Apple Replant Disease also known as Sick Soil Syndrome or Specific Replant Disease is a common problem affecting fruit trees planted into a site that previously grew the same (or related) crop, resulting in poor establishment, reduced growth, yield, and quality.

The soil in older orchards have many pathogens and harmful organisms that attack young root systems and retard healthy growth. By disinfecting a new orchard, the soil is protected from many of the pathogens and organisms that cause Replant Disease and the new orchard yields more profits over a longer period.