terclim by ICS banner
IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2013 9 GiESCO 2013 – Session 5: Vineyard management, yield, quality 9 Leaf removal treatments as affecting Botrytis cinerea occurrence on Pinot gris grapes from north-eastern Italy: results over four years of trials

Leaf removal treatments as affecting Botrytis cinerea occurrence on Pinot gris grapes from north-eastern Italy: results over four years of trials

Abstract

Fruit-zone leaf removal is a technique applied in the vineyards aiming to improve cluster microclimate thus allowing the grapes to achieve better quality and cluster sanity. Some grape varieties, with very compacted clusters (e.g. Pinots) are known to often suffer severe incidence from grey mold (Botrytis cinerea) and/or sour rot. An experimental trial was carried out in Friuli Venezia Giulia (North-Eastern Italy) on Pinot gris throughout the years from 2007 to 2010, comparing different leaf removal machine typologies (leaf plucker; pulsed-air leaf remover) as they influence Botrytis cinerea occurrence at harvest time. The occurrence of Botrytis cinerea was high in 2010, mean in 2008 and very low in 2007 and 2009, related with meteorological season course. On the whole, both machines efficiently reduced the apparition of Botrytis cinerea, but pulsed-air leaf remover demonstrated better performances through more efficient debris removal.

Download the extended abstract
Publication date: 07/09/2026

Issue: GiESCO 2013

Type: Poster

Authors

Paolo Sivilotti1,*, Lorena Butinar1, Melita Sternad Lemut1

1 University of Nova Gorica, Glavni trg 8 – 5271 Vipava, Slovenia

Contact the author*

Keywords

Vitis vinifera, Botrytis cinerea, leaf removal, mechanization, cluster compactness

Tags

GiESCO | GiESCO 2013 | IVES Conference Series

Citation

Related articles…

Risk of late frost events in viticulture – temperature trends, phenological observations and spatial analysis based on digital terrain models in Franconia/Germany

In the course of global warming a general decrease of frost days per year and in spring can be stated. However, in viticulture this matter of fact doesn´t lead to a reduction of the risk of damages to grapevines by late spring frost events.

Read More

Impact of leaf to fruit ratio on grape composition in Merlot grapevines

Adjustments of viticultural practices are required to adapt to climate change. In particular, vineyard management that vary the fruit to leaf area ratio is an important option to maintain and enhance fruit quality.

Read More

Modelling water and sugar flux to developing berries suggests early cessation of sugar accumulation and substantial xylem backflow

A model of the developing berry was constructed with data from published studies as well as 13 varieties grown in Davis, CA (USA).

Read More

Estimating leaf area and leaf area index in VSP trained grapevines under different management systems (Vitis vinifera L. cv. Riesling)

The aim of this study was to validate and implement different non-destructive methods of leaf area and leaf area index (LAI) determination in VSP trained grapevines (Vitis vinifera L. cv. Riesling) in a field trial comparing different management systems (i.e. integrated (GAP) and two different organic (European Union Regulation 834/07) management systems).

Read More

Classification for timing of flowering and veraison of a wide range of Vitis vinifera cultivars with the “GFV” model

In viticulture, the timing of phenology is critical to optimize grape quality potential particularly so in cool climates. Flowering and veraison are key phenological stages for grapevines.

Read More