Is not justified by the damage they may cause. On the other hand, the book's ratherĮxtensive elaboration of some birds and mammals For instance, Fusariumĭescribed by Noviello & Snyder in 1962, mayĬause persistent problems in the cultivation of Several potentially important diseases are left unmentioned. Some of the more recent literature is not mentioned, for instance that of McPartland, who published on hemp diseases in 19, including the description of Phomopsis ganjae, a new species.

Much of the older literature is lacking, such as the publications of Ghillini, from 19, which described a number of fungal and bacterial diseases on hemp in Italy. The literature survey contains only part of the information available on hemp diseases, and the criteria upon which they based their selections are not clear. The control measures described include a confusing mixture of present and potential (e.g., biological management) methods. However, these descriptions and some of the plates of pest and disease organisms are insufficient for identification. The descriptions are concise and apparently meant for those who are not educated in plant pathology. Each organism isįollowed by a short synonymy and a description,įollowed by some recommendations for control. (20), birds (9), mammals (4), plant parasitic A number of diseaseĪnd pest species are treated: viruses (4),īacteria (2), fungi (16), nematodes (2), insects Gutberlet & Karus report, in the German language, on the pests and diseases of hemp described in the literature. Although literature surveys cannot predict diseases, they assist one in being aware of potential problems. Uncertainty in the introduction of a new crop onĪ wide scale is the unavoidable arousal of pestsĪnd diseases.

Institut für politische und ökologische Innovation

Hemp diseases and pests