Efficacy of cold fogging of a synergized pyrethroid formulation against Aedes aegypti and Culex quinquefasciatus under simulated fild conditions
Journal Title: Asian Pacific Journal of Tropical Disease - Year 2016, Vol 6, Issue 12
Abstract
Objective: To evaluate the efficacy of a synergized pyrethroid formulation containing 0.8% w/ w s-bioallethrin, 18.7% w/w permethrin and 16.8% w/w piperonyl butoxide. Methods: Cold fogging was carried out against Aedes aegypti (Ae. aegypti) and Culex quinquefasciatus using a synergized pyrethroid formulation containing 0.8% w/w s-bioallethrin, 18.7% w/w permethrin and 16.8% w/w piperonyl butoxide. Three cages each containing 15 mosquitoes and paper cups each containing 25 larvae in 250 mL of water were deployed at each test pole between 10 and 40 feet. The formulation was diluted as 1:33, 1:50 and 1:100, respectively, and applied using a mist blower. Results: Using the dilution ratio of 1:33 and 1:50, 100% adult knock-down was recorded after an hour of post spraying at all checkpoints for both species. The percentage of adult mortalities for both species at 24 h post spraying ranged from 80% to 100%. Moreover, complete mortalities of Ae. aegypti larvae were demonstrated for both dilution ratio of 1:33 and 1:50 at all checkpoints. Meanwhile, complete mortalities of Culex quinquefasciatus larvae were recorded only at 10 and 20 feet with dilution ratio of 1:33. Conclusions: These results showed that cold fogging using synergized pyrethroid formulation tested was more effective against Ae. aegypti between 10 and 30 feet with dilution ratio of 1:33.
Anioxidant activity of palmarosa essential oil (Cymbopogon martini) grown in north indian plains
Objective: The present study deals with the in vitro study of antioxidant activity of essential oil from Palmarosa (Cymbopogon martini) of family gramineae. Methods: The in vitro study of antioxidant activity of Palmaros...
Tetanus in an unvaccinated child: A case report
In Iran tetanus is a rare disease since routine vaccination with Diphtheria, Pertussis, Tetanus (DPT) in accordance with the WHO immunization recommendations. We report on the case of an Afghan 14-year-old boy admitted t...
Soluble expression and purifiation of hepatitis B core antigen (HBcAg) subgenotype B3 in Escherichia coli using thioredoxin fusion tag
Objective: To express HBcAg protein (hepatitis B virus subgenotype B3) in Escherichia coli in soluble form. Methods: HBcAg sequence of hepatitis B virus subgenotype B3 was cloned into plasmid pET32a and introduced to E....
Balantidiasis in a dromedarian camel
A 3 years old male dromedarian camel was examined because of anorexia and diarrhea. The affected camel was depressed, tachycardic, eupnic, and had a body temperature of 38.8 °C. Mucous membranes were hyperemic and faeces...
Microscopic and micro chemical evaluation (elemental Analysis) of the medicinal herb, Lippia nodiflora (Linn.) Rich (Phyla nodiflora Linn. Green)
Objective: To explore the micro morphology and elemental analysis of Lippia nodoflora (L. nodiflora) Methods: Fresh leaf sections and epidermal peels were used for light microscopy. Glutaraldehyde fixed and dehydrated pl...