For the next three days, the entire settlement worked under Elias and Maya's direction. They constructed crude, hand-cranked wind machines from salvaged car parts to keep air moving through the grain, preventing dew from settling. They dug deep drainage ditches to lower the soil moisture, and applied a thick layer of alkaline wood ash to the base of the plants to alter the surface pH, creating a hostile environment for the fungal spores.
"It's not about killing it anymore, Maya," Elias said, pointing to a diagram of the disease triangle: Pathogen, Host, and Environment. "The Fifth Edition teaches us that disease only happens when all three intersect perfectly. We can't change the host—the wheat is already planted. We can't eliminate the pathogen—it's in the air, the water, everywhere. So, we have to attack the environment." Plant Pathology, Fifth Edition
"No, but we can control the microclimate of the field," Elias said, a spark of his old academic fervor returning. "Look here, page 415. Spore germination requires a specific leaf wetness duration and temperature range. If we disrupt the humidity at the canopy level, we stop the spores from firing their infection pegs." For the next three days, the entire settlement