Low-volume Scaffold Branch Irrigation for Citrus Freeze Protection

Abstract Scaffold branch irrigation significantly enhanced tree survival and decreased the percentage of canopy that was killed on young Washington navel orange ( Citrus sinensis) and Owari satsuma ( Citrus unshiu ) trees subjected to — 8.9°C during a 1985 freeze. Scaffold branch irrigation has shown considerable potential as a method of freeze protection for Louisiana citrus producers.