Reasons why lilac leaves turn yellow. Prevention and control measures for yellowing lilac leaves. Lilac flowers have always been loved by people because of their unique aroma and beautiful flowers. During the maintenance process, many flower friends will find that lilac leaves begin to turn yellow, which not only affects the appearance, but may also indicate problems with plant health. Why do lilac leaves turn yellow? This article will provide you with a detailed analysis of this phenomenon and provide corresponding prevention and control measures. Reasons why lilac leaves turn yellow 1. Improper water management Lilac flowers prefer a humid environment, but it is not advisable to accumulate water. If you water too much, it may easily lead to hypoxia in the roots, which in turn causes the leaves to turn yellow. On the contrary, too little water will cause the soil to dry, which will also turn the leaves yellow.
2. Insufficient light, lilac flowers need enough sunshine. If they are in a dark environment for a long time, the leaves cannot undergo photosynthesis, which will cause the leaves to turn yellow.
3. Soil problems Soil hardening, excessive acidity or alkalinity, insufficient nutrition, etc. may cause lilac leaves to turn yellow.
4. Infestation by pests and diseases. Clove flowers are susceptible to pests such as aphids and red spiders. Some fungal diseases may also cause leaves to turn yellow.
5. Improper fertilizer application Excessive application of nitrogen fertilizer or improper fertilization will cause the lilac leaves to turn yellow. Prevention and control measures for yellowing of lilac leaves 1. Appropriate amount of watering According to the growth habits of lilac flowers, water at the right time to keep the soil moist but no water accumulation. During the high temperature season in summer, the number of watering can be appropriately reduced.
2. Provide sufficient light and place the lilac flowers in a sunny place to ensure that they can receive 4-6 hours of direct sunlight every day.
3. Improve the soil and replace the soil regularly to ensure that the soil is loose, breathable, and well drained. Appropriate amounts of organic fertilizers, such as decomposed chicken manure, cow dung, etc., can be applied to provide sufficient nutrition for lilac flowers.
4. Regularly inspect lilac flowers to prevent and control pests and diseases, and take timely measures when pests and diseases are discovered, such as using pesticides, fungicides, etc. to control them.
5. Reasonable fertilization According to the growth stage and needs of lilac flowers, reasonably apply fertilizers. During the vigorous growth period, appropriate amounts of nitrogen fertilizer can be applied; during the flowering period, appropriate amounts of phosphorus and potassium fertilizer can be applied.
There are many reasons why lilac leaves turn yellow, but as long as you understand their growth habits and take corresponding prevention and control measures, you can effectively solve this problem. I hope this article can help you maintain lilac flowers.