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2015 ; 10
(11
): e0140474
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Insect Biometrics: Optoacoustic Signal Processing and Its Applications to Remote
Monitoring of McPhail Type Traps
#MMPMID26544845
Potamitis I
; Rigakis I
; Fysarakis K
PLoS One
2015[]; 10
(11
): e0140474
PMID26544845
show ga
Monitoring traps are important components of integrated pest management applied
against important fruit fly pests, including Bactrocera oleae (Gmelin) and
Ceratitis capitata (Widemann), Diptera of the Tephritidae family, which effect a
crop-loss/per year calculated in billions of euros worldwide. Pests can be
controlled with ground pesticide sprays, the efficiency of which depends on
knowing the time, location and extent of infestations as early as possible. Trap
inspection is currently carried out manually, using the McPhail trap, and the
mass spraying is decided based on a decision protocol. We introduce the term
'insect biometrics' in the context of entomology as a measure of a characteristic
of the insect (in our case, the spectrum of its wingbeat) that allows us to
identify its species and make devices to help face old enemies with modern means.
We modify a McPhail type trap into becoming electronic by installing an array of
photoreceptors coupled to an infrared emitter, guarding the entrance of the trap.
The beating wings of insects flying in the trap intercept the light and the light
fluctuation is turned to a recording. Custom-made electronics are developed that
are placed as an external add-on kit, without altering the internal space of the
trap. Counts from the trap are transmitted using a mobile communication network.
This trap introduces a new automated remote-monitoring method different to audio
and vision-based systems. We evaluate our trap in large number of insects in the
laboratory by enclosing the electronic trap in insectary cages. Our experiments
assess the potential of delivering reliable data that can be used to initialize
reliably the spraying process at large scales but to also monitor the impact of
the spraying process as it eliminates the time-lag between acquiring and
delivering insect counts to a central agency.