Featured Research

from universities, journals, and other organizations

Turkish Plant Oils Are Lethal To Vegetable Pest

Date:
January 12, 2005
Source:
USDA / Agricultural Research Service
Summary:
Turnip aphids beware! Scientists at the Agricultural Research Service and at Anadolu University in Eskisehir, Turkey, have found that oils from many Turkish medicinal herbs are deadlier to the aphid pests than those currently used in biological pesticides.

Adult (center) and immature turnip aphids.
Credit: Image courtesy of Alton N. Sparks, Jr., The University of Georgia, http://www.insectimages.org

Turnip aphids beware! Scientists at the Agricultural Research Service and at Anadolu University in Eskisehir, Turkey, have found that oils from many Turkish medicinal herbs are deadlier to the aphid pests than those currently used in biological pesticides.

Related Articles


Studies at two ARS laboratories in Mississippi--the Natural Products Utilization Laboratory in Oxford and the Small Fruit Research Station in Poplarville--found that essential oils from 17 plant species are more toxic to turnip aphids (Lipaphis pseudobrassicae) than oils of peppermint (Mentha piperita) and rosemary (Rosmarinus officinalis), which are used in the United States as organic pesticides and in broad-spectrum insecticides.

The researchers evaluated essential oils from 25 plant species for toxicity to turnip aphids, which attack collards, mustard, broccoli, cabbage, radish, tomato and zucchini, among other vegetable crops throughout the southeastern United States.

The aromatic essential oils help plants attract or repel insects and fend off heat, cold and bacteria. Obtained from air-dried flowering plants, the oils are used in the pharmaceutical, agrochemical, cosmetics and food industries. Because their bioactive compounds are potentially toxic to insects and mites but relatively safe to humans and wildlife, they've recently become the focus of developers of ecologically safe pesticides.

Plant pathologist David Wedge at Oxford and horticulturist James Spiers and entomologist Blair Sampson at Poplarville, along with Turkish colleagues led by chemist Nurhayat Tabanca, identified essential oils--many from wild plants--that achieve 100-percent kill rates at much lower concentrations than peppermint and rosemary oil.

The researchers found that species of Bifora, Satureja and Salvia are the more promising botanical sources of compounds for new pesticides targeting aphids. The scientists were most impressed by the wild bishop plant, Bifora radians. It yielded the least essential oil, but that oil was by far the most toxic to the aphids.

According to Wedge, future efforts may include collaborations with other universities in Turkey and technology transfer of advanced bioassay techniques for agrochemical research.

ARS is the U.S. Department of Agriculture'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. "Turkish Plant Oils Are Lethal To Vegetable Pest." ScienceDaily. ScienceDaily, 12 January 2005. <www.sciencedaily.com/releases/2005/01/050104110330.htm>.
USDA / Agricultural Research Service. (2005, January 12). Turkish Plant Oils Are Lethal To Vegetable Pest. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2005/01/050104110330.htm
USDA / Agricultural Research Service. "Turkish Plant Oils Are Lethal To Vegetable Pest." ScienceDaily. www.sciencedaily.com/releases/2005/01/050104110330.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Kids Die While Under Protective Services

Kids Die While Under Protective Services

AP (Dec. 18, 2014) As part of a six-month investigation of child maltreatment deaths, the AP found that hundreds of deaths from horrific abuse and neglect could have been prevented. AP's Haven Daley reports. (Dec. 18) Video provided by AP
Powered by NewsLook.com
When You Lose Weight, This Is Where The Fat Goes

When You Lose Weight, This Is Where The Fat Goes

Newsy (Dec. 17, 2014) Can fat disappear into thin air? New research finds that during weight loss, over 80 percent of a person's fat molecules escape through the lungs. Video provided by Newsy
Powered by NewsLook.com
The Hottest Food Trends for 2015

The Hottest Food Trends for 2015

Buzz60 (Dec. 17, 2014) Urbanspoon predicts whicg food trends will dominate the culinary scene in 2015. Mara Montalbano (@maramontalbano) has the story. Video provided by Buzz60
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