It is perennial, and leaves can keep green all year round. It is generally used to grow in gardens, southwest and South China. It originated in America, and can be used to do viewing plants, and can also be used to treat the body. It can treat coughing and asthma, meridian problems, etc. It tastes sweet, a little spicy, and leaves contain a substance called saponin.
1. The common diseases are leaf spot, and brown spots grow on the leaves; anthrax mainly erodes the leaves to make them pathological changes, showing the spots, the color will gradually become darker, the range will slowly become larger, and finally the whole leaf will be eroded, will rot. It also has a kind of disease is often got, that is grey mould.
2. Prevention and control: it will suffer from the erosion of diseases mainly because the environment is too poor and the owner has no intention. If the air is too hot and humid, the ventilation is not good, or the amount of nitrogen fertilizer used is too much, it will easily get sick, so usually we should do a good job in prevention.
When it is very hot in summer, it should be ventilated and fertilized reasonably to ensure that it has enough elements, especially trace elements, for its growth. If you have already got sick, you should remove the diseased leaves to avoid infection everywhere, and then use a little Bordeaux, etc. according to the dosage in the instructions, spray it once a week, the best way is to use several drugs alternately, so as to avoid the emergence of drug resistance.
The most common insects are scale insects and mealy scale insects. If you find any insects on its leaves, you can remove them manually, clamp them off with tweezers, and spray some medicine on the leaves. If insects are found in the soil, they need to be replaced with pots and soil in a timely manner, their whole body needs to be disinfected, and their rotten roots need to be pruned. Finally, put it in a basin. Before that, do a good job of disinfection. There should be no eggs of insects in the soil, and fresh soil should be used. If you want to take medicine, you can use dichlorvos. Pay attention to ventilate it in your daily care.
