The Disease Triangle AgriBio Systems

The Disease Triangle

Plant disease only occurs when three conditions align simultaneously a susceptible host, a virulent pathogen, and a favorable environment. In regenerative agriculture, we manage all three sides of this triangle by building soil biology, strengthening plant immunity, and creating conditions where disease simply cannot take hold.

Disease Triangle Host Plant Pathogen Environment Disease
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The Disease Triangle

Epidemiological Model

The Disease Triangle is a foundational model in plant pathology. It illustrates that disease does not occur simply because a pathogen is present all three elements must overlap at the same time and place.

Click on any segment of the triangle, or use the buttons below, to explore each component and understand how it influences plant health outcomes.

Strengthen the Host

Soil biology is the foundation of plant immunity. Mycorrhizal networks, beneficial bacteria, and a balanced mineral profile delivered through a living soil web produce plants that are inherently more resistant before a pathogen ever arrives.

Suppress the Pathogen

A diverse, active soil microbiome is nature's most effective disease suppression system. Microbial competition, predation, and naturally produced antibiotics keep pathogen populations in check without chemical intervention or resistance risk.

Modify the Environment

Healthy soil structure, high organic matter, and diverse crop systems create conditions that are unfavorable for disease spread addressing the environmental side of the triangle from the ground up.