What is the reason why rose leaves curl? What is the reason why rose leaves curl?

1, improper watering. Roses need plenty of water and fertilizer during their growth. If they lack water and fertilizer, their leaves will dehydrate and curl. In addition, excessive watering is also one of the reasons for leaf curl. Too frequent watering can easily lead to root rot and make the rose hair shrink without absorbing nutrients.

2. Lack of fertilizer. When fertilizing roses, we should pay special attention to that, in addition to the daily organic fertilizer, when the soil where roses grow is not applied with ammonia for a long time, the leaves of roses will turn yellow and curl. Therefore, when raising roses, a certain amount of ammonia fertilizer should be applied to the soil at regular intervals.

3, high temperature exposure. Excessive light is also one of the reasons for the atrophy of rose leaves, especially in hot summer. It is necessary to avoid exposing potted roses to the outside. The hot sun will evaporate a lot of water from the rose leaves, which will make the rose leaves shrink due to lack of water.

4. pests and diseases. Common diseases and insect pests of roses include leaf spot caused by fungi, insect pests caused by scale insects and red spiders. Once pests are found on rose plants, they should be killed by spraying pesticides in time. Leaves will wither and fall off if diseases and pests are not treated in time.