Featured Research

from universities, journals, and other organizations

Biocontrol For Wide-Ranging Thrips

Date:
May 12, 2009
Source:
USDA/Agricultural Research Service
Summary:
A pest with a voracious appetite may have met its match in a predatory mite being evaluated as a biocontrol agent.

The chilli thrips attacks 150 crops.
Credit: Photo courtesy of Lance S. Osborne, Mid-Florida Research & Education Center

A pest with a voracious appetite may have met its match in a predatory mite being evaluated as a biocontrol agent by Agricultural Research Service (ARS) scientists in Fort Pierce, Fla. in collaboration with University of Florida researchers.

The chilli thrips is an invasive pest that feeds on leaves, turns them brown, kills new growth and attacks up to 150 crops, including peppers, strawberries, tomatoes, peanuts, cotton and a variety of ornamentals.

Detected in Palm Beach County, Fla. in 2005, it has spread to 24 Florida counties and parts of Texas, damaging roses and other ornamentals in both states. Left unchecked, it could reach west to California and north along the Pacific Coast to Canada, causing losses of up to $3.8 billion annually.

Pesticides are effective, but the chilli thrips may develop resistance with repeated treatments, and pesticides are not an option for organic nurseries and gardeners, according to entomologist Cindy L. McKenzie, at the ARS U.S. Horticultural Research Laboratory in Fort Pierce.

Researchers at Fort Pierce and the University of Florida have turned to two mites, Neoseiulus cucumeris and Amblyseius swirskii, which have been used commercially to combat other pests since at least 2005. The researchers put 30 adult chilli thrips on ornamental pepper plants in greenhouse and outdoor settings, waited a week for thrips larvae to hatch and, in separate treatments, released 30 mites of each species on the plants. They checked the plants weekly for four weeks.

Their results, published in Biological Control, showed that the mites--particularly A. swirskii--significantly reduced the number of thrips. A. swirskii left no more than one thrips insect per leaf. That compared with up to 60 thrips larva found on leaves of untreated pepper plants. The work was funded in part by the American Floral Endowment and the Floriculture and Nursery Research Initiative.

The researchers have set up a chilli thrips website for gardeners and commercial growers at http://www.mrec.ifas.ufl.edu/lso/thripslinks.htm.


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. "Biocontrol For Wide-Ranging Thrips." ScienceDaily. ScienceDaily, 12 May 2009. <www.sciencedaily.com/releases/2009/05/090502083628.htm>.
USDA/Agricultural Research Service. (2009, May 12). Biocontrol For Wide-Ranging Thrips. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2009/05/090502083628.htm
USDA/Agricultural Research Service. "Biocontrol For Wide-Ranging Thrips." ScienceDaily. www.sciencedaily.com/releases/2009/05/090502083628.htm (accessed October 22, 2014).

Share This



More Plants & Animals News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Cadaver Dogs Aid Search for More Victims of Suspected Indiana Serial Killer

Cadaver Dogs Aid Search for More Victims of Suspected Indiana Serial Killer

Reuters - US Online Video (Oct. 21, 2014) Police in Gary, Indiana are using cadaver dogs to search for more victims after a suspected serial killer confessed to killing at least seven women. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
White Lion Cubs Unveiled to the Public

White Lion Cubs Unveiled to the Public

Reuters - Light News Video Online (Oct. 21, 2014) Visitors to Belgrade zoo meet a pair of three-week-old lion cubs for the first time. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
'Cadaver Dog' Sniffs out Human Remains

'Cadaver Dog' Sniffs out Human Remains

AP (Oct. 21, 2014) Where's a body buried? Buster's nose can often tell you. He's a cadaver dog, specially trained to find human remains and increasingly being used by law enforcement and accepted in courts. These dogs are helping solve even decades-old mysteries. (Oct. 21) Video provided by AP
Powered by NewsLook.com
White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
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