RETRO is a unique formulation of DEPRO 1299, a blend of organic coating removal agents combined with a best-in-class surfactant complex designed to provide the golf course superintendent with a broad, proactive approach to address the cause and problems associated with soil water repellency. RETRO represents a new concept of deploying complementary technologies directed at both helping to correct the build-up of water repellent organic coatings on sand particles (the cause of water repellency) and providing relief from localized dry spots, poor infiltration of applied water and non-uniform water movement into the root zone (the symptoms of water repellency).

The standard practice for treating water-repellent sand root zones is the systematic application of non-ionic soil surfactants. The use of block copolymers have become the preferred surfactant treatment chemistries. However, it should be remembered that these treatments are used to address the symptoms of water repellency – localized dry spot, infiltration and water movement problems. Addressing the cause of water repellency – the build up of water repellent organic coatings -- will require newer technology. That technology is available now! RETRO Soil Water Repellency Management System.

To entirely remove humic substances from the soil ecosystem would not be beneficial, inasmuch as decomposition of organic materials are an essential component of a healthy soil. However, in highly managed greens and tees, controlling organic matter build up on soil particles is particularly important to maintain adequate infiltration, hydration and drainage. And this is the designed purpose for RETRO – providing the golf course superintendent with a soil management tool to keep the progressive nature of water repellency under control.

The use of RETRO poses no additional management resources than those associated with surfactant applications used to treat symptoms of water repellency in soils. When used on a monthly basis, it’s best-in-class non-ionic surfactants will overcome hydrophobic conditions and promote a consistent and effective pattern of hydration and re-hydration of the soil profile. Following its use in a well-designed rootzone management program, turfgrass managers should expect:

• Relief from localized dry spots and water repellent soils
• Uniform movement of water through the rootzone
• Improved drainage
• Healthier roots and increased stress tolerance
• Enhanced water use efficiency