What medicine is effective for preventing and controlling peach fruit cracking?

Peach fruit cracking is a common disease during the peach growing period. If not prevented and controlled in time, the yield will drop severely. So what medicine should be sprayed for peach fruit cracking?

1. What medicine should be sprayed for peach fruit cracking?

Peach fruit cracking generally does not require spraying. This is because peach fruit cracking is mostly a physiological disorder, generally caused by a long drought followed by heavy rain, when the fruit tree absorbs a large amount of water and the fruit rapidly expands, bursting the skin open. At the same time, insufficient calcium fertilizer and nitrogen fertilizer, and excessive use of swelling agents, can all cause peach fruit cracking. Therefore, when fruit cracking occurs, drainage measures should be taken in time and fertilization should be scientific.

2. What causes peach fruit cracking? How to solve it?

1. Variety characteristics

Some peach tree varieties produce fruit that is prone to cracking. For example, varieties with loose, crisp flesh crack easily; rounder varieties crack easily; and early-maturing and mid-maturing varieties crack easily.

Solution: Choose varieties with firm, dense fruit flesh, an oblong shape, and late or very late maturity to plant. This can reduce the possibility of fruit cracking to a certain extent.

2. Environmental factors

During the peach pit growth period, rainy weather is often encountered, which easily causes fruit cracking; planting in soil that is relatively heavy in clay, has a high groundwater level, and has poor drainage also easily causes fruit cracking; sudden rainfall after a long drought can also cause fruit cracking; excessive pruning can also cause fruit cracking; severe damage to the tree body can also lead to fruit cracking; poor soil, and so on, can all cause peach fruit cracking.

Solution: Take drainage measures during rainy weather; when planting, choose soil with deep, loose soil layers, a high groundwater level, and good drainage; water in time during drought to maintain moisture; pruning should be based on the growth state of the tree body, just prune away excess branches and leaves to keep the plant well ventilated and transparent; strengthen management, prevent pests and diseases from damaging the tree body, apply sufficient base fertilizer, and improve poor soil.

3. Improper fertilizer and water management

Applying nitrogen fertilizer to young peach trees and during the growing period can make them grow quickly, but nitrogen fertilizer is not omnipotent and should not be applied continuously. Excessive application of nitrogen fertilizer makes the plant grow excessively and easily causes fruit cracking. In addition, applying only nitrogen fertilizer will lead to a lack of other nutrients such as calcium. Peach trees are extremely sensitive to calcium. Calcium deficiency will not only cause fruit cracking, but also cause peach fruit to soften and rot.

Solution: When fertilizing, mix scientifically and pay attention to the application ratio of other nutrients. It is recommended to apply fully decomposed organic fertilizer or compound fertilizer, which takes care of every nutrient. If fruit cracking still occurs, calcium fertilizer should be applied in time.

4. Excessive use of swelling agents

Now many fruit growers, in order to ensure yield, will more or less apply a little swelling agent during the fruit expansion period, so that the fruit produced is large and beautiful. This is also human nature. Applying an appropriate amount of swelling agent will not harm peaches. However, when swelling agents are used excessively or improperly, the flesh cells rapidly expand in a short time, eventually bursting the skin and causing fruit cracking.

Solution: The best approach is not to use swelling agents. Even if used, pay attention to the method and dosage. Never rush; proceed step by step.