Control of diseases and insect pests of fine-leaf cherry
1. Powdery mildew
The disease mainly harms the leaves of flowers, and sometimes stems and petioles are also damaged. At the beginning of the disease, white spots appear on the leaf surface, and its ability to spread is so strong that it can connect all the spots in a very short time. Without treatment for a long time, the leaves will slowly turn yellow and wither. This disease is easy to occur when the air circulation is not good, and the environment is too humid and the temperature is too high.
Prevention and treatment: after the occurrence, the seriously diseased branches and leaves can be pruned off first, and at the same time, drugs should be sprayed to increase the application of phosphorus and potash fertilizer; after winter, all the diseased branches and leaves can be cut off and cleaned up. When daily maintenance, be sure to choose a place with good air circulation for display, and fans can be used to increase ventilation in summer.
2. Grey mold
The disease will mainly occur in the flowers, the initial flowers will have small spots, and then slowly spread, causing the whole flower to change color and fester; its leaves are also damaged, just like the flowers. The disease is also easy to occur in an overly humid environment, and the disease can be latent in winter and secondary to the following year.
Prevention and treatment: at the initial stage of the disease, the diseased flowers and leaves should be cut off and destroyed, and then drugs should be used to control the humidity around them; daily watering should be carried out in the morning as far as possible.
3. Black-horned thrips
This pest survives mainly by sucking plant juice, causing flowers to wither and fall ahead of time.
Prevention and treatment: spray with drugs
- Prev
What about the rotten roots of the happiness tree?
Did your friends encounter the rotten roots of the happiness tree when they were raising it? What should we do at this time? First of all, the plants should be dug out of the soil, washed clean, then cut off the rotten roots, then soaked in fungicides, and then dried in the shade; during this period, the pot soil needs to be changed again, and it is best to choose the soil with good air permeability and good drainage for replanting.
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What if the golden diamond is watered too much?
If it is watered too much, its leaves will probably turn yellow and its roots will rot, which should be solved according to the specific situation. If you accidentally pour too much water on one occasion, you can raise the bottom of the basin, empty the water, add some dry soil, and add some hydrogen peroxide; if you usually pour a lot of water, you can take it out with the soil, put it in a cool and ventilated area, blow the soil dry, and then put it back into the basin.
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