Reasons for Yellowing Leaves on Peach Trees and Solutions

Flowers & Gardening Jan 1, 1970 0 views

There are five reasons for yellowing leaves on peach trees. The first is excessive pruning, which requires urea foliar feeding. The second is pests and diseases, which require spraying the corresponding agents. The third is insufficient light, so you should provide as much light as possible and prune appropriately to ensure light penetration. The fourth is drought or waterlogging, so you need to maintain a water balance. The fifth is too much fruit set, so you need to thin flowers and fruit.

1. Foliar feeding

(1) Specific cause: If pruning is too severe and few branches and leaves remain on the aboveground part, the aboveground and underground parts will lose balance. As a result, a large number of roots die off, causing an overall nutrient imbalance. If this happens during a period of rapid growth, it can cause the leaves to turn yellow.

(2) Solution: Use urea at a concentration of 0.3 percent for foliar feeding, once a week, three times in a row.

2. Spray chemicals to deal with pests and diseases

(1) Specific cause: Conditions such as "crown gall" and "root-knot nematode" can all cause the leaves to turn yellow.

(2) Solution: Once discovered, promptly cut off the parts affected by pests or diseases, then spray chemicals such as Bordeaux mixture.

3. Provide sufficient light

(1) Specific cause: With insufficient light, chlorophyll cannot form, the leaves may turn yellow, and they may also become thinner.

(2) Solution: Let the plant receive as much sunlight as possible. In addition, pay attention to pruning to increase light penetration.

4. Regulate the water balance

(1) Specific cause: Both drought and waterlogging can cause the leaves to turn yellow, or even die.

(2) Solution: When rainfall is very low, or when the rainy season begins, take different measures accordingly: water in the earlier period and drain in the later period, to adjust the water balance.

5. Thin flowers and fruit

(1) Specific cause: If there is too much fruit and the load is too heavy, nutrients will be insufficient, resulting in yellow leaves.

(2) Solution: Do not pursue yield alone; you need to thin flowers and fruit and keep a reasonable load.