Blossom End Rot on Tomato: Symptoms, Causes And Prevent

What is Blossom End Rot?

Blossom End Rot in tomato plants is a common problem that affects the developing fruit. It is characterized by the appearance of dark, sunken patches at the blossom end (bottom) of the fruit. To effectively address Blossom End Rot, it is important to understand in detail. Let’s explore them in detail about symptoms, causes, and prevent:

Symptoms of Blossom End Rot:-

Blossom End Rot on Tomato

The most noticeable symptom of Blossom End Rot is the dark, sunken patches that develop at the blossom end of the tomato fruit. Initially, the affected area may appear water-soaked and pale, but as the condition progresses, it turns brown or black and becomes sunken in appearance. In severe cases, the affected area can enlarge and become leathery.

What Causes of Blossom End Rot?

Blossom End Rot is primarily caused by a calcium deficiency in the developing fruit. Calcium is essential for proper cell development and structure in plants. When the calcium supply is inadequate, the cell walls of the fruit become weak and are unable to maintain their integrity. As a result, the fruit tissues break down, leading to the characteristic dark, sunken patches.

However, it is important to note that Blossom End Rot is not solely caused by a lack of calcium in the soil. Other factors that contribute to its occurrence include:

  • Inconsistent watering: Fluctuations in soil moisture levels can hinder calcium uptake by the plant, even if sufficient calcium is present in the soil.
  • Rapid plant growth: When tomato plants experience rapid growth, such as during periods of heavy rainfall or excessive fertilization, the demand for calcium in the developing fruits increases. If the calcium supply is unable to keep up with this demand, Blossom End Rot can occur.

How to prevent Blossom End Rot?

While there is no way to reverse Blossom End Rot once it has affected a fruit, several measures can help prevent its occurrence and address the underlying causes:

  • Consistent watering: Maintain consistent soil moisture levels by watering the plants regularly. Avoid allowing the soil to dry out completely and then become overly saturated. Mulching around the plants can help retain soil moisture and regulate its availability to the roots.
  • Soil preparation: Before planting, ensure that the soil is well-drained and has proper calcium levels. Conduct a soil test to determine if any amendments are needed to improve calcium availability.
  • Calcium supplementation: If a calcium deficiency is suspected, you can supplement the plants with calcium to prevent Blossom End Rot. This can be achieved through various methods, such as incorporating calcium-rich organic matter, like crushed eggshells or agricultural lime, into the soil prior to planting. Another option is to use foliar sprays that contain calcium. These sprays are applied directly to the leaves and are absorbed by the plant.
  • pH adjustment: Check the soil pH and ensure it is within the appropriate range for optimal calcium uptake by the plant. Tomato plants generally prefer a slightly acidic to neutral pH level.

Blossom End Rot is a frustrating problem for tomato growers, impacting fruit quality and yield. Understanding its symptoms, causes, and cures helps prevent this issue. Consistent soil moisture, adequate calcium levels, and addressing soil imbalances can greatly reduce Blossom End Rot, promoting healthy tomato plants and high-quality fruits. Happy Gardening….

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