Abstract:
:Any bioassay to test new chemically synthesized larvicides or phytolarvicides against Culicidae and more harmful mosquito species, such as Aedes aegypti and Aedes albopictus, which specifically transmit dengue, yellow fever, chikungunya viral fevers as well as Zika virus, or Anopheles gambiae, a vector for malaria and philariasis, requires thousands of well-developed larvae, preferably at the fourth instar stage. The natural morphogenetic cycle of Aedes spp., in the field or in the laboratory, may extend to 19 days at room temperature (e.g., 25°C) from the first permanent contact between viable eggs and water and the last stage of larval growth or metamorphosis into flying adults. Thus, accelerated sequential molting is desirable for swifter bioassays of larvicides. We achieved this goal in Aedes aegypti with very limited strategic and low-cost additions to food, such as coconut water, milk or its casein, yeast extract, and to a lesser extent, glycerol. The naturally rich coconut water was excellent for quickly attaining the population of instar IV larvae, the most advanced one before pupation, saving about a week, for subsequent larvicidal bioassays. Diluted milk, as another food source, allowed an even faster final ecdysis and adults are useful for mosquito taxonomical purpose.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Fontana JD,Ferreira RL,Zuccolotto T,de Borba Dallagassa C,Wielewski LP,Chalcoski BMS,da Silva MAN,Richardi VS,Golart J,de Melo Rodovalho Cdoi
10.1155/2020/7405421subject
Has Abstractpub_date
2020-08-29 00:00:00pages
7405421eissn
2314-6133issn
2314-6141journal_volume
2020pub_type
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