Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Developing biocontrols to contain a voracious pest

27.04.2011
U.S. Department of Agriculture (USDA) scientists are playing a key role in efforts to contain the emerald ash borer's destructive march through the nation's forests.

Researchers with USDA's Agricultural Research Service (ARS) are testing a fungal pathogen that could be used as a biocontrol, along with the release of non-stinging wasps that are the beetle's natural enemies. Wasps have been released in Michigan, Illinois, Indiana, Ohio, West Virginia and Maryland, and releases are planned in several other states.

John Vandenberg, an entomologist with the ARS Robert W. Holley Center for Agriculture and Health in Ithaca, N.Y., is evaluating Beauveria bassiana, a fungus that is the active ingredient in a commercially available insecticide. Researchers have found that the fungus helps to control emerald ash borer beetles when it is applied to infested trees before wasps are released.

Results, published in the journal Biological Control, show the fungus kills beetles and persists better on bark than on leaves. More recent work shows the fungus does not harm the wasps. ARS is the USDA's principal intramural scientific research agency, and the research supports USDA's commitment to agricultural sustainability.

The beetles were first detected in the United States near Detroit, Mich., in 2002 and have since wiped out huge swaths of ash trees in forests and tree-lined neighborhoods. Along with the ecological implications, ash trees are used to make furniture, tool handles, baseball bats, and other wood products.

In other work, Jian Duan, an entomologist at the ARS Beneficial Insects Introduction Research Unit in Newark, Del., is working with state and federal partners to determine how well the three wasp species being released, Oobius agrili, Tetrastichus planipennisi, and Spathius agrili, are surviving the winter in different Northeastern habitats and whether any one of the wasps is more effective than the others.

Duan also recently published a preliminary assessment focused on whether the wasps were able to become established in three stands of natural forests in Michigan. His findings, published in the journal Environmental Entomology, showed that at least one of the wasps (T. planipennisi) had become established in three release sites in Michigan, and that T. planipennisi was the most abundant species of parasitoid wasps attacking emerald ash beetle larvae a year after release.

Read more about this research in the April 2011 issue of Agricultural Research magazine. http://www.ars.usda.gov/is/AR/archive/apr11/pest0411.htm

USDA is an equal opportunity provider, employer and lender. To file a complaint of discrimination, write: USDA, Director, Office of Civil Rights, 1400 Independence Ave., S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice), or (202) 720-6382 (TDD).

Dennis O'Brien | EurekAlert!
Further information:
http://www.ars.usda.gov

More articles from Agricultural and Forestry Science:

nachricht Trees and climate change: Faster growth, lighter wood
14.08.2018 | Technische Universität München

nachricht Animals and fungi enhance the performance of forests
01.08.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Unraveling the nature of 'whistlers' from space in the lab

15.08.2018 | Physics and Astronomy

Diving robots find Antarctic winter seas exhale surprising amounts of carbon dioxide

15.08.2018 | Earth Sciences

Early opaque universe linked to galaxy scarcity

15.08.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>