Scientists develop new mapping method for pest control
becomeeasier with a new trapping and computer monitoring method
developed by the USagricultural research service (ARP).
The scientists say the method uses a combination of trapping and spatial analysis to locateinfestations. The spatial analysis procedures establish the relationship betweenthe number of insects trapped in a specific time period and their proximity to the infestation source.
To use the system plant safety officials must first enter data into a computer about the number of insects caughtin traps from specific points. The scientists then use spatial analysis to construct contour maps identifying the insect population centers that needtreatment.
The graphic maps are used to document the number of pests and their movements, and to communicate theeffectiveness of control measures to maintenance, sanitation and pest control personnel.
The contour maps eliminate the need for routine preventive treatment. This reduces the area that needs to be exposed to pesticides and allows processors touse non-chemical methods in reducing pest infestations.
The ARP method has been tested in various commercial settings and found to beeffective, said ARP scientist Richard Arbogast, an entomologist who helpeddevelop the method.
"It has been well received by the pest control and food processing industries, and interest is expected toexpand," Arbogast stated.
Plants usually rely on chemical insecticides and fumigants to keep insects away from a variety of products,including grains and cereals, nuts and dried fruit.
Most pest control operators typically focus on when and where they expect pests to be found.The ARP method gives them an additional tool to help zero in on infestations, often in unexpected places, according to Arbogast.
