• Shaneelahi
• Dr. Manoj Kumar

Abstract This document summarizes research to help designers manipulate environmental conditions to favour Culex vishnui and other disease vectors. Background Culex vishnui breed in still and/or low-velocity water that has some organic content. Culex vishnui are an important vector of Japanese Encephalitis virus and various other arthropod-borne diseases. Environmental factors, particularly temperature, humidity, and water quality, control the development and reproduction of all mosquitoes and the population development and survival of Culex vishnui. Objective Research on the effects of temperature and humidity, and water quality parameters on the development and reproduction of Culex vishnui larvae was conducted by: a) Observing the different stages of development and survival of Culex vishnui larvae in several different aquatic habitats; b) Measuring the temperature, humidity, and the physical and chemical characteristics of the water, and; c) Performing statistical analyses on the data collected, specifically the rate of development and survival. Methods The main findings of the study show that the optimum temperature and humidity conditions for larvae's development and increasing survival rates are in the moderate ranges. Temperature extremes significantly decrease the greatest number of larvae (up to 90% survival) under favourable environmental conditions (favourable organic content). Results The second major finding indicates that high organic content (compared to all other parameters) creates the densest Culex vishnui populations in still water habitats. Comparison with Literature Compared to the findings of other similar studies on the ecology of Culex vishnui, the results of this study supported the ecological trends seen in other studies. Minor variances were probably due to the variations in local climatic/influencing water chemistry. Conclusion As such, environmental parameters are critical to the development and survival of Culex vishnui, and present potential opportunities for implementing more effective and ecologically-based insecticides.

Culex vishnui; Larval ecology; Temperature; Humidity; Water quality; Vector biology

"To study the Impact of Temperature, Humidity, and Water Quality on the Development and Survival of Culex vishnui Larvae", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 1, page no.d615-d628, January-2026, Available :http://www.jetir.org/papers/JETIR2601381.pdf

"To study the Impact of Temperature, Humidity, and Water Quality on the Development and Survival of Culex vishnui Larvae", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 1, page no. ppd615-d628, January-2026, Available at : http://www.jetir.org/papers/JETIR2601381.pdf