What if the golden diamond leaves have macula?

1. Reason

1. Improper watering

If the new leaves are dark and yellow, look lethargic, and the branches are thin and shrunk, it is that they have been watered too much. If the edges of the leaves turn yellow, the old leaves turn yellow and fall off, and the new leaves are more normal, it is too little watering.

2. Improper lighting

If the edge of the leaf is withered and there are small yellow spots in the sunny part of the leaf, it is caused by the strong sun. If you leave it in a dark area for a long time, it will not get enough sunlight, it will be difficult to grow chlorophyll, and the leaves will turn yellow and fall.

3. Lack of nutrients

If the proportion of fertilizer is much larger than that of water, the flowers will turn yellow, the new leaves will turn yellowish brown, the leaves will be fat but not smooth, and the old leaves will be scorched yellow. If you often forget to add fat, the young leaves will be yellowish green, and the old leaves will change from green to yellow. If there is a lack of nitrogen, the leaves will grow smaller, the lower end will turn yellow, and the whole plant will fade. If the lack of phosphorus, the veins of the leaves at the bottom will turn yellow, if lack of potassium, the edges of the leaves will be brown and easy to fall, if lack of iron, the leaves will grow yellow and dry. In addition, it likes acidic soil, if your home is in the north, the water and soil are alkaline, the leaves will turn yellow, or even fall.

4. Anthrax

If the leaf is eroded by bacteria, it will grow yellow dots, which usually grow at the edge of the leaf.

II. Preventive measures

1. Always spray water on the leaves and around to help increase the surrounding humidity. It is best to keep the temperature at about 20 degrees. In winter, you have to wait until the soil is dry before watering. Hot weather in summer can help keep it moist.

2. Don't put it under the air conditioner, don't let the sun shine on it, and don't put it in a dark area for a long time.

3. If there is too much fertilizer, it should be stopped immediately and most of the fertilizer should be washed away with water. If there is too little fertilizer, the soil will dry and form a lump, and some alum should be added. Normally, we should be diligent in adding light fertilizer and give priority to nitrogen fertilizer. If the soil is alkaline, the rice washing water can be fermented and poured into the soil.

4. if it is a disease and insect pest, it is necessary to remove the diseased leaves and branches from the tree in time, and buy a special medicine, such as Bordeaux liquid, which can be sprayed every seven to ten days for two or three times in a row to prevent it. If it is more serious, it should be sprayed with Shiduqing, and regular spraying of water to clean the leaves can help it prevent insects.