What is Tomato root rot and How to Cure it Naturally?

Tomato root rot is one of the major obstacles that outdoor and commercial growers face. This slow, creeping disease, which can enter tomatoes at the hips of their roots, may result in stunted growth, wilting, and, ultimately, death. It is early detection and phytophthora root rot control that is central for a plant’s survival and prevention of asset damage. Now, let’s go into further detail about tomato root rot, its causes, signs of it and how to fight against it.


What is Tomato root rot?

Tomato root rot is mainly the result of highly prevalent soil-borne fungi and moisture conditions in excessive amounts. It compromises the plant’s root system and makes nutrient uptake less effective, resulting in setbacks in growth and yield.

Phytophthora Root Rot Symptoms and Causes:

What causes phytophthora root rot, is the common question that most of the gardens ask! Detection of root rot symptoms is of utmost importance for effective measures to be taken in the beginning. 

  1. Waterlogged Soil: Just like with tomato plant root rot, waterlogged soil is the primary cause. The right atmospheric conditions create an ideal environment for fungi like Pythium, Phytophthora, and Rhizoctonia, which lead to root attacks. These fungi invade through the root tips and spread throughout the root system, gradually killing the healthy parts.
  2. Discolored Roots: The roots blacken represent the symptom of root rot problem. In healthy roots white or light brown colour appear, but damaged roots may become pitch black or blackish and mushy which indicates the decay of the affected area. This decomposition harms the roots’ functionality to absorb nutrients and water purposely. Close-up-of-tomato-plant-stem-and-roots-showing-signs-of-root-rot.
  3. Wilting and Yellowing: Plants with root rot exhibit signs like withering or yellowing of leaves, even with appropriate watering. The destroyed roots fail to supply water and nutrients to the rest of the plant, causing dehydration symptoms.
  4. Stunted Growth: The chance of the dead roots to do nutrients absorption incorrectly will result in plants growth retardation. Sick tomatoes will be having stunting growth with low production of small and flimsy fruits affecting the output and income.
  5. Root Damage: There is a danger that the fungus will weaken root systems and consequently make them unable to carry plants at all. These damages can as well result in destabilization of the plant and developing other pests and diseases.

Phytophthora Root Rot Treatment and Management to Get Rid of Tomato Root Rot:

Effective management strategies can mitigate losses from root rot:

  1. Soil Drainage: Making proper drainage provision is one of the ways to minimize root rot. When it comes to planting tomatoes, make sure that the soil drains well or it might waterlog. Still your soil with sand or perlite if needed for you to increase its ability to drain.
  2. Crop Rotation: Periodic crop rotation helps prevent fungi buildup in the soil, reducing the likelihood of future root rot outbreaks. Avoid planting tomatoes or other Solanaceous family plants in the same spot consecutively; don’t replant them there the following year.
  3. Soil Sterilization: Frequent sterilization of the soil before planting can remove deadly fungi which prevents root rot. Such processes, using either steam or chemical treatments, are employed; however, care should be exercised to avoid killing beneficial microorganisms.
  4. Remove Affected Plants: In case a plant has severe infections, remove it and the soil around it and dispose of it as soon as possible. This actually impedes the spread of the pathogen to other plants thereby the losses could be immensely reduced.
  5. Biological method: The case of tomato plant root rot is considered one of the most disheartening diseases for both gardeners and commercial growers. Lucky for us such solutions like Trianum Shield and the bacillus subtilis are the best fungicide solution for root rot. These are on the line and this can ensure effective Phytophthora root rot treatments.


Trianum Shield, root rot fungicide, is a pesticide preparation that has Trichoderma harzianum which suppresses root rot by colonizing the root zone so that the pathogenic fungi like Pythium and Rhizoctonia cannot infest the roots. It provides a shield, so that the chance of pathogenic fungi to infect becomes less.

In contrast, Bacillus Subtilis, the best fungicide for root rot, is a bacterium derived from Bacillus subtilis, providing the mycelial matrix with antimicrobial peptides that stop the growth of pathogenic fungi. This is good practice providing a stable soil environment avoiding the risk of root rot.

They offer a total answer protecting root systems against root rot, being a major cause of a decrease in yield, ensuring a healthier root system for healthy plants.



Tomato plant root rot significantly affects production, but proactive detection and management can extensively mitigate these damages. Farmers can eliminate this widespread disease effectively by recognizing early symptoms and employing effective treatments. Adequate drainage, crop rotation, and soil sterilization are crucial preventive strategies that control root rot. These measures ensure the cultivation of healthy tomato plants, which yield delicious and abundant fruits.


  1. Datnoff, L. E., S. Nemec, and K. Pernezny. “Biological control of Fusarium crown and root rot of tomato in Florida using Trichoderma harzianum and Glomus intraradices.” Biological control 5.3 (1995): 427-431.
  2. Sivan, Alex, and Ilan Chet. “Integrated control of Fusarium crown and root rot of tomato with Trichoderma harzianum in combination with methyl bromide or soil solarization.” Crop Protection 12.5 (1993): 380-386.

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