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Title:   Author  item
                                            Zhu, Heping
  Submitted to: USDA Interagency Research Forum on Gypsy Moth and Other Invasive Species
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 11/2/2006
                                    Publication  Date: 1/18/2007
                                    Citation: Zhu, H. 2007. Development of Harmonic Radar Systems for Tracking Emerald Ash Borer [abstract]. USDA Interagency Research Forum on Gypsy Moth and Other Invasive Species.Interpretive Summary:
                                Technical Abstract: Emerald ash borers (EAB) have killed millions of ash trees since they were identified in North America in the summer of 2002.  Data are needed on EAB behavior to aid development of treatment and management strategies and enable more effectively schedule and target control measures.  Entomological radar technology offers potential for adapting or developing tools for investigating insect behavior, populations or migration.  An insect-mounted, miniature transponder was developed to facilitate location in conjunction with a commercially available harmonic radar transceiver detector.  The transponder was powered by a 0.917 GHz signal from the detector, and returned a 1.834 GHz signal to the detector when detected.  The transponder consisted of a Schottky barrier diode with an inductively loaded monopole antenna and was lightweight at 20 mg of mass.  However, this weight was too heavy for an emerald ash borer to carry.  New development of a receiver and transmitter as well as mini dipole antennas with very high transponder frequency is in the process.


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