Deciduous fruit and nut trees: Root-knot nematode on peach and root-lesion nematode on walnut cause serious problems for California orchardists
oleh: B Lownsbery, E Serr, C Hansen
| Format: | Article |
|---|---|
| Diterbitkan: | University of California Agriculture and Natural Resources 1959-09-01 |
Deskripsi
Nematodes impair the root systems of trees by releasing toxins and by introducing secondary bacteria and fungi. Sometimes root symptoms make nematode activity evident, but in many instances these symptoms do not differ from those of other root-debilitating agents.