What to Do When Phalaenopsis Leaves Turn Black? Learn the Correct Way to Handle It
Phalaenopsis is fairly common in our daily lives. Its flowers resemble butterflies spreading their wings, which is why it is so popular with many people. Its ornamental value is very high, but Phalaenopsis is not as easy to grow as one might imagine. For example, during cultivation, the phenomenon of Phalaenopsis leaves turning black often occurs. So what should be done when Phalaenopsis leaves turn black? Below, the editor will give you a brief introduction. Let's take a look together!
1. Provide Shade in Time
Phalaenopsis is a flower that likes to grow in a semi-shaded environment, and its tolerance for strong light is relatively poor. If it is exposed to strong light, the leaves are easily scorched, leaf photosynthesis is hindered, and black spots and drying out gradually appear. Therefore, when caring for Phalaenopsis, we should pay attention to creating a cool and ventilated environment for it. Avoid direct sunlight on the leaves and provide only an appropriate amount of scattered light. When the sunlight is strong at noon, be sure to provide shade to ensure the normal growth of the Phalaenopsis.
2. Improve Ventilation
During growth, Phalaenopsis has relatively high requirements for air quality. If the air quality is too poor, the impact on the growth of Phalaenopsis is quite significant. Therefore, pay attention to ventilation to improve air quality. Moreover, if there is no ventilation for a long time, humidity will become too high and harmful gases will be produced, causing the leaves to be damaged and turn black. So we must ensure good ventilation and air permeability, expel harmful gases, and regularly wipe the leaves of the Phalaenopsis plant to keep them glossy.
3. Fertilize Reasonably
Improper fertilization is also a main cause of Phalaenopsis leaves turning black. When fertilizing, if the fertilizer accidentally drips onto the leaves of the Phalaenopsis, the heat generated by the fertilizer will scorch the leaves and cause fertilizer damage, so black spots appear on the leaves and they gradually turn black. Therefore, when fertilizing, we should apply it carefully and lightly. Never let fertilizer drip onto the leaves. If it does drip on them, be sure to rinse it off promptly with clean water, which can save them immediately. If it can no longer be remedied, then the affected leaves should be removed.
4. Prevention and Control of Anthracnose
Anthracnose can also cause Phalaenopsis leaves to turn black. Especially during the high temperatures of summer, if air circulation is poor, Phalaenopsis is highly susceptible to anthracnose, and the first symptom of anthracnose is black spots appearing on the leaves. To prevent and control anthracnose, first place the Phalaenopsis in a cool and ventilated place, and be sure to spray water regularly to lower the temperature. Then cut off the diseased leaves to prevent the disease from spreading, and then appropriately spray carbendazim, about once every two weeks, to avoid recurrence.
The above is a brief introduction to what to do when Phalaenopsis leaves turn black. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!