Tomatoes are vulnerable to a variety of diseases that can lead to rotting and loss of your harvest. The most common causes include soil contamination with bacteria and fungi, excess moisture, improper watering, and the application of fertilizers. Neglecting to weed your tomato plants can also contribute to the problem.

Fortunately, you can avoid using harmful chemicals during harvest by opting for biological or folk remedies to protect your crops.

Common Tomato Diseases and How to Combat Them

  1. Alternaria (Brown-Gray Spots on Stems and Fruits):
    • Symptoms: Brown-gray spots appear on the stems and fruits, often turning dry and dark. Affected fruits are inedible.
    • Treatment: Use Raik or Oxyhim for chemical treatment, spraying once a week for a month before harvest. For organic options, try Trichodermin or Fitosporin.
  2. Anthracnose (Small, Soft Spots on Fruits):
    • Symptoms: Small, soft spots appear on the fruits, which may cause them to rot.
    • Treatment: Remove the affected bushes and spray with a 1% Bordeaux liquid solution or use Agrolikar, Chistoflor, or a solution of 40 grams of chlorine and copper oxide in a bucket of water.
  3. Top Rot (Fruits Rotting from the Top):
    • Symptoms: The fruits start to rot from the top, often resulting in soft, decayed spots.
    • Treatment: Prepare a 0.2% calcium chloride solution and spray every 7 days. Additionally, feed the seedlings with potassium or calcium nitrate in the spring, and add 100 grams of ash to the planting holes before transplanting.
  4. Watery Rot (Cracking and Transparent Spots on Fruits):
    • Symptoms: Transparent spots appear on fruits, which crack and develop white fungal spores. The fruits emit an unpleasant smell.
    • Treatment: Use a 1% Bordeaux liquid solution to treat the affected tomatoes.
  5. Gray Rot (Gray Plaque on Leaves and Bush):
    • Symptoms: A gray plaque with blisters appears on the leaves and quickly spreads throughout the bush.
    • Treatment: Use ash, copper sulfate, Trichodermin, Veride, Gliocladin, or Phytosporin to treat gray rot.
  6. Phytophthora (Brown, Deforming Spots on Bushes):
    • Symptoms: Brown spots appear on the leaves, which deform and turn black.
    • Treatment: For prevention, apply Consento or Revus every 10 days. For infected bushes, use Infinity, Cuproxant, Hom, or copper-based products like 1% Bordeaux liquid. Once the fruits have ripened, apply Alirin, Fitosporin, Gamair, or Trichodermin Veride.
    • Additional Treatment: For a homemade solution, dissolve 1 teaspoon of boric acid in 1 liter of boiling water, then add 9 liters of water, 20 drops of iodine, and 1 liter of whey. Alternatively, dissolve 100 grams of yeast in warm whey, let it sit for 5 hours, then dilute with 9 liters of water and spray.

General Tips for Protecting Your Tomato Harvest:

  • Preventive Care: Regularly monitor your plants for early signs of disease and apply treatments before the situation worsens.
  • Avoid Overwatering: Make sure not to create overly moist conditions, as this encourages rot and fungal growth.
  • Use Organic Solutions: Whenever possible, opt for biological remedies like Trichodermin, Fitosporin, or homemade solutions to protect your tomatoes naturally.

By staying proactive and using the right treatments, you can protect your tomatoes from common diseases and ensure a healthy harvest.

Take care of your harvest and enjoy a bountiful crop!

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