But the maintenance of longevity flowers can't be sloppy! In addition to paying attention to daily management, some pest control work cannot be left behind!
For example, some time ago, a flower friend asked Uncle Gardener for help: "Uncle Uncle, there are some small white spots on my longevity flower. What's wrong? " Is it powdery mildew? "
Yes, the symptoms described by Huayou are indeed powdery mildew. Powdery mildew is a common disease of longevity flower, which will invade the stems and leaves of plants and affect the normal growth of plants. The main manifestation of powdery mildew is that white powdery substances will appear in the affected area. This "white powdery" substance is difficult to wipe off even with hands and brushes. Only by cleaning with potassium permanganate solution will there be obvious changes.
If the longevity flower has powdery mildew and wants to be treated, it is also necessary to gently wipe the white powder on the surface of leaves and stems with sponge scouring pad dipped in potassium permanganate solution, bask in the sun more, and keep the environment ventilated, so that the state of longevity flower will gradually improve. However, if left unchecked, the scattered white spots on the surface of these leaves will gradually develop into patches, even covering the front and back of the whole leaf. At that time, it will be difficult to eradicate, and it will also affect the photosynthesis of plants, which will lead to the obstruction of plant metabolism and eventually develop into more serious diseases such as rust, which will lead to the scorching and curling of the leaves of longevity flowers, which will be more difficult to treat.
If it is found that the longevity flower has powdery mildew, and the situation has developed seriously, the treatment should be strengthened at this time. It is best to use sulfur powder, then adjust the sulfur powder into paste with water, and brush the paste on the affected area with a soft brush. At the same time, some sulfur powder can be sprinkled on the soil surface of the longevity flower to promote root absorption with watering. Regular medication can bring the longevity flower back to life, the photosynthesis function will return to normal, and the "symptoms" of leaves and neck will gradually disappear.
But in peacetime, we should pay attention to prevent powdery mildew. Can avoid a lot of trouble.
First, the environment should be ventilated. If the longevity flower is in an unventilated environment for a long time, it is easy to induce the reproduction and growth of bacteria, leading to plant infection with powdery mildew. Second, management should be standardized. Pay attention to watering when dry and wet alternate, apply fertilizer reasonably, not too much nitrogen fertilizer, and apply calcium fertilizer and potassium fertilizer appropriately to enhance the growth of longevity flowers and ensure the healthy growth of plants. Proper pruning and shaping, eliminating dead branches, diseased branches, weak branches and over-dense branches, and improving the light transmittance and ventilation between plant branches and leaves can effectively prevent the occurrence of pests and diseases.
Third, there is plenty of light. When maintaining at ordinary times, it must be placed in a place with scattered light, so that the leaves will not be burned by exposure, and there will be no various conditions due to lack of sunshine, which is more convenient for flower friends to take care of longevity flowers.
If you want longevity flowers to be free from pests, you should mainly start from daily prevention work. Thanks for reading, like friends can like or share ~