Grapevine trunk disease pathogen spore detection varies within and around vineyards

M. Sosnowski, M Ayres, R Billones-Baaijens, M Liu, S Savocchia

Research output: Other contribution to conferenceAbstractpeer-review

Abstract

Eutypa (ED) and Botryosphaeria dieback (BD) are grapevine trunk diseases caused by fungal
spore infection via wounds. Burkard spore trapping in vineyards detected ED and BD
pathogens throughout the year, predominantly from autumn to spring, in association with
rainfall. Rotorod spore traps, analysed using qPCR assays, provide a research tool to
understand the variability of spore detection in and around vineyards and the effect of
management practices. In a 17-year-old Shiraz vineyard with substantial dieback symptoms
located at the Waite Campus in Urrbrae, South Australia (SA), spores of both ED and BD
pathogens were detected in five positions in and around the vineyard. ED pathogen spores
were predominant, with an increasing gradient of spore numbers from the north-east
corner to the southern edge of the vineyard, consistent with predominant wind recorded
from the north. Spores were detected at heights from 40-250 cm, with greatest numbers at
cordon height (100 cm).
Original languageEnglish
Number of pages1
Publication statusPublished - Nov 2023
Event24th Australasian Plant Pathology Society Conference 2023: APPS 2023 - National Wine Centre, Adelaide, Australia
Duration: 20 Nov 202324 Nov 2023
https://eventstudio.eventsair.com/apps2023/
https://www.appsnet.org/publications/proceedings/APPS%202023%20Abstracts.pdf (Abstract book)
https://az659834.vo.msecnd.net/eventsairaueprod/production-eventstudio-public/c4b675474ade410cad22646e6cd307d6 (Conference program)

Conference

Conference24th Australasian Plant Pathology Society Conference 2023
Abbreviated titleChange and adaptation
Country/TerritoryAustralia
CityAdelaide
Period20/11/2324/11/23
OtherOn behalf of the organising and scientific committees we are pleased to announce the 2023 Australasian Plant Pathology Society Conference. The conference will be held in Adelaide, South Australia, 20 - 24 November at the National Wine Centre, corner of Botanic & Hackney Roads, Adelaide, South Australia. For those unable to attend face-to-face a virtual platform housing pre-recorded presentations, poster galley and virtual exhibition will be accessible to all delegates post event for 3 months.

The theme for the conference, “Change and Adaptation”, has been chosen to highlight the ever-changing nature of pathogens and the array of emerging technologies being developed to monitor and control disease.

Please join us to stay connected with colleagues, support our emerging scientists, and showcase and access the most recent plant pathology research, either online or in the relaxed and beautiful environment of Adelaide and its parklands.
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