Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/65119
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Evaluation of 'alternative' materials to sulfur and synthetic fungicides for control of grapevine powdery mildew in a warm climate region of Australia |
Author: | Savocchia, S. Mandel, R. Crisp, P. Scott, E. |
Citation: | Australasian Plant Pathology, 2011; 40(1):20-27 |
Publisher: | Springer |
Issue Date: | 2011 |
ISSN: | 0815-3191 1448-6032 |
Statement of Responsibility: | S. Savocchia, R. Mandel, P. Crisp, E. S. Scott |
Abstract: | The efficacy of 'alternative' materials against powdery mildew (Erysiphe necator) was evaluated on Vitis vinifera cvs Chardonnay and Cabernet Sauvignon in a warm climate region of New South Wales, Australia. In the first season, sulfur, milk, whey, potassium bicarbonate (Ecocarb) and a mixture of potassium bicarbonate and botanical oils (Synertrol Horti Oil) alternated with whey reduced the severity of powdery mildew on Chardonnay bunches at harvest compared with untreated vines, however only sulfur provided commercially acceptable fruit at harvest with a mean disease severity of 4.2%. In the second season, none of the treatments, including sulfur, provided commercially acceptable control of powdery mildew on Chardonnay. The mean severities of powdery mildew on Cabernet Sauvignon were relatively low, with alltreatments providing comparable control to sulfur in the second season. In the third season, spray programs incorporating the 'alternative' materials and sulfur were evaluated on Chardonnay by targeting specific phenological stages of grapevine growth. Programs that included sulfur from bud burst toflowering provided better disease control than those that included a mixture of potassium bicarbonate and botanical oils applied at the same stages. This highlights the importance of effective early season control of this disease on susceptible cultivars such as Chardonnay. Analysis of berry weight, pH, total soluble solids and titratable acidity of juices revealed no negative impact of the treatments. © Australasian Plant Pathology Society Inc. 2010. |
Keywords: | Organic viticulture Soft fungicides |
Rights: | © Australasian Plant Pathology Society Inc. 2010 |
DOI: | 10.1007/s13313-010-0009-7 |
Published version: | http://dx.doi.org/10.1007/s13313-010-0009-7 |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 5 |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.