AI Article Synopsis

  • - This study investigates using parasites as a natural alternative to chemical insecticides for controlling mosquito larvae at various developmental stages.
  • - Laboratory experiments showed that the third and fourth larval instars of certain mosquito species experienced significant infections leading to reduced movement and higher mortality rates.
  • - The results suggest that these parasites could drastically lower adult mosquito emergence, indicating their potential use in mosquito biocontrol efforts.

Article Abstract

Background: Considering the disadvantages of chemical insecticides, we aimed to evaluate parasites for control of mosquito larvae of and at different larval stages.

Methods: sp infected mosquito larvae were crushed in the 0.85% saline and homogenized well to get in suspension. The effects of sp infections on larval development were investigated by inoculating protozoan on different larval instars of and and observed under light microscope. Lethal time of the infected larvae at different stages was calculated.

Results: First and 2 larval instars of both and did not show signs of infection by sp., whereas 3 instars of showed more infection than those of . However, 4 larval instars of both mosquitoes were heavily infected with parasite which was responsible for sluggish movements of larvae and eventually death. Moreover, parasites ( spp) were responsible for more than 90% reduction in adult emergence for both infected and .

Conclusion: This study provides insights for mosquito larvicidal action of surface parasite on different larval stages of and . It could be suggested as a potential candidate in mosquito biocontrol programs.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5186751PMC

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