Zoopagales fungi

Zoopagales are an order of fungi recognized primarily for their role as specialized predators and parasites of microscopic soil animals. In modern agriculture, they are highly valued for their contribution to maintaining soil health by naturally regulating the populations of soil-dwelling pests, which is essential for ensuring robust crop development.

The biological nature of these fungi involves complex interaction with hosts such as nematodes, amoebae, and rotifers. Unlike phytopathogenic fungi that attack plant tissues directly, Zoopagales act as biological regulators. They capture their prey using specialized adhesive hyphae or haustoria, effectively preventing these pests from damaging the root systems of agricultural crops.

These organisms are ubiquitous in diverse environments, particularly in fertile soils where cereal and horticultural crops are grown. Their presence is highly dependent on environmental conditions, as they thrive in moist, nutrient-rich soils. By controlling the population of soil pests, they prevent secondary infections caused by bacteria or opportunistic fungi that usually enter through wounds made by nematodes.

There are no direct symptoms of plant infection by Zoopagales, as they are not plant pathogens. However, the signs of their beneficial activity are noticeable in the field: strong and healthy root systems, lack of nematode-induced galls, and overall crop vigor. Farmers often see less need for synthetic nematicides when these natural biological controllers are flourishing in the soil.

To promote the growth and efficiency of these fungi in the field, growers should adopt sustainable management practices:

• Implement regular applications of organic matter to support soil microbial diversity.
• Minimize the use of broad-spectrum chemical fungicides that can disturb the soil food web.
• Maintain proper soil moisture levels through efficient irrigation.
• Employ crop rotation to ensure a continuous food supply for beneficial soil biota.