IMPACT OF THREE ESSENTIAL OILS AS ACTIVE INGREDIENTS OF TOXIC SUGAR BAITS ON FEEDING RATE AND MORTALITY OF AEDES...

Area of Science:

• Entomology
• Public Health
• Chemical Ecology

Background:

• Aedes aegypti mosquitoes transmit serious viral diseases like dengue and Zika.
• Insecticide resistance necessitates novel control strategies for effective mosquito management.
• Toxic sugar baits (TSB) offer a promising alternative for integrated mosquito control.

Purpose of the Study:

• To evaluate the efficacy of essential oils as active ingredients in TSB formulations.
• To assess the impact of cinnamon, cedarwood, and garlic oils on Ae. aegypti feeding behavior and mortality.
• To identify potential components for effective integrated mosquito management programs.

Main Methods:

• Adult Ae. aegypti mosquitoes were exposed to TSB formulations containing different essential oils.
• Feeding rates were measured to assess the attractiveness and deterrence of the oils.
• Mortality rates were recorded to determine the lethal efficacy of the TSBs.
• Cedarwood oil was tested in combination with boric acid.

Main Results:

• Cinnamon oil significantly reduced mosquito feeding rates compared to cedarwood and garlic oils.
• Cedarwood oil, when formulated as a TSB with boric acid, achieved high adult mosquito mortality.
• Garlic oil showed less impact on feeding and mortality compared to cinnamon and cedarwood oils.

Conclusions:

• Cedarwood oil, particularly when combined with boric acid in TSBs, demonstrates significant potential for controlling Ae. aegypti populations.
• Essential oils represent a viable component of integrated mosquito management strategies, addressing insecticide resistance.
• Further research into TSB formulations with essential oils can lead to more sustainable pest control solutions.