Navigation Links
Special delivery: Nematode-infected insect cadavers
Date:11/22/2011

This press release is available in Spanish.

A custom-made machine for packaging mealworms infected with beneficial nematodes could improve the delivery, timing and use of the wormlike organisms as biological control agents.

The machine is the result of a cooperative research and development agreement involving US Department of Agriculture (USDA) scientists and Southeastern Insectaries, Inc., of Perry, Ga.

The Heterorhabditis and Steinernema nematodes being used can infect and kill a wide array of insect crop pests, including Japanese beetles, vine weevils, root borers and fungus gnats. About 10 years ago, entomologist David Shapiro-Ilan and colleagues with USDA's Agricultural Research Service (ARS) and Virginia Polytechnic Institute and State University showed that the nematodes performed best when applied in the dead bodies of the insect hosts used to mass-produce them. Pest control is then achieved by the nematode progeny that emerge from the insect cadavers. ARS is USDA's principal intramural scientific research agency.

A technical hurdle that's kept the insect-cadaver approach from gaining widespread commercial acceptance is the tendency of some commonly used host insects to rupture or stick together during storage, transport and application.

Southeastern Insectaries owner Louis Tedders came up with a solution, namely, packaging the insects in masking tape. He also devised a prototype device to automate the process, which ARS scientists Juan Morales-Ramos and Guadalupe Rojas in Stoneville, Miss., subsequently refined.

Using off-the-shelf parts, for example, they built a device to mechanically sort mealworms by size, with the biggest ones chosen for placement in shallow dishes where nematodes could infect them. After a few days, a mechanical arm reaches in and places the dead, infected mealworms between strips of masking tape at the rate of one insect every two seconds. Eventually, an entire roll is formed, allowing for easy storage, transport and application to pest-infested soils.

Shapiro-Ilan's laboratory tests of the insect-cadaver taping system showed no adverse effects on the nematodes' survival and pest-control ability. Indeed, 15 days after application, nematodes from the taped cadavers killed up to 78 percent of small hive beetles and 91 percent of root weevils used in the tests.


'/>"/>
Contact: Jan Suszkiw
jan.suszkiw@ars.usda.gov
301-504-1630
United States Department of Agriculture - Research, Education and Economics
Source:Eurekalert

Related biology news :

1. So-called sandfish could help materials handling and process technology specialists
2. HJF nursing specialist wins prestigious Celina Field Cargiver Award
3. Neuroinformatics special issue spotlights the Neuroscience Information Framework
4. Special issue of BMC Microbiology spotlights standardized language for describing microbes
5. Special issue Comparative Cognition in Context now published
6. Explorations Group Announces Letter of Intent to Acquire Specialty Lighting Company
7. Explorations Group Announces Letter of Intent to Acquire Specialty Lighting Company
8. Pest management specialist Charles Summers wins prestigious Woodworth Award
9. GSA special paper presents new studies of Western US earth motion
10. Continuous glucose monitoring technology -- special issue of Diabetes Technology and Therapeutics
11. Women with endometriosis need special care during pregnancy to avoid risk of premature birth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/1/2016)... 1, 2016  Wocket® smart wallet ( www.wocketwallet.com ) announces the launch ... Joey Fatone . Las Vegas , where Joey ... --> Las Vegas , where Joey appeared at the ... new video ad was filmed at the Consumer Electronics Show (CES2016) in ... booth to meet and greet fans. --> ...
(Date:1/25/2016)... -- Glencoe Software, the world-leading supplier of image data management ... the data management solution OMERO Plus for the newly ... Photo - http://photos.prnewswire.com/prnh/20160125/325328LOGO ... Phenotypic analysis measures the characteristics and behavior of cells, ... such as health and disease, the presence or absence ...
(Date:1/20/2016)... -- A market that just keeps on growing. Molecular ... in genomics knowledge. Learn all about it in this ... dynamic trends are pushing market growth and company valuations. ... - pathogen evolution - next generation sequencing - emergence ... of the role of genetic material in Disease and ...
Breaking Biology News(10 mins):
(Date:2/4/2016)... , Feb. 4, 2016 Sinovac Biotech ... a leading provider of biopharmaceutical products in ... of its board of directors received on February 4, ... 2016, from a consortium comprised of PKU V-Ming ( ... Biomedicine Co., Ltd., CICC Qianhai Development ( Shenzhen ...
(Date:2/3/2016)... , Feb. 3, 2016  Discovery Laboratories, Inc. ... on developing aerosolized KL4 surfactant therapies for respiratory ... has approved an inducement award as a component ... its newly appointed President and Chief Executive Officer.  ... Committee on February 1, 2016 and granted as ...
(Date:2/3/2016)... ... February 03, 2016 , ... Aerocom, a world-leading supplier ... the North American healthcare market. , Aerocom Healthcare, LLC will be based in ... will provide new pneumatic tube systems or expand existing systems within the U.S. ...
(Date:2/3/2016)... , Feb. 3, 2016  Today, Symphony Technology ... AlphaImpactRx , a leading provider of primary research ... to IMS Health , a global information and ... offerings, capabilities and technologies will be integrated into IMS ... global primary market research capabilities. ...
Breaking Biology Technology: