Environmental Engineering Reference
In-Depth Information
reapplied before hydrophobicity returns and turf sustains severe dam-
age. Unfortunately the problem of localized dry spots is chronic, and
once it appears in a specific location, it usually persists for many years.
Wetting agents are also effective in irrigation of turfs with substantial
thatch build-up. Thatch is often difficult to wet and under regular irriga-
tion can result in increased surface run-off and poor soil infiltration.
Addition of wetting agents improves water penetration through the
thatch, making irrigation and wetting from precipitation more efficient
and uniform.
Wetting agents are also included in the formulation of pesticides.
Their influence on efficacy of pesticides will be discussed in Chapter 11.
