Arthrospira

It is essential to clarify for agricultural professionals that Arthrospira is not a plant disease. It is a genus of filamentous cyanobacteria commonly associated with the production of spirulina. These organisms do not infect or damage crops; instead, they are recognized for their beneficial roles in biological research and agriculture.

As a pathogen, Arthrospira has no clinical significance in plant pathology. It lacks the mechanisms to invade plant tissues or cause symptoms such as wilting, necrosis, or chlorosis. In fact, various extracts derived from these cyanobacteria are utilized to promote plant growth and improve overall crop health.

The agricultural value of Arthrospira lies in its application as a bio-fertilizer and a powerful growth stimulant. When applied correctly, these bioproducts enhance the chlorophyll content of leaves, stimulate root development, and assist plants in overcoming abiotic stresses such as drought, high salinity, or extreme temperatures.

In hydroponic or aquaculture environments, the presence of these cyanobacteria is often an indicator of environmental conditions rather than a plant illness. Overgrowth in such systems is typically caused by excessive light exposure or nutrient imbalances in the water, which necessitates technical adjustments rather than chemical control.

Prevention and management in intensive farming systems include:

• Maintaining optimal water circulation to prevent stagnation.
• Adjusting nutrient formulas to reduce excess phosphorus accumulation.
• Using mechanical filtration and ultraviolet sterilization in closed-loop systems.
• Implementing regular cleaning schedules for irrigation infrastructure.