Thursday, January 12, 2012

OL Mosquito Trap for Dengue-Carrying Mosquito Works

OL Mosquito Trap
OL Mosquito Trap
The Department of Science and Technology-Benguet (DOST-Benguet) launched the Ovicidal/Larvicidal (OL-Trap) System developed by the DOST-Industrial Technology Development Institute (DOST-ITDI) to fight dengue right down to households where the health menace often is, Philippine Information Agency press released said.

OL-trap is designed to significantly shrink the reproductive activities of mosquitoes through lure-and-catch system. Only the female Aedes mosquito carries the dengue virus. It feeds on proteins from human blood to be able to produce and lay as many as 200 eggs in one laying cycle. It lives for only three to four weeks and lays eggs thrice during its lifetime.

It would only take a few hours for the eggs to hatch, about 80 percent of them are females, and almost a week for the larva to become adult mosquito.

The larvicide solution makes the OL-Trap work, it has scent that invites female mosquitoes to the trap where they lay eggs and as the eggs and the hatched larvae ("wrigglers") are exposed to the solution, they die.

The OL-Trap's ovicidal and larvicidal effects prevent the next generation of mosquitoes from reaching adulthood, thus curbing the Aedes mosquito population.

In Bacolod, DOST Provincial Director Allan Francis Darug said dengue incidence in barangays with Ovicidal-Larvicidal mosquito traps posted lower number of victims compared to last year.

In Brgy. Taculing, cases dropped from 94 cases in 2010 to only 13 cases this year from January to July or 14 percent last year-s figure.

Brgy. Bata also went down from 158 cases to five or three percent from last year's cases covering the same period, Brgy. Estefania slid from 88 cases to 25 pr 28 percent, Brgy. Villamonte dropped from 69 cases to 22 cases or 32 percent and Brgy. Mansilingan went down from 52 cases to 16 or 31 percent.

And also in region 6 yielded similar results for the same period. Over-all dengue incidence per pilot city shows Iloilo City dropped from 1,127 cases to 259 which is 23 percent of last year's, Roxas from 614 cases ti 187 or 30 percent and Bacolod City from 457 cases to 16 or 4 percent.

(PIA Press Release from Baguio and Region 6)

Photo credits:


  1. Sa panahon ng aking kabataan. Gumagamit kami ng iba-ibang paraan para ma-iwasan ang sakit na dengue. Karumihan ng kapaligiran ang ugat ng lahat ng mga sakit sa kapaligiran. We used mosquito spray, mosquito net, mosquito lotion at used oil.
    Used oil spead it to a platic plate use as mosquito trap. At least thousands of mosquito we trap everyday. Okay na yon.

  2. The numbers show that this is effective. It's not launched/utilized anywhere else yet?

  3. I have not heard this one from our place. One of our neighbor got dengue last month. Hopefully DOH will disseminate Info about this all throughout the country. The dengue reported cases are getting worst.

  4. This is a great invention! I didn't know that a mosquito can lay so many eggs in one lifetime and that these eggs only take HOURS to hatch! No wonder there are so many mosquitoes around. Where are these traps distributed? How can we get one of these?

  5. Back in high school, we have mosquito traps around the campus. I'm not sure if we were already using this method though.


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