What if the crown pear got chicken claw disease? How to prevent and cure effectively?

Chicken claw disease of Huangguan pear, also known as "fruit brown spot" or "fruit face flower spot", generally occurs in July and August when the fruit is near maturity, and some irregular brown patterns appear on the fruit surface, which are similar to chicken claws, which seriously affect the appearance quality of the fruit and cause great losses to fruit growers. So what if the crown pear has chicken claw disease? How to prevent and cure effectively?

First of all, let's take a look at the reason why the crown pear suffers from chicken claw disease:

1. Lack of trace elements in the process of fruit epidermis cell formation, the demand for boron, zinc and calcium is the most, and these elements are the most lacking in the soil in this area. Soil supply is far from being able to meet the needs of trees and fruits, resulting in "chicken claw disease".

2. Low organic matter content, heavy application of chemical fertilizer and light bacterial fertilizer and farm manure reduced soil organic matter and beneficial microflora, soil consolidation and low fertilizer use efficiency.

3. The influence of adverse climate during the fruit expansion period, such as low temperature, cloudy day, lack of light and other climatic conditions are the inducements of "chicken claw disease".

4. Other factors, such as poor pollination, poor permeability of fruit bags and fruit bags containing toxic substances, are also easy to cause "chicken claw disease".

Once the cause has been found, let's take a look at the prevention and control measures.

Chicken claw disease can only be prevented comprehensively, and no method will have a good effect when it emerges. The comprehensive prevention measures are as follows:

1. Supplement zinc, boron, calcium, iron and other nutrient elements.

It can be combined with fertilization and mixed application in autumn to produce Youli boron and zinc fertilizer 200g / mu in American borax group plus Swiss Ciba company to produce Ruilu 3-5g / plant, spraying 1500 times of Ciba boron twice 2-3 days before flowering and at full bloom, spraying Antaisheng twice after falling flowers and before bagging, spraying 2000-3000 times calcium before bagging and one month before picking, etc. it can effectively supplement boron, zinc, calcium and other elements urgently needed for fruit growth. Prevent the occurrence of "chicken claw disease".

2. Apply home beneficial microorganism to increase the number of beneficial bacteria in soil, improve the utilization rate of fertilizer, and enhance the ability of water and fertilizer conservation.

Applying 500g / mu fertilizer in autumn and applying 500g / mu in fruit expansion period combined with spraying 2000 times of Yimichi twice in growing season can prevent various diseases and play a role in promoting yield and quality.

3. Do a good job of pollination.

Appropriately postpone bagging time, promote pericarp development and aging, and enhance pericarp adaptability to adverse environment. When choosing pear bags, use fruit bags with good ventilation.