Protozoa Diderma chondrioderma (de Bary & Rostaf.) Kuntze, Unknown Negligible: D. chondrioderma is a 1 1898 slime mould and was reported in association with a grapevine stem. Unlisted (s14) Scarcity of reports of association or damage to grapevines. Viruses/Viroids Apscaviroid: Australian grapevine viroid Medium/Low: Long distance Negligible: AGVd has not been 1 spread occurs via infected reported as having any disease AGVd propagation material and local effects in grapevines. AGVd Permitted s11 – dissemination occurs via produces little or no obvious disease mechanical means and through symptoms. seed . Medium/Low: Long distance High: Mixed infection of GYSVd-1 or Apscaviroid: grapevine yellow speckle viroid 4 (GYSVd) strain, 1 spread occurs via infected GYSVd-2 and grapevine fanleaf propagation material and local virus (currently not present in WA) GYSVd-1 dissemination occurs via causes vein banding that has a Prohibited s12 (C1) mechanical means, by grafting detrimental effect on the yield of – and abrasion, and through seed . certain varieties .
Protozoa Diderma chondrioderma (de Bary & Rostaf.) Kuntze, 1898 Unlisted (s14) Unknown Negligible: D. chondrioderma is a slime mould and was reported in association with a grapevine stem. Scarcity of reports of association or damage to grapevines. 1 Viruses/Viroids Apscaviroid: Australian grapevine viroid AGVd Permitted – s11 Medium/Low: Long distance spread occurs via infected propagation material and local dissemination occurs via mechanical means and through seed . Negligible: AGVd has not been reported as having any disease effects in grapevines. AGVd produces little or no obvious disease symptoms. 1 Apscaviroid: grapevine yellow speckle viroid (GYSVd) strain, 1 GYSVd-1 Prohibited – s12 (C1) Medium/Low: Long distance spread occurs via infected propagation material and local dissemination occurs via mechanical means, by grafting and abrasion, and through seed . High: Mixed infection of GYSVd-1 or GYSVd-2 and grapevine fanleaf virus (currently not present in WA) causes vein banding that has a detrimental effect on the yield of certain varieties . 4
WA%20Viticulture%20Industry%20Biosecurity%20Plan%20V1.docx