New trap catches only the bad bugs
WASHINGTON — A smart trap for mosquitoes?
A new high-tech version is promising to catch the bloodsuckers while letting friendlier insects escape — and even record the exact weather conditions when different species emerge to bite.
Whether it really could improve public health is still to be determined.
But when the robotic traps were pilot-tested around Houston last summer, they accurately captured particular mosquito species — those capable of spreading the Zika virus and certain other diseases — that health officials wanted to track, researchers reported Thursday.
The traps act like “a field biologist in real time that’s making choices about the insects it wants to capture,” said Microsoft lead researcher Ethan Jackson, who displayed a prototype trap at a meeting of the American Association for the Advancement of Science in Boston.
The traps are part of Microsoft’s broader Project Premonition, aimed at learning how to spot early signs of outbreaks.
Trapping is a key part of mosquito surveillance and control so health officials know where to spray.
Jackson’s trap consists of 64 “smart cells,” compartments outfitted with an infrared light beam. When an insect crosses the beam, its shadow changes the light intensity in a way that forms almost a fingerprint for that species, Jackson said.
Program the trap for the desired species and when one flies into a cell, its door snaps closed.
In pilot testing in Harris County, Texas, last July and August, the trap was more than 90 percent accurate in identifying the insect buzzing through the door, Jackson said.
When each mosquito is captured, sensors record the time, temperature, humidity and other factors, to show what environmental conditions have different species buzzing.
The next step: Rapid genetic scans of the mosquitoes’ blood check for harmful pathogens — and can tell what animal the mosquito had been biting. / AP