Course: Sanitation & Sterilization in Hydroponics
Section 1: The Biology of Sterility
Lesson 2: Pathogen Pathways
Understanding Pathogen Pathways is critical for establishing a bio-secure facility. While oxidation can clean a system, knowing how pathogens re-enter is the only way to prevent constant re-infection. In this lesson, we trace the physical and biological routes through which disease migrates—from swimming spores in irrigation lines to insect vectors acting as biological syringes.
Explain the mechanics of waterborne migration via zoospores.
Identify high-risk tools and contact points for mechanical transmission.
Evaluate the risks of airborne fungal inoculum in enclosed environments.
Define the relationship between insect vectors and vascular infections.
Formulate a management plan for the “Biological Vacuum” effect.
Assess environmental factors that encourage pathogen travel.
Waterborne Zoospores
MigrationHow Pythium and Phytophthora migrate through irrigation lines.
Mechanical Transmission
ContaminationThe role of dirty tools and hands in spreading viral loads.
Airborne Inoculum
EnvironmentalFungal spores and the risks of poor greenhouse ventilation.
Insect Vectors as Syringes
BiologicalHow aphids and thrips inject pathogens directly into the xylem.
The Biological Vacuum
ManagementWhy nature rushes to fill a sterile environment and how to manage it.
