Blackline of English walnut trees traced to graft-transmitted virus
oleh: S Mircetich, J Refsguard, M Matheron
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1980-11-01 |
Deskripsi
Studies show that blackline can be spread from diseased to healthy trees by budding or grafting as well as by natural means.