Yellow spots on apple tree leaves can be indicative of an infection caused by a fungus or another pathogenic organism which requires swift treatment to arrest the spread of infection and preserve the tree’s health. Distinct yellow spots can manifest as either large, quarter-size spots or small flecks that eventually coalesce into a big mass. It is important to take the proper steps when looking to treat yellow spots on apple tree leaves.
Understanding the Cause
Before beginning treatment, it is important to understand the underlying cause of the yellow spots. While fungal infections are the most common cause of yellow spots on apples leaves, other possibilities include sodium, fertilizers or lack of sunlight or water. Once the underlying cause of the yellow spots has been identified, the correct treatment can be chosen.
Treatments
The primary treatment option for yellow spots on apple tree leaves is the use of fungicidal treatments. A fungicide is a chemical which prevents the spread of fungal infections in plants, and can be applied directly to the affected foliage. Fungicides are most effective when disease pressure is low and application is made soon after symptoms first appear. If the underlying cause of the spots is identified as something other than fungal infection, alternative treatments may be required.
For example, if a lack of sunlight or water is identified as the underlying cause, these environmental needs should be addressed as soon as possible. If sodium or fertilizer levels are too high, then a revamping of the tree’s fertilizing routine should be performed.
Preventative Measures
In order to prevent the spread of yellow spots on apple tree leaves, it is important to practice proper maintenance of the tree. Prune dead and decaying limbs, avoid overcrowding and check for diseases regularly, as this will drastically reduce the chance of infection. Additionally, proper fertilization and soil maintenance, combined with adequate water and sunlight, will help keep the tree healthy, and potentially even prevent yellow spots from developing.
Summary of Treatments
In summary, yellow spots on apple tree leaves can be treated by applying fungicidal treatments. Alternatively, if another underlying cause is determined, this should be addressed as soon as possible. Lastly, preventative maintenance is a crucial early step in keeping the tree healthy and reducing the risk of yellow spots developing in the future.
Spot Treatment
If only a few leaves have yellow spots, spot treatment may be a viable option to reduce the spread of infection. When spot treating, affected foliage should be removed and discarded as soon as possible, and the remaining foliage should be treated with a fungicide. Any exposed soil should be covered with mulch to reduce the spread of infection, and the tree should be examined regularly to check for the spread of infection.
Fungicidal Soil Treatment
In addition to spot treatment, fungicidal soil treatment can be beneficial in removing yellow spots on apple tree leaves. A fungicidal soil treatment can be applied directly to the soil surrounding the tree to prevent the spread of infection in the future. When applying a fungicidal soil treatment, make sure to follow the directions carefully to ensure proper application.
Insect Control
Lastly, insect control is a must when treating yellow spots on apple tree leaves. Insects can spread disease and create an environment where fungal infections can take root, so it is important to keep the tree protected from pests. If possible, introduce beneficial insects like ladybugs or lacewings to naturally control any pests, as this will help promote a healthy and balanced ecosystem without relying on chemical treatments.
