Causes of riger begonia leaves moldy in winter. Prevention and control methods of riger begonia leaves moldy in winter. With the arrival of winter, many flowers have begun to enter the dormant period. As a representative of winter flowers, riger begonia is loved by many flower friends because of its bright flowers and unique leaf shape. Many flower friends have found that the leaves of riger begonia are prone to moldy during the maintenance process, which not only affects the ornamental effect, but also may pose a threat to the health of the plant. This article will provide you with a detailed analysis of the causes and prevention methods of rieger begonia leaves moldy in winter. Reasons why Rieger Begonia leaves moldy in winter 1. Excessive humidity: In winter, the temperature difference between indoor and outdoor is large, and the air humidity is often high. If it is not properly maintained, Rieger Begonia leaves can easily moldy due to excessive humidity.
2. Insufficient light: In winter, the sunshine time is shortened and the light intensity is weakened, resulting in the slow growth of Rieger Begonia, reduced resistance, and easy to be attacked by bacteria.
3. Improper maintenance: Factors such as excessive fertilization, improper watering, and poor soil permeability can lead to mold in Rieger Begonia leaves. Prevention and control methods for moldy in Rieger Begonia leaves in winter 1. Control humidity: Maintain indoor air circulation and avoid too humid air. Use a dehumidifier or place a desiccant to reduce indoor humidity.
2. Increase light: Place Rieger Begonia in a sunny place and ensure at least 4-6 hours of light time every day.
3. Reasonable fertilization: Apply appropriate amount of compound fertilizers according to the growth needs of Rieger Begonia to avoid excessive fertilization.
4. Control watering: In winter, appropriate amount of watering should be done to keep the soil slightly moist. When watering, try to water from the roots to avoid splashing water on the leaves.
5. Maintain soil breathability: Regularly loosen soil to ensure good soil ventilation and is conducive to root respiration.
6. Timely treatment of sick leaves: When the leaves of Rieger Begonia are found to be moldy, cut off the sick leaves in time and spray appropriate amounts of fungicides, such as carbendazim, chlorothalonil, etc.
Moldy on Rieger Begonia leaves in winter is a common maintenance problem, but as long as you master the correct maintenance methods, this problem can be effectively avoided. I hope this article can provide a useful reference for your Rieger Begonia maintenance.
References: "Flower Maintenance Technical Manual", China Agricultural Press, 2018 edition.