Excessive moisture loss from plants causes severe wilting, shock or plant failure. lt strikes: in winter when drying winds and frozen ground deprive plants of their natural moisture intake; when plant roots are disturbed during transplanting; during periods of drought; or when Christmas trees and greens are cut. WILT-PRUF forms a long lasting protective coating which holds in moisture on plant foliage reducing water loss during plant stress. WILT-PRUF forms a clear, flexible film without interfering with growth. One application will last three to four months.