In the work presented herein, we analyze efficacy of three basic substances that comply with European Regulation (EC) No 1107/2009, namely chitosan, horsetail (Equisetum arvense L.) and nettle (Urtica dioica L.), for control grapevine trunk diseases (GTDs) in organic farming. The E. U. aqueous extracts, prepared according to SANCO/12386/2013 SANTE/11809/2016, have been studied by gas chromatogr...

Fungi that cause grapevine trunk diseases, including Diplodia seriata, Eutypa lata, Neofusicoccum parvum, and Phaeomoniella chlamydospora, all colonize woody tissues, but lesions develop to different extents. Such variation is thought correspond fungal virulence, it may also reflect host metabolic responses limit colonization. From the stems of potted Vitis vinifera ‘Cabernet-Sauvignon’ in gree...

English walnut (Juglans regia) has become an important crop in Chile, representing 11.5% of the total area fruit trees, surpassed only by grapevine. As Chilean industry rapidly expands, young orchards are at risk from emergence new fungal diseases. Botryosphaeriaceae and Diaporthaceae fungi have been recognized as main causes wood diseases walnut, with symptoms dieback, canker, blight. In winte...

Many fungal pathogens are associated with grapevine trunk diseases (GTDs), which cause important yield and economic losses in grape production. There no effective control methods against GTDs once plants infected, so research is aimed at preventive measures to avoid infections nurseries vineyards. Inhibitory activities of the phenolic compounds eugenol, epigallocatechin–3–O–gallate (EGCG) thymo...

Botryosphaeria dieback is a fungal grapevine trunk disease that currently represents a threat for viticulture worldwide because of the important economical losses due to reduced yield of affected plants and their premature death. Neofusicoccum parvum and Diplodia seriata are among the causal agents. Vine green stems were artificially infected with N. parvum or D. seriata at the onset of three d...