Featured Research

from universities, journals, and other organizations

Threat To Australian Softwood Plantations

Date:
January 14, 1999
Source:
CSIRO Australia
Summary:
An outbreak of disease among pine trees in America is worrying Australia's plantation managers and forest researchers

An outbreak of disease among pine trees in America is worrying Australia’s plantation managers and forest

Originally from California and Mexico, radiata pine is being attacked in its native home by the three-pronged threat of urbanisation, disease, and feral goats, according to CSIRO’s Dr Colin Matheson.

“Long-term successful breeding of trees, like many agricultural crops, needs access to native wild genetic resources for genes to remain healthy and viable. But because of the risk of bringing the disease pitch canker to Australia, we can no longer import seed from overseas.

“And disease-free stands of the pine overseas are being wiped out by other agencies.

“In California the three natural stands of radiata along the coast have been reduced in recent years by urbanisation and are now being decimated by an outbreak of pitch canker. This will eventually kill many of the trees,” says Dr Matheson.

“On Guadalupe, one of the two Mexican islands where radiata occurs, the species is likely to become extinct as goats eat any seedlings that appear.”

Dr Matheson says that Australia depends heavily and increasingly for its timber supplies on pine plantations, and all species of plantation pines in Australia are susceptible to the disease.

“If pitch canker were to appear here, I believe it would be a very serious problem,” he says.

At a recent international workshop held in Canberra, plantation owners agreed to a range of proposals to boost the genetic conservation effort in Australia and New Zealand. This included further planting of seed collected by CSIRO from the natural stands in America, and imported into Australia and New Zealand in 1978 before pitch canker became a problem.

A workshop organised by CSIRO in California concentrated on how pitch canker attacks the tree and how it is spread.

Dr Michael Devey of CSIRO Forestry and Forest Products describes the symptoms of the disease: “Initially dead tips over the crown, then resin impregnation of the wood and eventually resin bleeding from the stem followed by death of the tree.“We have proposed a project to study the genetics of resistance and to find resistant trees”, he says.

The pitch canker project will also boost conservation efforts because Californian trees will be tested along with elite trees from other countries and seeds from Californian trees resistant to pitch canker will be made available there.

Growers of softwoods have placed emphasis on breeding for greater productivity and disease resistaance, particularly through the efforts of the Southern Tree Breeding Association and State Forests of New South Wales for radiata pine and the Queensland Forest Research Institute for other tropical pines in Queensland.

Logs from radiata plantations are currently worth about $400 million a year. The benefits of breeding were estimated as about $32 million a year in 1995 in wood volume terms alone, and could rise to more than $120 million a year after 2000. It is hoped that testing for resistance to pitch canker in California will allow resistant varieties to be incorporated into Australian breeding programs.

More information :E-mail: Mick.Crowe@ffp.csiro.au


Story Source:

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


Cite This Page:

CSIRO Australia. "Threat To Australian Softwood Plantations." ScienceDaily. ScienceDaily, 14 January 1999. <www.sciencedaily.com/releases/1999/01/990113200340.htm>.
CSIRO Australia. (1999, January 14). Threat To Australian Softwood Plantations. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/1999/01/990113200340.htm
CSIRO Australia. "Threat To Australian Softwood Plantations." ScienceDaily. www.sciencedaily.com/releases/1999/01/990113200340.htm (accessed July 24, 2014).

Share This




More Plants & Animals News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Dogs Appear To Become Jealous Of Owners' Attention

Dogs Appear To Become Jealous Of Owners' Attention

Newsy (July 23, 2014) A U.C. San Diego researcher says jealousy isn't just a human trait, and dogs aren't the best at sharing the attention of humans with other dogs. Video provided by Newsy
Powered by NewsLook.com
Professor Creates Site Revealing Where People's Cats Live

Professor Creates Site Revealing Where People's Cats Live

Newsy (July 23, 2014) ​It's called I Know Where Your Cat Lives, and you can keep hitting the "Random Cat" button to find more real cats all over the world. Video provided by Newsy
Powered by NewsLook.com
Stone Fruit Listeria Scare Causes Sweeping Recall

Stone Fruit Listeria Scare Causes Sweeping Recall

Newsy (July 22, 2014) The Wawona Packing Company has issued a voluntary recall on the stone fruit it distributes due to a possible Listeria outbreak. Video provided by Newsy
Powered by NewsLook.com
Michigan Plant's Goal: Flower and Die

Michigan Plant's Goal: Flower and Die

AP (July 22, 2014) An 80-year-old agave plant, which is blooming for the first and only time at a University of Michigan conservatory, will die when it's done (July 22) Video provided by AP
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:
from the past week

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