Featured Research

from universities, journals, and other organizations

Mouse-Ear Can Be Defeated

Date:
November 26, 2004
Source:
USDA / Agricultural Research Service
Summary:
Pecan growers battling a tree ailment called "mouse-ear" can now rest assured that help is on the way, thanks in part to Agricultural Research Service scientists who discovered that the condition is caused by a nickel deficiency in the plant.

Pecans.
Credit: Photo by Scott Bauer / Courtesy of USDA / Agricultural Research Service

Pecan growers battling a tree ailment called "mouse-ear" can now rest assured that help is on the way, thanks in part to Agricultural Research Service scientists who discovered that the condition is caused by a nickel deficiency in the plant.

The ARS discovery has led to a commercial fertilizer application to control mouse-ear. This growth and development abnormality, recognized as "little-leaf" in other crops, is becoming increasingly common in second-generation pecan orchards where new trees are planted.

Nickel deficiency was pinpointed as the problem by research leader Bruce Wood and plant pathologists Charles Reilly and Andrew Nyczepir at ARS' Southeastern Fruit and Tree Nut Research Laboratory in Byron, Ga.

A foliar fertilizer, called NICKEL PLUS, has been developed by NIPAN, LLC, of Valdosta, Ga. It has been approved by the Georgia Department of Agriculture as a fertilizer nutrient that can correct nickel deficiency problems in pecan and river birch trees. Wood assisted with determining the treatment formulation, which will be available for distribution next spring.

Wood and his colleagues saw there was a lack of nickel uptake by the plants even if there was an abundance of nickel in the soil. Heavy metals such as zinc, manganese, iron, cadmium and copper compete with nickel for uptake channels in the feeder roots of the pecan tree. Additionally, lighter metals such as magnesium also act to indirectly limit nickel uptake. It was found that nickel deficiency had usually been induced by excessive accumulation of other elements due to decades of fertilizer applications.

The severe form of mouse-ear most commonly occurs in the southeastern Georgia sector of the U.S. pecan belt, but is also found throughout much of the Gulf Coast Coastal Plain.

The anomaly first appears on the spring flush of shoots. A severe case of mouse-ear is corrected by a timely foliar application of nickel.

ARS is the USDA's chief scientific research agency.


Story Source:

The above story is based on materials provided by USDA / Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA / Agricultural Research Service. "Mouse-Ear Can Be Defeated." ScienceDaily. ScienceDaily, 26 November 2004. <www.sciencedaily.com/releases/2004/11/041124161620.htm>.
USDA / Agricultural Research Service. (2004, November 26). Mouse-Ear Can Be Defeated. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2004/11/041124161620.htm
USDA / Agricultural Research Service. "Mouse-Ear Can Be Defeated." ScienceDaily. www.sciencedaily.com/releases/2004/11/041124161620.htm (accessed September 22, 2014).

Share This



More Plants & Animals News

Monday, September 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: San Diego Zoo Welcomes Cheetah Cubs

Raw: San Diego Zoo Welcomes Cheetah Cubs

AP (Sep. 20, 2014) The San Diego Zoo has welcomed two Cheetah cubs to its Safari Park. The nearly three-week-old female cubs are being hand fed and are receiving around the clock care. (Sept. 20) Video provided by AP
Powered by NewsLook.com
Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Jury Delivers Verdict in Salmonella Trial

Jury Delivers Verdict in Salmonella Trial

AP (Sep. 19, 2014) A federal jury has convicted three people in connection with an outbreak of salmonella poisoning five years ago that sickened hundreds of people and was linked to a number of deaths. (Sept. 19) 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