Causes and Solutions for Dry, Withered Apple Leaf Edges

In apple cultivation, problems first show up on the apple leaves, so we can often observe leaf growth to learn about the growing condition of the apple tree, whether it is sick, or lacking some nutrient element, or affected by external influences. That way we can make corresponding adjustments. So what exactly is the problem when apple leaf edges dry up and wither? Let us take a look together.

1. Causes

One cause is a lack of potassium, and another is pesticide concentration being too high when sprayed, causing pesticide damage. Sometimes too much fertilizer is applied too close to the root system, and the concentration is too high, burning the roots and affecting growth. Some diseases, such as root rot, easily lead to the phenomenon of dry edges. Sometimes a lack of calcium also causes the phenomenon of dry leaf edges.

2. Improving Nutrient Deficiency

Generally, if it appears in only a few cases at first, you can start improving it. For potassium deficiency, you can promptly supplement some potassium fertilizer, or use plant ash mixed with soil. After a period of time it should improve. It is best to keep the soil moist, with good absorption, and maintain the balance of the soil solution. In the case of calcium deficiency, it is best to use thiazole copper as a root drench, because after calcium deficiency the roots rot easily. If only old leaves are dry and withered, use Fubaixing brand synergistic calcium. The effect is fairly obvious, and the speed of turning green again is fast.

3. Pesticide Damage and Fertilizer Damage

Use safe and efficient pesticides, do not use pesticides with high toxicity and great harm, use the prescribed suitable concentration, and do not arbitrarily increase the concentration. When spraying pesticides, pay attention to even application, and do not spray one spot for a long time. Use them again only after the safe interval period, and wait a longer interval before using them again. Do not use farmyard manure without fermenting it, do not use it in excess, and do not use it too close to the roots; when using chemical fertilizers, strictly control the amount. When applying fertilizers with water, pay attention to the concentration of foliar fertilizer, otherwise it easily burns the leaves.

4. Disease Prevention and Control

Infection by some soil-borne pathogens causes root rot, and after the roots rot, the plant also begins to weaken; once the root system can no longer absorb, it will be noticed. The plant's leaves begin to dry and wither from the edges. The main control method is root drenching treatment: dig away the soil on the surface of the root system, expose the roots, cut off the diseased roots, then pour on a mixture of Chinese herbal fungicide at 300 times dilution and garlic oil at 1000 times dilution, and afterward cover with new sterilized soil.

Dry, withered apple leaf edges may be due to the above causes. If so, you can refer to the above improvement methods. There may also be other causes; analyze according to the specific situation.