Propagation and Pest Control and cultivation techniques of Chamaecarpa paniculata

Propagation and Pest Control and cultivation techniques of Chamaecarpa paniculata

1 characteristics of growth habits

Goose palm wood likes to be wet and afraid of dry, avoid strong light, and the suitable temperature for growth is 16 ~ 27 ℃. Under the condition of high air humidity and sufficient soil moisture, the stems and leaves grow luxuriantly. The growing soil should be sandy loam with fertile, loose and well-drained soil.

(2) ornamental value of garden

Goose palm firewood leaf shape is full, evergreen all the year round, is a green plant with high ornamental value, suitable for hotels, museums and other places, used to decorate rooms, beautify halls and public communication places, showing a natural and harmonious green environment; it can also be used to decorate the family living room, study and bedroom, increase the natural scenery and interest, and benefit physical and mental health. In addition, the leaves of goose palm wood have a strong ability to absorb nicotine and other toxic gases, so they are especially suitable for display at home to purify the air.

3Propagation and cultivation mode

There are two breeding methods: professional reproduction and family reproduction [Jishan Huayao].

3.1 cutting and sowing propagation are commonly used in professional reproduction. Before breeding, the soil should be deeply mixed with 50% fine sand, removed sundries, raked flat, disinfected the soil with carbofuran, killed underground pests, made the land into a seedbed 20 cm high, gently compacted and scraped flat, and built a shading scaffolding on the border surface, which exceeded the height of the cuttings by 10 cm.

3.1.1 Cuttage propagation can be divided into two ways: branch cutting and air cutting. The branches were planted from April to September. The annual apical branches were cut with a length of 8 ~ 10 cm. The lower leaves were removed and inserted into the sand bed to keep moist and kept at about 25 ℃ at room temperature. In the daily greening production, the cuttings are usually prepared before and after the Spring Festival, and the cuttings are usually cut after flowering, because the cuttings accumulate more nutrients at this time, which can improve the survival rate of cuttings and take root 30 ~ 40 days after cutting.

Air insertion is to spread the cuttings on the seedbed and warm them up by spray to create a high-temperature and humid environment to promote cuttings to heal and take root, which can shorten the seedling time. The general temperature of the fog room is kept at 25 ~ 30 ℃, and the air relative humidity is above 90%. When the temperature is too high in summer, it is necessary to use Reed curtain to shade and cool down. Because the temperature and humidity can be artificially controlled, this method of cutting can be carried out all the year round without the restriction of external conditions.

3.1.2 Indoor pot sowing was used for sowing and propagation for 4-5 months, and the optimum temperature for germination was 20 ~ 25 ℃. The basin soil was mostly made of peat soil, rotten leaf soil, coarse sand and perlite to keep the basin soil moist and germinate 15 ~ 20 days after sowing. When the seedling height is 5 ~ 8 cm, it is moved to a basin of 4 cm, and it can be planted in the next year.

3.2 the time for family propagation and cutting should be in late spring and early summer. Usually, 6 ~ 8 cm of annual branches were cut from the growing mother plant as cuttings, the inserted leaves were removed, and the cuttings were cut in a 15 ~ 20 cm plastic flowerpot based on perlite soaked in advance. After planting 3 ~ 5 plants in each basin, keep the soil moist, spray water when the perlite is slightly dry, spray the base and leaf surface, and strengthen the sunshine time, it can take root for about 45 days.

4 growth, maintenance and management

4.1 when the new plant grows to a certain size after rooting, it needs to be transplanted into the pot, and a suitable flowerpot should be selected according to the plant size before going up the pot. when going up the pot, cover the drainage hole at the bottom of the pot with broken tiles, then fill the coarse-grained culture soil to facilitate drainage, put a small amount of soil base fertilizer in the flowerpot, and then cover the culture soil, plant the seedlings in the center of the pot, lift the flowerpot, and pier it on the ground. Remember that you can't press it with your hands. So as not to hurt the young roots.

4.2 watering goose palm wood grows well in the environment of high air humidity and sufficient soil moisture. Summer needs more water, watering once a day to keep the basin soil moist, watering every three or four days in spring and autumn. Under the condition of low temperature in winter, we should properly control the water and master the principle of not watering when tapping and watering when it is crisp.

4.3 Fertilizer young plants should be irrigated with nutrient solution after rooting, 100 mL once a week in the basin, and once a week during summer growth. Granular fertilizer of the same amount of nitrogen, phosphorus and potassium can be used to loosen the soil, or 20% cake fertilizer can be applied twice a month from May to September. After fertilization, the leaves of goose palm wood are thick and green, with good appearance and strong disease resistance [Jishan Huayao].

4.4 sunshade goose palm wood likes the warm and humid environment and avoids the exposure of the scorching sun. In order to ensure the appearance, 70% sunshade net is needed in summer.

4.5 pruning in the growing period of shaping and pruning is carried out in spring, summer and autumn, with a small amount of pruning, only excess branches or residual leaves are trimmed, without affecting ornamental; dormant pruning is carried out from late autumn to the next spring before germination, one is for cutting seedlings, and the other is to stimulate branches during pruning to promote shoot germination.

4.6 the main diseases of pest control are leaf spot and anthracnose, which mainly damage leaves and stems, and branches die when they are serious. The initial stage of the disease can be controlled with 50% benzoate wettable powder 1000 times, the growing period can be controlled with 50% carbendazim wettable powder 500 ~ 600 times, once every 7 days, three or four times in a row. In addition, in the family maintenance, it is necessary to clean up the dead leaves, rotten leaves and diseased leaves in the basin in time to keep the ventilation and drainage in the basin unobstructed, so as to avoid the disease infecting good plants and causing the whole basin to die.

The main pests are scale insects. The nymphs can be sprayed with 500 ~ 800 times of 20% omethoate EC during the nymph stage and 800 ~ 1000 times of 50% malathion during the growing period. Family prevention and treatment, you can first wipe with a towel or brush its roots with a soft brush to break the skin, and then use medicine to kill.