Reasons for the Yellowing of巴西木 and Selection Criteria
The editor answers related topics about 巴西木 in the flower clinic, including the reasons for the yellowing of 巴西木 and the selection criteria. Next, the editor will introduce to netizens.
1. Waterlogging: Overwatering, with water accumulating in the tray, can cause the plant roots to lack oxygen and rot, leading to leaf yellowing. The solution is to remove the tray, water less frequently, and preferably change the soil.
2. Pest Infestation: The symptoms you described may be caused by red spiders or thrips (not scale insects). Use螨光1:1200 times liquid (cypermethrin can also be used), twice to three times a week ( spraing in the middle of the day in winter), for two to three weeks in a row.
3. Temperature: Do you have heating at home? Both excessive heating and no heating can affect the growth of tropical plants like 巴西木 (I guess your situation is most likely this). If the heating is too high, the indoor temperature and evaporation rate will also be higher, so you should increase the number of times you spray water on the leaves every day to maintain plant moisture. If the heating is not on, the indoor temperature will be lower (like in Chongqing, we don't need to turn on the heating in winter), and the plant leaves will rot and yellow if they freeze. The solution is to wrap the entire 巴西木 plant in plastic film or use a large plastic bag to cover it and then move it to a warm, sheltered place inside (even a bathroom is fine, but be sure to maintain moisture), and move it out again in March next year.
In the end, no matter which symptom your 巴西木 has, you must prune the yellow leaves. Remember to cut the incision into | or / shapes to reduce the wound area and spray多菌灵1:1000 times liquid to prevent infection.
When buying 巴西木 at the market, first check if the trunk has any injuries or damage, and then gently press the bark with your hand. The bark with pest infestation will be softer. Then gently shake the trunk; if the trunk is not very loose, it indicates that a considerable root system has developed, and only such 巴西木 is more likely to survive. Otherwise, even if the leaves look beautiful, they are in a state of false vitality. Finally, check if the leaves are flat and smooth. The leaves of 巴西木 should be clear and bright, with the leaf buds basically not loose and the leaf heart not rotting.
The above content about the reasons for the yellowing of 巴西木 and selection criteria is complete and hopes to help you. Also, we hope that everyone will come to see more green plant and flower experience and knowledge!