Canadian Forest Service Publications
Control of needle cast of Douglas-fir by antibiotics. 1963. Weir, L.C. The Forestry Chronicle 39(2): 205-211.
Issued by: Pacific Forestry Centre
Catalog ID: 23880
Availability: PDF (download)
Phyto-actin, Actidione, and chemical derivatives of Actidione were applied as stem sprays and as foliar sprays to Douglas fir trees infected by Rhabdocline pseudotsugae Syd. All materials provided a reduction in infection level although some trees exhibited little response. Phytotoxicity was evidenced by tree mortality and needle loss. Actidione was shown to move systematically in stem-treated Douglas fir.