What to Do When Apple Tree Leaves Turn Yellow
Let's introduce some small experiences in plant cultivation on what to do when apple tree leaves turn yellow. Next, the editor will introduce to everyone.
What to Do When Apple Tree Leaves Turn Yellow
Apple trees belong to the Rosaceae family and Malus genus, and they are deciduous trees. The main reason for the yellowing of leaves is excessive branching, strong sunlight, excessive watering, improper fertilization, and diseases and pests. In summer, apple trees should trim the yellowed leaves to ensure the canopy is ventilated and well-lit with sufficient sunlight. Normally, water should be rationed, and some ferrous sulfate can be applied to improve the soil pH, helping it to recover.
What Causes Apple Tree Leaves to Turn Yellow
Apple trees are Rosaceae family and Malus genus plants, and they are deciduous trees. The yellowing of leaves is mainly caused by excessive branching, strong sunlight, excessive watering, improper fertilization, and diseases and pests.
Reasons for Apple Tree Leaves Turning Yellow
1. Pest damage: The apple leafminer and red and white spiders cause leaf yellowing and massive leaf shedding when encountering rainfall.
2. Viruses: Apple tree viruses include mosaic, mottling, streaking, ring spot, and edge types, all of which can cause yellowing leaves.
3. Root rot: Excessive watering in apple trees causes root rot, making it difficult for the tree to absorb moisture and nutrients from the soil, resulting in yellow leaves.
How to Deal with Yellowing Apple Tree Leaves
Clean the orchard: In winter, remove the rough bark from the main trunk of apple trees, sweep the leaves, and burn them outside the orchard. In spring, before sprouting, spray 3-5 degrees of lime sulfur mixture, chlorpyrifos plus pyridaben.
Fertilization: Apply organic fertilizers to strengthen the tree's vigor. From mid-May to early June, you can spray carbendazim-manganese zinc solution or myclobutanil, etc. Increase the application of organic fertilizers, and water early spring and early autumn with pyrimidine nucleoside antibiotics.
Preventing Apple Tree Leaves from Turning Yellow
1. Pruning: In summer, apple trees should trim yellow leaves to ensure the canopy is ventilated and well-lit with sufficient sunlight, allowing it to grow better.
2. Watering: Apple trees should be watered reasonably, with more watering in summer to maintain moisture and ventilation, which can reduce yellowing leaves.
3. Fertilization: Stop fertilizing apple trees in summer to avoid root burning and yellowing. Apply some ferrous sulfate to improve the soil pH, helping it to recover.
The methods introduced in this article for dealing with yellowing apple tree leaves are provided as reference suggestions for everyone.