Examples of Plant Diseases and Implementation Methods Using Calcium Chloride

1. Tomato Blossom End Rot

Description: Tomato blossom end rot is caused by insufficient calcium supply during fruit development, leading to irregular expansion of the fruit skin, resulting in cracking. This not only affects appearance but also leads to fruit rot, reducing market value.

Implementation Methods:

Foliar Spray: During fruit development, spray a 0.5% calcium chloride solution evenly on tomato plants' leaves and fruits once a week for 3-4 weeks.

Soil Application: Before planting, mix an appropriate amount of calcium chloride (5 kg per acre) into the soil to ensure adequate calcium supply.

2. Apple Bitter Pit

Description: Apple bitter pit is a physiological disorder caused by calcium deficiency, resulting in small, bitter spots inside the fruit flesh, severely affecting fruit quality.

Implementation Methods:

Foliar Spray: During apple fruit enlargement, spray a 0.3%-0.5% calcium chloride solution every 10-15 days until one month before harvest.

Soil Application: Apply 0.5-1 kg of calcium chloride per tree around the tree's soil, and water to promote calcium absorption.

3. Pepper Blossom End Rot

Description: Pepper blossom end rot usually occurs in the late stage of fruit development, characterized by water-soaked spots at the fruit's bottom, gradually turning into dark brown dry rot spots due to calcium deficiency.

Implementation Methods:

Foliar Spray: During the early stage of pepper fruit formation, spray a 0.3%-0.5% calcium chloride solution once a week until fruit maturity.

Drip Irrigation: Add calcium chloride solution to the irrigation water, ensuring calcium supply during each watering, with a concentration not exceeding 1000 ppm.

4. Strawberry Gray Mold

Description: Strawberry gray mold is caused by the Botrytis cinerea fungus, common in humid environments, forming gray mold spots on the fruit surface, leading to fruit rot.

Implementation Methods:

Foliar Spray: Use a 0.5% calcium chloride solution to spray strawberry plants, especially the fruits and flowers, once a week to enhance disease resistance.

Soil Application: Mix calcium chloride (50 grams per square meter) into the soil before planting to increase soil calcium content, improve soil structure, and reduce pathogen proliferation.

Conclusion

Appropriate application methods of calcium chloride can effectively prevent and mitigate various plant diseases, improving crop yield and quality. Proper implementation and reasonable application frequency are key to maximizing the effectiveness of calcium chloride.

For more information on the application of calcium chloride in different crops, or if you have any other questions, please feel free to contact us.