What are the breeding methods and matters needing attention of evergreen trees and rubber trees? Is it poisonous? Is it suitable for indoor farming?

Rubber tree is the evergreen tree of Moraceae, alias: rubber tree, Brazilian rubber, Indian rubber tree, Indian banyan big leaf green, red Burmese tree, red mouth rubber tree, suitable for indoor beautification layout, often used to beautify the living room, study, also suitable for layout on both sides of the lobby of large buildings and the center of the lobby, appear magnificent, so how to raise rubber trees? What are the breeding methods and matters needing attention?

Rubber tree alias: rubber tree, Brazilian rubber, is the evergreen tree of the genus Ficus of Moraceae, the leaves are thick and broad, the color is dark green, the terminal bud is bright red, and the stipules droop like red tassel after cracking. The trunk of the rubber tree is obvious, less branched and has air roots. Simple leaves alternate, leaves long oval, thick leathery, bright green, lateral veins many and parallel, young leaves red, petiole stout; rubber tree is a famous potted foliage plant with high ornamental value.

The culture method of rubber tree:

The best propagation time: rubber tree is the best to propagate in spring and summer.

The best growth soil: the cultivation of rubber trees should use loose, water-permeable rotten-leaf soil. The usual ratio is garden soil: rotten soil: sand at 2:2:1. It is best to place moss with the same size as the basin above the bonsai, which is beautiful on the one hand and plays a good role in drainage and ventilation on the other.

Growth humidity requirements: when you feel the basin soil with your hands, you should adopt the principle of "dry and wet". Don't water it often, it must be thoroughly watered. Too much watering will cause the root system to rot and cause its leaves to fall. In the middle of summer, water can be sprayed on the leaves during the dry period to keep the leaves moist. Watering should be reduced in autumn and winter.

The optimum growth temperature: the optimum temperature of rubber tree is 20-25 ℃, it is resistant to high temperature, and it can grow well when the temperature is above 30 ℃. The rubber tree is not cold-resistant and the safe overwintering temperature is 5 ℃. The cold tolerance of variegated leaf varieties is slightly poor, and the overwintering temperature is best maintained above 8 ℃. When the temperature is low, a large number of fallen leaves will be produced.

The best growth light: rubber trees like bright scattered light and have a certain ability to withstand shade. Can not bear the exposure of strong sunlight, when the light is too strong, it will burn the leaves and appear yellowing and scorched leaves. Should not be too overcast, otherwise it will cause a large number of fallen leaves and dilute the beautiful patches of variegated varieties. From May to September, shade should be provided, or the plant should be placed in a place with sufficient scattered light. The rest of the time should be given plenty of sunshine.

Points for attention in culturing rubber trees:

Apply fertilizer: the rubber tree grows rapidly and should be supplied with nutrients in time to make the plant grow vigorously. Nitrogen-based fertilizer should be applied 2-3 times a month. Because of the slow growth, the species with colored markings can reduce the number of fertilization and increase the application of potash fertilizer to make the speckle color on the leaf surface bright. If excessive or simple application of nitrogen fertilizer, the color of the markings will become lighter, or even disappear. In September, the application of nitrogen fertilizer should be stopped and only phosphorus and potassium fertilizer should be applied to improve the cold resistance of the plant. Plant dormancy in winter, fertilizer should be stopped.

Watering essentials: rubber trees like the moist soil environment, during the growth period should fully supply water, keep the basin soil moist. Watering needs to be controlled in winter. when the basin soil is too wet at low temperature, it will easily lead to root rot.

Main points of propagation: rubber trees are commonly used for cutting propagation. It is best to carry out in spring and summer, choose the branches of the upper part of the plant, which are 20 cm long, take root 30 days after cutting, and pot in 50 days. If the cuttings are not properly watered in summer, the cuttings are perishable. When cutting, cut off the one-and-a-half-lignified branches, cut off the young part of the apex, and select the section as the cuttings with the highest survival rate. The cuttings are 2-3 nodes long, keep the upper leaf, cut off half of the leaves, or roll up the leaves with string to facilitate cutting and reduce water transpiration. When cutting, the upper and lower incisions of cuttings are sealed with cement to prevent excessive juice from flowing out and affect survival, and then the cuttings are inserted into plain sand. Under the condition of air temperature above 20C, about 40-50 days after cutting can take root.

In addition to the above-mentioned propagation with cuttings, it can also be propagated by single bud cutting, high branch pressing or water cutting.

Pruning essentials: when the rubber tree plant grows to 1 meter high, it needs to be topped off to promote branching and keep the tree shape graceful. When pruning in spring, remove the bifurcated branches, introverted branches, withered branches and weak branches inside the crown, and truncate the branches protruding from the crown, so as to make the interior of the plant ventilated and light permeable and keep the tree shape round. If the crown is too large, the outer branches can be truncated as a whole. Dense branches and short truncated branches should be removed at any time during growth.

Pot soil replacement: after the rubber tree seedlings are potted, the pot must be changed every spring, and the adult plant can change the pot every 2-3 years to increase the fertile soil.

Pest control: rubber trees are easy to suffer from anthracnose, and its pathogen is Microsporum. The disease mainly occurs in the summer high temperature season, and the main affected part is the leaf. Its symptom is that there are round or oval gray spots on both sides of the leaf vein, and in severe cases, the disease spot is connected and extends to the whole leaf.

Control methods: combined with pruning, remove diseased branches, diseased leaves and withered shoots, and reduce pathogens. At the initial stage of the disease, 50% carbendazim 1000 times or 70% methyl topiramate 1200 times solution can be sprayed.

Are rubber trees poisonous? Is it suitable for indoor farming?

It can be said that the advantages of raising rubber trees at home outweigh the disadvantages, and the toxicity of rubber trees is mainly reflected in its sap. Under normal circumstances, the phenomenon of poisoning will not occur if you do not eat rubber trees, and the plants will not emit toxic gases, and they can beautify the environment, absorb harmful gases such as CO, CO2 and hydrogen fluoride in the air, and can effectively purify the air.

Especially in newly renovated houses, raising rubber trees can effectively absorb volatile formaldehyde. Such as newly bought furniture. Raising rubber trees in unventilated areas can effectively improve air quality, because rubber trees can regulate air humidity and oxygen content, because of their broad leaves and exuberant photosynthesis in sunny places.

Rubber trees have strong plasticity, and proper pruning can create plants with high appreciation value, so how can rubber trees be pruned to look better?

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