An Evaluation of Arbotect and Lignasan Trunk Injections as Potential Treatments for Oak Wilt in Live Oaks

Abstract

Arbotect-20S® (2-(2)thiazolyl) benzimidazole) and Lignasan® (methyl-2-benzimidazol carbamate phosphate) were mixed with low volumes of water and injected into the xylem of live oaks in an effort to stop or prevent oak wilt (caused by Ceratocystis fagacearum ) development. Healthy trees near the advancing edge of oak wilt infection centers were not protected by fungicide treatments. Some of the infected trees showed an initial slowdown in the rate of tree degeneration after injections, but after 15 months there was no significant difference in treated and untreated trees.