1. Reasonable exposure to lightReason: Irises are suitable for growing in a semi-shaded environment and cannot withstand strong sunlight. Once exposed to strong sunlight, the leaves may be burned, causing them to turn yellow and become dehydrated, and then fall off. Solution: When growing irises, you must pay attention to the light. Move the irises to a cool place for maintenance when exposed to strong light. Provide appropriate shade and spray water on the plants to increase the humidity in the air and promote plant recovery. 2. Natural MetabolismReason: Iris has a natural growth cycle. After a period of growth cycle, the leaves will naturally turn yellow and fall off. Solution: This is a normal phenomenon and is part of natural metabolism. In this case, no further treatment is required, just continue maintenance. 3. Adjust wateringReason: During the maintenance process, watering is also very critical. Too little watering will lead to drought and water shortage, causing the leaves to turn yellow and fall off. Too much watering will cause water accumulation at the roots, leading to root rot and leaf drop. Solution: Iris does not need too much water, nor does it like a humid growing environment, but it cannot lack water, so water it according to its growth needs, but not excessively. 4. Prevention and control of pests and diseasesReason: Poor maintenance may breed pests and diseases, which will cause problems on the leaves, causing yellowing and falling. Solution: Pay attention to maintenance methods, ensure good ventilation, and treat diseases and pests in a timely manner. |
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