08.07.2013

Biological and Ecological Larvicide against Dengue

The first biological insecticide against dengue is produced in a laboratory in the location of Berazategui. It can eliminate mosquito larvae and interrupt their reproductive cycle in 8 to 12 hours. This insecticide is used to fumigate spaces where this mosquito can reproduce and is harmless for mammals, birds, and other insects.

Biological and Ecological Larvicide against Dengue 1

The study of the bacillus thuringiensis israelensis bacteria.

A laboratory in the location of Berazategui produces the first biological insecticide developed in Argentina, which offers an efficient control of the mosquito vector of dengue and interrupts its reproductive cycle. This insecticide is characterized for being environmentally friendly, as it is obtained from the fermentation of a bacteria produced by a technology called Bt, as recommended by the World Health Organization (WHO). Development of this product was made due to the financing granted by the Ministry of Science, Technology, and Productive Innovation through the Argentinean Technology Fund (FONTAR) from the National Agency for Science and technology Promotion.

This insecticide is produced by Laboratorios Pincen S.A., a technological SME based in the location of Berazategui, province of Buenos Aires, which was created to develop this product. Its owner and manager is Lucio Cieza, who had a scholarship from the Conicet until 2005, when he obtained a doctorate whose dissertation was about the study of the Bacillus thuringiensis israelensis bacteria. Based on such work, this scientist found out through fermentation of this bacteria (Bt) that he could obtain a biological insecticide that eliminates larvae of mosquitoes and gnats, interrupting their reproductive cycle in 8 or 12 hours.

This ecologic insecticide has been designed mainly for elimination of the Aedes Aegypti mosquito, which is an agent that transmits viral diseases, such as dengue, and has no oral or thermal toxicity for mammals, birds, and other insects. Therefore, this insecticide is harmless for any living creature that gets in contact with water ponds, ditches, water streams, lagoons, and any other water course, both inside or outside homes where the mosquito reproduces.

This process for production of insecticide uses the so-called clean technologies, as it is about production of the Bacillus thuringiensis microorganism that may be naturally found in the soil, which is harmless and can synthetize a specific protein crystal against the mosquito larvae. For this reason, the World Health Organization recommends using this type of technology for epidemiologic control of Aedes Agyptii for its ecologic properties and the absence of oral toxicity or dermal toxicity for mammals, birds, and other insects.

The diptokill-Bt larvicide was registered and approved by the Central Laboratory of Public Health of the province of Buenos Aires, according to the requirements established by the Ministry of Health for its use at homes or their surroundings, i.e., within the home perimeter, where we can find water mirrors.

So far, this product was only imported. Now, it is produced in our country in two presentations, a single dose for backpacks of professional use and another one for dropper bottle for domestic use. Both of them have been approved by the National Administration of Medicines, Food, and Medical Technology (ANMAT).

The company is currently oriented to meeting the increasing demand of an efficient product for the sanitary control of the mosquito, aiming at a wide market including public health campaigns, municipalities, plague control operators, and private users.

No mosquito, no dengue

Dengue is a viral disease transmitted by the beat of the Aedes Aegypti dengue. This disease is transmitted when the mosquito feeds with blood from a person that has dengue, and then this mosquito bites other persons. This disease is only produced by the bite of infected mosquitoes, never from one person to another, nor through any objects or breast feeding. However, it is not very common for pregnant women to pass on this disease to their babies during pregnancy.

As there are no vaccines that prevent dengue or any medicines that cure it, the most important measure is to prevent reproduction of the mosquito and to eliminate places where they can reproduce, such as, containers with water indoors and outdoors, and surroundings. If such containers may not be eliminated because they are used permanently, accumulation of water should be avoided by turning them upside down (buckets, bowls, drums) or should be emptied permanently (flowerpots, water dispensers).

Fumigation is not enough to eliminate the mosquito. The application of insecticides is a measure used for eliminating adult mosquitoes that can pass on dengue. Their implementation should be evaluated by health authorities, as they are only advisable on emergencies, and should always be accompanied by the elimination of any containers that store water at homes and public places. 

Bio-larvicide against Dengue

Dengue is a viral disease passed on human beings by the Aedes aegypti dengue. “No larvae, no mosquito”, it is the slogan of Lucio Cieza, a former scholar from the Conicet, who developed a biological larvicide based on a bacteria that eliminates larvae in less than 24 hours without affecting plants, animals or persons, with financing provided by the National Agency of Scientific Promotion. This micro presents a safe, efficient, and sustainable friendly way to fight against dengue
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Biological and Ecological Larvicide against Dengue 1

The study of the bacillus thuringiensis israelensis bacteria.

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