White Root Rot Control

White root rot, a significant disease in rubber cultivation caused by the fungus Rigidoporus microporus, presents a major challenge due to its devastating impact on plant health and productivity.

PRIMA Agro Tech has responded to this threat with a targeted microbial approach, utilising the strengths of Streptomyces thermovulgaris and Trichoderma harzianum. These microorganisms work together to inhibit the pathogen, protecting the root system. and enhancing the plant’s natural defences.

Offering a comprehensive and sustainable strategy for controlling white root rot ensures the longevity and vitality of rubber plantations.

About the Plant Disease

Rigidoporus microporus primarily survives on the remains of root stumps and spreads through direct contact with healthy or newly planted trees, posing a major threat to rubber plantations. White root rot control is essential in rubber cultivation, as the disease leads to significant plant mortality.

Pathogen(s)

Rigidoporus microporus is a formidable pathogen in rubber cultivation. It persists in the soil, particularly in the remnants of previous root systems, and can easily infect new plants. The fungus’s ability to spread from infected root stumps to healthy plants makes it a challenging and persistent issue in rubber plantations, requiring effective management strategies to minimise its impact.

Symptoms & Damage

The symptoms and damage caused by white root rot include:

Leaf Changes: Initially, the rubber plant leaves appear dull and droop downwards
Fungal Growth: White fungal threads, a characteristic sign of Rigidoporus microporus infection, are often attached to the root surface
Root Rot and Plant Death: As the disease progresses, the roots begin to rot, eventually leading to the death of the plant, resulting in substantial losses in rubber plantations if not properly managed

Microbial Consortium

PRIMA Agro Tech has developed a strategic microbial solution to combat white root rot. Through this combination of beneficial microorganisms, PRIMA Agro Tech provides an effective and sustainable approach to managing white root rot, focusing on protecting rubber plants and maintaining the health and productivity of the plantation.

Streptomyces thermovulgaris strain 09924-c8Ka-50-3: This bacterium produces antifungal compounds effective against Rigidoporus microporus. It inhibits the growth of the fungus and protects the roots from infection, thereby preventing the spread of the disease.

Trichoderma harzianum strain CBS101525: Known for its biocontrol capabilities, Trichoderma harzianum forms a protective barrier around the roots and produces enzymes that degrade the cell walls of Rigidoporus microporus. This directly combats the pathogen and enhances the rubber plant’s immune responses, increasing its resilience to the disease.Biotracol

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