Featured Research

from universities, journals, and other organizations

Drop Of White The Right Stuff For Vines

Date:
September 12, 2002
Source:
Adelaide University
Summary:
MILK and other dairy products can be as effective as some conventional fungicides in controlling powdery mildew in vineyards, according to new research by the University of Adelaide in Australia.

MILK and other dairy products can be as effective as some conventional fungicides in controlling powdery mildew in vineyards, according to new research by the University of Adelaide in Australia.

Related Articles


Peter Crisp from the University's Department of Applied and Molecular Ecology is examining novel control methods for powdery mildew for his PhD, and has already attracted interest from the wine industry with his preliminary findings. Powdery mildew is a disease which attacks grapevine leaves and fruit, and currently costs the Australian wine industry about $30 million a year, mainly in control measures.

"A lot of people are already using milk on their household potplants to make the leaves shiny - but now its benefits are being formally recognised," Mr Crisp says. "For the first part of my study, I examined 30 or 40 different treatments, some of them "snake oils" or "old wives' tales", that are in circulation for treating powdery mildew. Unsurprisingly, most of them did not provide good control, but milk and whey, and also a canola oil-based product, stood out as being comparable to current powdery mildew treatments."

The most successful treatments Mr Crisp has trialled so far are milk and whey (the liquid waste from cheese production). The milk is diluted to 1/10th of its normal strength, and the whey 1/3rd, and the solutions sprayed onto the grapevine leaves and immature grapes. The solutions work well on most grape cultivars and, importantly, don't appear to affect the quality of the grapes and hence the finished wine product, although this needs to be evaluated experimentally. The success of milk as a control of powdery mildew on grapevines supports earlier research on zucchini in Brazil.

"Making sure that the quality is not diminished is very important for the commercial wineries - obviously they don't want to put anything on their grapes which will reduce the quality of their wines, and subsequently reduce the price and reputation the wines can achieve," Mr Crisp says.

The implications of Mr Crisp's research are biggest for organic winemakers, those who don't currently use synthetic fungicides and herbicides for disease and pest control.

"Sulphur is the main form of fungicide used against powdery mildew, and is used in most organic and conventional wineries, with the conventional vineyards using synthetic fungicides as well. Sulphur has been used for 150 years and is pretty effective, but it may in the future be restricted for organic growers to use, and they'll need to find another way which will be cheap and efficient," Mr Crisp says.

Several organic wineries are already involved with Mr Crisp's research, notably Temple Bruer in Langhorne Creek. Temple Bruer Wines CEO David Bruer was former Head of the Oenology Department at the University's Roseworthy campus before becoming a full-time vigneron and has generously allowed Mr Crisp to use a portion of his vineyard for trials. Other wineries involved in Mr Crisp's project include Glenara and Mountadam.


Story Source:

The above story is based on materials provided by Adelaide University. Note: Materials may be edited for content and length.


Cite This Page:

Adelaide University. "Drop Of White The Right Stuff For Vines." ScienceDaily. ScienceDaily, 12 September 2002. <www.sciencedaily.com/releases/2002/09/020912071438.htm>.
Adelaide University. (2002, September 12). Drop Of White The Right Stuff For Vines. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2002/09/020912071438.htm
Adelaide University. "Drop Of White The Right Stuff For Vines." ScienceDaily. www.sciencedaily.com/releases/2002/09/020912071438.htm (accessed October 25, 2014).

Share This



More Plants & Animals News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Black Bear Cub Goes Sunday Shopping

Black Bear Cub Goes Sunday Shopping

Reuters - Light News Video Online (Oct. 23, 2014) Price check on honey? Bear cub startles Oregon drugstore shoppers. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins