Stem Base Rot Control

Stem base rot, primarily caused by the fungus Fusarium oxysporum, is a significant agricultural challenge that targets the plant’s essential water and nutrient transport systems.

PRIMA Agro Tech addresses this issue with a targeted microbial approach, utilising effective strains like Streptomyces thermovulgaris, Geobacillus thermocatenulatus, and the biocontrol agent Trichoderma harzianum.

These microorganisms work in concert to inhibit the pathogen, protect the plant’s vascular system, and enhance overall plant health, offering a comprehensive and sustainable solution for managing stem base rot and ensuring the vitality of crops.

About the Plant Disease

Stem base rot control is crucial in agricultural practice, mainly due to the damage caused by the fungus Fusarium oxysporum. This pathogen targets the vital water and nutrient transport networks within plants, specifically attacking the stem or base of the stem, leading to significant crop damage and yielding loss.

Pathogen(s)

Fusarium oxysporum, a species within the Fusarium genus, is the primary causative agent of stem base rot. This fungus infiltrates the plant’s vascular system, disrupting water transport and essential nutrients. The damage to the vascular tissues results in severe physiological stress for the plant, often leading to wilting, yellowing, and eventual death.

Symptoms & Damage

The typical symptoms of stem base rot include:

  • Wilting: Affected plants display wilting, starting from the lower sections during the day. This symptom is often more pronounced under the stress of high temperatures and sunlight.
  • Temporary Recovery: Infected plants may appear to recover overnight or in the cooler hours of the morning, but this recovery is temporary as the disease progresses.
  • Plant Decline: As the infection advances, the plant becomes increasingly limp, turns yellow, and ultimately dies.

Stem base rot can lead to significant crop losses, especially if the infection spreads unchecked.

Microbial Consortium

PRIMA Agro Tech has developed an effective microbial solution to manage stem base rot, utilising a combination of beneficial microorganisms. Through the strategic use of these microorganisms, PRIMA Agro Tech offers a sustainable and environmentally friendly approach to combat stem base rot, enhancing the health and productivity of affected crops.

Streptomyces thermovulgaris strain 09924-c8Ka-50-3: This strain effectively produces antifungal compounds that target Fusarium oxysporum, inhibiting its growth and preventing its spread. It helps in protecting the vascular system of the plants from infection.

Geobacillus thermocatenulatus strain KNOUC105: Adapted to thrive in warm soil conditions, this bacterium competes with Fusarium oxysporum for resources, effectively reducing its population in the soil and its likelihood of infecting plants.

Trichoderma harzianum strain CBS101525: A well-known biocontrol agent, this fungus forms a symbiotic relationship with plant roots. It offers a protective barrier against Fusarium oxysporum and enhances the plant’s natural defence mechanisms, increasing its resilience to the pathogen.

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