During the investigation, Aedes aegypti larvae were put on the plant in different concentrations. But when the mosquitoes in the larval stage were placed in contact with the substance, they died two or three days later because of a toxin secreted by the plant, said researchers on Monday.
According to the researchers, it showed that the pinon rojo succeeded in killing the larvae at the same rate as a chemical insecticide.
The Aedes aegypti mosquito, which is behind the Zika epidemic spreading through Latin America, has become widespread in Brazil.
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