Confidence Starts Before Planting: Why Soil Moisture Is the Most Overlooked Factor in Fumigation Performance

When conversations around soil fumigation happen, they often focus on product selection and application timing. But one of the most important drivers of performance is often underestimated or overlooked entirely: Soil moisture. Before a product can perform, it must move through the soil effectively. And moisture is what makes that possible.

Moisture isn’t optional, it’s foundational. 

Research and field experience are making one thing clear: Proper moisture content is essential. Ideally, you want to achieve up to 80% soil moisture throughout the soil profile. 

This isn’t just a recommendation; it’s a performance driver. 

Without enough moisture: 

  • Movement is limited 
  • Distribution is inconsistent 
  • Results can drop off 

What the data shows 

Field work comparing different moisture levels reinforces how big of a role this plays: Average readings at 80% soil moisture were higher than in 50% soil moisture. 

That gap matters. 

For retailers and advisors, that means: 

  • Two applications using the same product can produce very different results 
  • And the difference isn’t always the product, it’s the conditions 

Soil fumigants don’t move on their own. Moisture is what carries the product 

They need: 

  • A vehicle 
  • A pathway 
  • The right environment 

And moisture provides all three. 

It helps: 

  • Move the product through the soil profile 
  • Improve contact with pests 
  • Support more uniform distribution 

The reality in the field: It takes more effort 

This is where real-world insight matters, especially for planning conversations. 

“We decided to go the extra effort… to get moisture content in the 65–75% range… the results we’ve been seeing greatly outweigh what we would normally do.” Greg Story, Onion Grower, Story Farms 

For crop advisors  

Moisture should be part of the conversation before application ever happens. Ask: 

  • Is the soil profile adequately hydrated? 
  • Will moisture be maintained leading up to application? 
  • Does the grower manage it effectively? 

Because by the time the product is applied, it’s too late to fix moisture conditions. 

Performance doesn’t start with application; it starts with the conditions in the soil. And among those conditions, moisture may be the most important and the most underestimated.

Confidence starts before planting.

Sectagon