Featured Research

from universities, journals, and other organizations

Psyllid identification key to area-wide control of citrus greening spread

Date:
November 3, 2010
Source:
USDA/Agricultural Research Service
Summary:
At least six psyllid species have been found in the citrus-growing areas of the Rio Grande Valley of Texas, according to a US Department of Agriculture scientist who is working to control the spread of the psyllid-transmitted citrus greening disease.

Adult Asian citrus psyllids on a citrus stem.
Credit: Photo by Peggy Greb

At least six psyllid species have been found in the citrus-growing areas of the Rio Grande Valley of Texas, according to a U.S. Department of Agriculture (USDA) scientist who is working to control the spread of the psyllid-transmitted citrus greening disease.

A few years ago, citrus growers in south Texas noticed a new insect, the Asian citrus psyllid, on their citrus trees. This was a cause for concern, because this tiny pest is responsible for transmitting citrus greening, also known as Huanglongbing (HLB). The disease was first detected in Florida in 2005 and now poses a significant threat to the entire U.S. citrus industry.

Entomologist Donald Thomas with the Agricultural Research Service's (ARS) Kika de la Garza Subtropical Agricultural Research Center in Weslaco, Texas, has been monitoring psyllid populations in south Texas over the past year. ARS is the principal intramural scientific research agency of the USDA, and this research supports the USDA priority of promoting international food security.

With help from colleagues in Texas and Florida, Thomas has identified at least six psyllid species present in south Texas citrus groves. Some are native to the Rio Grande Valley, but others, like the Asian citrus psyllid, are not. The scientists are examining the life cycles of the six species to determine which of them can spread HLB. This will help scientists target certain species for control measures.

Thomas found that during the winter, psyllids live on torchwood, persimmon, mesquite and other trees that surround citrus groves. According to Thomas, the psyllids don't seem to be reproducing on these trees, but further testing to determine this is under way. Thomas also found abundant populations of psyllids in abandoned citrus groves and in urban areas where citrus trees are planted in backyards, indicating the need to develop management tools for use in these areas.

Thomas has presented his findings at the 2008 International Research Conference on Huanglongbing and the 2009 annual meeting of the Entomological Society of America.

Read more about this research in the November/December 2010 issue of Agricultural Research magazine at: http://www.ars.usda.gov/is/AR/archive/Nov10/citrus1110.htm


Story Source:

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


Cite This Page:

USDA/Agricultural Research Service. "Psyllid identification key to area-wide control of citrus greening spread." ScienceDaily. ScienceDaily, 3 November 2010. <www.sciencedaily.com/releases/2010/11/101103111204.htm>.
USDA/Agricultural Research Service. (2010, November 3). Psyllid identification key to area-wide control of citrus greening spread. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2010/11/101103111204.htm
USDA/Agricultural Research Service. "Psyllid identification key to area-wide control of citrus greening spread." ScienceDaily. www.sciencedaily.com/releases/2010/11/101103111204.htm (accessed July 31, 2014).

Share This




More Plants & Animals News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. 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