Featured Research

from universities, journals, and other organizations

California Pistachio Industry Threatened By Potentially Devastating Disease

Date:
January 12, 2004
Source:
American Phytopathological Society
Summary:
The California pistachio industry produced approximately 300 million pounds of pistachios in 2002 and continues to grow each year at an impressive rate. However, plant pathologists with The American Phytopathological Society (APS) say a serious and devastating disease could put a definite halt to this relatively young industry.

Developing infection by B. dothidea through a lenticel in a mature pistachio fruit. (American Phytopathological Society)

St. Paul, Minn. (January 9, 2004) – The California pistachio industry produced approximately 300 million pounds of pistachios in 2002 and continues to grow each year at an impressive rate. However, plant pathologists with The American Phytopathological Society (APS) say a serious and devastating disease could put a definite halt to this relatively young industry. According to Themis J. Michailides, plant pathologist at the University of California, Davis, this disease, panicle and shoot blight of pistachio, was first discovered in 1984 in a commercial orchard in the northern Sacramento Valley and has since become a disease of major importance for pistachios grown in California. "Yield losses from 40 to 100 percent were not uncommon in the orchards where the disease was discovered," said Michailides. "The destruction caused by this disease makes panicle and shoot blight the most serious threat to pistachio trees grown in California," he said.

Panicle and shoot blight is caused by Botryosphaeria dothidea, a fungus that causes diseases that are aggressive and very difficult to control. According to Michailides, the pistachio industry in California is based on a cultivar that is very susceptible to this particular fungus. "Because of the California pistachio's susceptibility to this fungus, panicle and shoot blight has the potential to reach epidemic levels in pistachio orchards in only a few years," he said.

To prevent such epidemics from occurring, and since some resistance to the disease exists in the present Pistacia germplasm, breeders need to work closely with plant pathologists to develop disease resistant varieties of the pistachio tree. In addition, Michailides also recommends growers remain proactive in their efforts to keep their orchards free from infection of the pathogen by conducting regular surveys, sanitation by pruning of possible infections, controlling insects, and following fungicide programs that were shown to control panicle and shoot blight.

More on this subject is available in this month's APS feature article on the APS website at http://www.apsnet.org. The American Phytopathological Society (APS) is a non-profit, professional scientific organization dedicated to the study and management of plant disease with 5,000 members worldwide.


Story Source:

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


Cite This Page:

American Phytopathological Society. "California Pistachio Industry Threatened By Potentially Devastating Disease." ScienceDaily. ScienceDaily, 12 January 2004. <www.sciencedaily.com/releases/2004/01/040112071931.htm>.
American Phytopathological Society. (2004, January 12). California Pistachio Industry Threatened By Potentially Devastating Disease. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2004/01/040112071931.htm
American Phytopathological Society. "California Pistachio Industry Threatened By Potentially Devastating Disease." ScienceDaily. www.sciencedaily.com/releases/2004/01/040112071931.htm (accessed July 25, 2014).

Share This




More Plants & Animals News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How to Make Single Serving Smoothies: Howdini Hacks

How to Make Single Serving Smoothies: Howdini Hacks

Howdini (July 24, 2014) Smoothies are a great way to get in lots of healthy ingredients, plus they taste great! Howdini has a trick for making the perfect single-size smoothie that will save you time on cleanup too! All you need is a blender and a mason jar. Video provided by Howdini
Powered by NewsLook.com
Boy Attacked by Shark in Florida

Boy Attacked by Shark in Florida

Reuters - US Online Video (July 24, 2014) An 8-year-old boy is bitten in the leg by a shark while vacationing at a Florida beach. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
Powered by NewsLook.com
Tyrannosaur Pack-Hunting Theory Aided By New Footprints

Tyrannosaur Pack-Hunting Theory Aided By New Footprints

Newsy (July 24, 2014) A new study claims a set of prehistoric T-Rex footprints supports the theory that the giant predators hunted in packs instead of alone. 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:
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