What to do if there is white on the cassia tree
Today's focus is on how to deal with the white on the cassia tree and related topics about the treatment of powdery scale disease in flower cultivation. Below, the editor will provide you with detailed answers.
The white spots densely covering the cassia tree are mostly caused by powdery scale disease. It is necessary to剪掉 the whitened parts promptly, disinfect and sterilize with carbendazim, and spray insecticides on the plant, such as dichlorvos or permethrin, or prepare a mixture of rice wine and water in a 1:2 ratio.
Later on, ensure the soil has sufficient moisture, avoid waterlogging, and water every 2-3 days.
Supplement nitrogen fertilizer when new buds appear, and focus on phosphorus fertilizer before flowering.
Ensure sufficient sunlight every day, with 6-8 hours of exposure being ideal.
I. Treatment Methods
If the cassia tree has white spots densely covering it, it is mostly affected by powdery scale disease. It is necessary to剪除 the whitened branches and leaves promptly. To thoroughly kill the bacteria, use carbendazim to disinfect after pruning, and spray insecticides on the plant. You can use a 25% permethrin powder diluted 2000-3000 times or an 80% dichlorvos diluted 1500 times for spraying. Alternatively, if you do not want to use insecticides, you can prepare your own insecticide by diluting rice wine and water in a 1:2 ratio, mix well and pour it into the soil, applying it every 15 days for 3-4 consecutive times. Or you can soak cotton balls in rice wine and vinegar, then use them to wipe the white parts.
II. How to cultivate cassia for better growth
Water: The cassia tree requires sufficient water during its growing period. If water is lacking, the branches and leaves will wither and turn yellow. Do not water it too much either; if water accumulates in the soil, the roots may rot, which can affect growth and easily cause diseases. Keep the soil moist and water frequently during the vigorous growth season, about every 2-3 days.
Fertilization: When new buds appear on the cassia tree, it is necessary to supplement nitrogen fertilizer to make the branches and leaves grow stronger. Before flowering, focus on phosphorus fertilizer. To help the plant absorb nutrients better, it is necessary to loosen the soil 1-2 days before fertilizing.
Sunlight: During the growing period, the cassia tree needs to ensure sufficient sunlight. It should be exposed to sunlight for 6-8 hours a day. If the sunlight is weak or the exposure time is too short, it will not only affect flowering but also cause the plant to grow excessively and increase the chances of disease. However, the midday sun in summer is very strong, so it is best to provide a semi-shaded environment for the plant at this time.
The above shares the full content on how to deal with the white on the cassia tree and related methods for treating powdery scale disease. I hope it helps you and also hope that everyone will come to see more green plant and flower experience knowledge!