Secret Site Map
Wednesday, July 30, 2014

Home News USDA Develops New Beetle Trap

USDA Develops New Beetle Trap

Stored Product Pests

U.S. Department of Agriculture (USDA) researchers have developed a new pitfall trap.

| November 1, 2013

Better control of red flour beetles and other costly stored-product insect pests could be on hand, thanks to a new pitfall trap designed by U.S. Department of Agriculture (USDA) researchers.

According to chemist Peter Teal with USDA's Agricultural Research Service (ARS), the commercial traps now used are typically dome-shaped devices baited with pheromones or other attractants that lure the beetles into pits or onto glue strips. However, the new design, named the "Terrestrial Arthropod Trap," takes this "fatal attraction" to a new level, adds Teal, who leads the Chemistry Research Unit at the ARS Center for Medical, Agricultural and Veterinary Entomology in Gainesville, Fla.

He co-developed the technology with Lee Cohnstaedt of the ARS Center for Grain and Animal Health Research in Manhattan, Kan., and Adrian Duehl and Richard Arbogast, both formerly with ARS at Gainesville.

The red flour beetle, Tribolium castaneum, is a primary target of the team's trap design research because the pest eats both raw and processed cereal grains. It commonly infests flour mills, but can also be found in warehouses, storage bins and household food pantries, causing millions of dollars in losses annually.

Among its features, the new trap is pyramid-shaped and sports slender fins that coax inquisitive beetles into a central pit where they can be captured. The trap is also fitted with light-emitting diodes (LEDs) whose colored light—set to wavelengths of 390 nanometers (nm)—attracts beetles from long distances, ensuring they get a whiff of pheromone as they approach.

In laboratory trials, red flour beetles visited LED traps set to 390 nm approximately 16 times versus two to five times for traps set to other wavelengths. Moreover, the team determined, positioning the LEDs at the trap's top captured more beetles (approximately 55 total) than placing the diodes at the bottom (12 captured). Combining the LEDs with attractant made the pyramid design even more effective, capturing 70 beetles versus four using a standard dome design.

Read more about this ARS-patented technology in the October 2013 issue of Agricultural Research magazine.

http://www.ars.usda.gov/is/AR/archive/oct13/pests1013.htm

Top news

Cook’s Open House Showcases State-of-the-Art Training Facilities

Residential and commercial training centers provide hands-on educational opportunities in a “real-world” setting for technicians and sales personnel.

Bed Bugs Turn Up in Senate Office Building

The pests were found on the sixth floor of the Dirksen building last week, causing officials to take emergency measures such as closing off a restroom for a couple of days with yellow police tape, the Daily Caller reports.

'Super Ants' Discovered in London

An invasion of super ants that are attracted to electricity is feared to be spreading across the south of the country after a large nest was discovered in a house in London, metro.co.uk reports.

Mayor Dies After Wasp Attack

The mayor of a Quebec, Canada community died of anaphylactic shock after after being attacked by wasps while on vacation.

ESA Announces Newly Certified ACEs — July 2014

The Entomological Society of America (ESA) announced 16 new Associated Certified Entomologists.