change the soil once a year before germination in the spring.
When we turn the pots, first remove the crape myrtle pile head from the basin, then remove the old soil, cut off the rot, roots and some old roots, long roots, too dense roots, etc., and then replant the pile heads according to the original posture. In addition, the cultivation of soil, compaction, pouring enough water.
Soils with rich organic matter, good drainage and breathability, and sufficient fertility are used to cultivate the soil, so as to ensure its luxuriant flowering and leafy growth, and to increase the ornamental value. When the pot is turned, it is possible to leave thick, tortuous and graceful crape myrtle roots as the ornamental surface and make it form a hanging surface. Roots claw-like.
Prepare the exposed roots temporarily covered with a damp cloth or moss, and then spray water on the cloth or moss to keep the cloth or moss moist, and gradually remove the cloth or moss after normal growth. After removing the cloth or the moss, the water should be sprayed on bare roots within half a month, and it will soon be able to form.
Cold: Lagerstroemia bonsai cold resistance is not strong, easy to freeze dry, severe freezing will die, so winter should be displaced indoor winter, room temperature to maintain above 7 °C, below 7 °C, should use plastic bags, insulation, hot water Heating, fire heating and other methods. And should pay attention to ventilation, indoor temperature is too high, you can open the doors and windows to reduce drowning, otherwise affect their normal sleep, and even rot. When the sun is strong outdoors and the temperature is high, the place where the sun shines should be displaced at noon, and it should be moved into the room in the afternoon to make it safe for winter.
Pest Control
1 Disease prevention and treatment: The common diseases of the crape myrtle are: coal pollution, and can be used Baume 0.3 ~ 0.5 degrees lime sulfur spray; spot disease, 70% thiophanate-methyl can be sprayed 700 ~ 800 times; root rot, Can be used 30% copper succinate suspension 200 times liquid Irrigation; powdery mildew can be sprayed with sulfur powder control. The above agent sprayed once every 5 to 7 days, continuous spray 2 to 3 times.
2 Insect pest control: The main insect pests of the crape myrtle are: scale insects, can be sprayed with 40 pieces of Leko EC 1000 times, or poisoned with 3% carbofuran particles; maggots and whitefly, 50 to 60 times more available tobacco lime water Liquid spray to kill, or use 80% of dichlorvos EC 1000 to 1200 times liquid spray; large codling moth, can be sprayed with 25% carbaryl WP 400 times, or with 90% dipterex crystal 1000 times spray
Lagerstroemia is a positive plant, need to have sufficient light, at the same time to implement artificial control methods, if any plants grow too fast, large leaves, flowering can not be synchronized, etc., it is necessary to trim, pick leaves, appropriate water control and spray Chroma prime and so on. As long as the management is effective, the effect of intention will be realized. The top dressing after the top bowl should be dominated by phosphate fertilizers, thin-fertilizers, and about three to four times a month.
Although cultivated soil contains sufficient nutrients, it cannot meet the rapid growth and flowering of crape myrtle. If there are measures that cannot be followed, there will be various kinds of unfavorable situations, such as light color, thin yellow leaves, and short flowering period. At the same time, after each batch of flowers should be cut off in time to remove residual flowers and follow the application of decomposed organic fertilizer, to compensate the nutritional consumption of crape myrtle, to promote its bright colors, flowering, and achieve the desired results.
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