What about the curling of rose leaves?

First, infected with powdery mildew

(1) symptoms: if its old leaves are bent and its newborn leaves are bent, it must be infected with this powdery mildew, which is not only a threat to the leaves, but also has an impact on the growth of flowers, so measures must be taken immediately.

(2) method: in the daily maintenance, the diseased branches and leaves should be removed, then put it in the windy area, and give it more fertilizer with phosphorus and potassium to make it more resistant. If the disease is very serious, it needs to be treated with medicine, and if it does not sprout, stone sulfur mixture can be used to kill the bacteria.

Second, infected with diseases and insects

(1) symptom: if the newborn leaf is not only bent, but also has a little big bug on it, then it may have aphids or red spiders. These two kinds of insects will eat up its leaves and have a serious impact on its growth.

(2) method: it is necessary to completely remove the branches and leaves of the long insects, and then spray some insect forest to control the insects, so that the insects can be killed completely. In addition, in addition to removing the insects from the leaves, it is also necessary to let the medicine seep into the soil and kill the eggs in the soil. Or replace the soil, wash the roots, and then replace it with a new basin.

Third, suffered from waterlogging

(1) symptoms: if there is too much water, it will form waterlogging, especially if the soil drainage function is not good, the roots will rot, the leaves will not get enough nutrients, and they will bend and fall off.

(2) method: if the situation of waterlogging is serious, the plants should be dug up and replaced with a new basin. If the situation is relatively light, you can pile some soil at its base so that adventitious roots can grow on its neck.

IV. Insufficient fertilizers

(1) symptom: if its leaves are yellow and curved, and the flowers are small and the branches are thin, then it is lack of fertilizer.

(2) method: give it fertilizer according to its missing fertilizer. If the roots are injured due to severe deficiency, fertilize the leaves, preferably in the evening, and sprinkle them on the back of the leaves so that they can recover as soon as possible. If it is very weak, give it a few more times, with less dose, to prevent the occurrence of fat damage.