Cobra is an insect-eating plant and a genus of Celastraceae. Mainly distributed in northern California and Oregon. Cobra grass is a well-known insect-eating plant species, named after it looks like a cobra, and it is the collection object of many players. The left and right sides of their bottle caps are glued together to form a spherical top, which makes the whole insect trap bottle almost sealed. There is a concave gap between the spherical cap and the bottle body. And there are many white spots lacking chlorophyll on the bottle cap and bottle body, through which sunlight can enter the insect catching bottle. Insects can enter the trap bottle through the slit. Once they enter, they will be confused by these white spots, mistakenly think that white spots are exits, get lost in insect traps, and finally fall into digestive juice and be digested. Peat, sand, moss, peat, perlite, coconut shell, etc. Water needs to be watered with soft water, such as rainwater, distilled water and reverse osmosis deionized water. Tap water in some areas contains a lot of minerals. These calcium salts will deposit and kill plants. This is because most insect-eating plants have adapted to poor acidic soil, so they are extremely calcium-averse plants, so they are very sensitive to nutrients in the soil. The temperature is cold and afraid of heat, especially the roots are cold, and the temperature difference between day and night is large; It can survive at-10 to 30 degrees, and 15 to 27 degrees is the most suitable temperature for its growth. I like strong light. I can accept sunshine when the temperature is not too high. A red net will be exposed at the top of the plant, which is very beautiful. Pests and diseases are easily attacked by aphids or mealybugs. Smaller hazards should be removed manually, while larger hazards should be treated with pesticides as appropriate. Isopropanol is an effective insecticide to control scale insects. Diazine is also a broad-spectrum insecticide, which can be tolerated by most insect-eating plants. Malathion and acephate are also suitable for insect-eating plants. Although pests are a problem, the biggest problem is gray mold. It develops in a warm and humid environment and becomes a serious problem in winter. Put it in a cool and ventilated place and remove the diseased branches in time, which can inhibit the development of gray mold to some extent. If it fails, bactericide should be used as appropriate.