For many years, pest management in agriculture has relied heavily on chemical pesticides. However, environmental concerns and the increasing resistance of pests to pesticides have led to a growing interest in biological control strategies. In particular, the use of natural predators against soil-borne pests has become an important component of sustainable agricultural systems.
Why Soil Pests Matter
The soil ecosystem is where plant roots develop and where complex interactions between organisms occur. Some soil-dwelling pests can directly damage plant roots, negatively affecting plant growth and productivity.
One of the most common soil pests in greenhouse production is the fungus gnat (Sciaridae). The larvae of these insects feed on root tissues and organic matter in the soil, weakening plants and making them more vulnerable to diseases. In addition, thrips pupae, which often develop in soil, play an important role in the life cycle of several economically important pests.
Research has shown that fungus gnat larvae can cause significant economic losses in greenhouse production, particularly in young plants (Cloyd & Dickinson, 2006).
Predatory Species in Biological Control
One of the most widely used biological control agents for soil pests is Hypoaspis miles (Stratiolaelaps scimitus). This predatory mite feeds on various soil-dwelling pests and helps regulate their populations naturally.
Hypoaspis miles is particularly effective against:
- Fungus gnat larvae (Sciaridae)
- Thrips pupae in soil
- Small soil-dwelling pest mites
- Soil stages of certain fruit fly species
The main advantage of this predator is its ability to adapt well to soil environments and feed on a wide range of prey species. For this reason, it is commonly integrated into Integrated Pest Management (IPM) programs in greenhouse production systems.
Queen Bioproduction produces Hypoaspis miles as part of its biological control solutions aimed at supporting sustainable pest management practices.
Integrated Pest Management and Sustainability
Biological control is rarely used as a single solution. Instead, it forms a core element of Integrated Pest Management systems, where biological, cultural, and monitoring strategies are combined.
Using predatory organisms helps reduce chemical pesticide use, lowering environmental impact while maintaining effective pest suppression.
By supporting the natural balance of soil ecosystems, biological control agents such as Hypoaspis miles contribute to a more sustainable agricultural future.
References
Cloyd, R. A., & Dickinson, A. (2006). Fungus gnat management in greenhouse production systems. Journal of Integrated Pest Management.
Van Lenteren, J. C. (2012). The state of commercial augmentative biological control. BioControl.