scholarly journals Impact of alphacypermethrin and lambda-cyhalothrin on immature survivorship of the dengue vector Aedes albopictus (Skuse) (Diptera : Culicidae) in a cemetery

1997 ◽  
Vol 48 (1) ◽  
pp. 59-64
Author(s):  
Sallehudin SULAIMAN ◽  
Zainol PAWANCHEE ◽  
ZULKIFLI ARIFIN ◽  
Ahmad WAHAB ◽  
John JEFFERY
Keyword(s):  
Aedes Albopictus ◽  
Dengue Vector ◽  
Lambda Cyhalothrin

scholarly journals A07 Ecological and physiological determinants of the midgut proteome of the dengue vector Aedes albopictus (Diptera: Culicidae)

2005 ◽  
Vol 56 (Supplement) ◽  
pp. 37
Author(s):  
Dieng Hamady ◽  
Naoki Tamori ◽  
Junko Higashihara ◽  
Saburo Anzai ◽  
Yuki Eshita
Keyword(s):  
Aedes Albopictus ◽  
Dengue Vector

scholarly journals Effects of Plant Species, Insecticide, and Exposure Time On the Efficacy Of Barrier Treatments Against Aedes albopictus

2018 ◽  
Vol 34 (4) ◽  
pp. 281-290 ◽  
Author(s):  
Benjamin E. McMillan ◽  
Jake E. Bova ◽  
Carlyle C. Brewster ◽  
Nicola T. Gallagher ◽  
Sally L. Paulson
Keyword(s):  
Plant Species ◽  
Aedes Albopictus ◽  
Adult Mortality ◽  
Miscanthus Sinensis ◽  
Chemical Treatments ◽  
Residual Toxicity ◽  
Japanese Honeysuckle ◽  
Lambda Cyhalothrin ◽  
Significant Difference ◽  
Over Time

ABSTRACT The effect of 5 plant species (arborvitae [Thuja occidentalis], boxwood [Buxus sp., Japanese honeysuckle [Lonicera japonica], rhododendron [Rhododendron sp.], and zebra grass [Miscanthus sinensis]) and 2 rates of lambda-cyhalothrin (3.13 ml and 6.25 ml active ingredient [AI]/liter) on knockdown (1 h) and mortality (24 h) of adult female Aedes albopictus was evaluated over an 8-wk period. A significant difference in knockdown was observed between the 2 rates of lambda-cyhalothrin on the 5 plant species, with the highest proportion of knockdown observed on zebra grass and rhododendron treated at the higher rate. Although mortality was ≥60% and 85% on the 5 plant species at the low and high rates of lambda-cyhalothrin, respectively, a significant difference between the 2 rates was only observed on boxwood and Japanese honeysuckle (P < 0.0001). We also tested the residual toxicity of 3 barrier sprays (lambda-cyhalothrin, bifenthrin, and deltamethrin) and evaluated the efficacy of a short (5-min) exposure to the insecticides on knockdown and mortality of adults over time. Significantly higher knockdown was observed with lambda-cyhalothrin compared with bifenthrin and deltamethrin (P < 0.0001). Mean knockdown was ∼98%, 92%, and 20% for lambda-cyhalothrin, bifenthrin, and deltamethrin, respectively, at week 2, and ∼98%, 0%, and 44%, respectively, 8 wk after treatments were applied. Adult mortality from the 3 chemical treatments, however, remained above 90% throughout the study. Lastly, the trends in mean proportion of knockdown were similar for mosquitoes exposed for either 5 min or 24 h to the 3 chemicals. An overall decline in mean mortality over time, however, was observed for mosquitoes exposed for 5 min to the chemicals compared with mortality from the 24-h exposure. The results suggest that lambda-cyhalothrin can be an effective barrier spray treatment against Ae. albopictus adults because its efficacy is limited little by plant species, it has long residual toxicity, and it is effective following only 5 min of exposure.

An appraisal of post flood dengue vector Aedes albopictus Skuse (Diptera: Culicidee) surveillance in a coastal district of Kerala, India

ENTOMON ◽  
2021 ◽  
Vol 46 (1) ◽  
pp. 25-32
Author(s):  
R. Rajendran ◽  
S.R. Karmakar ◽  
Vinay Garg ◽  
Rajlakshmi Viswanathan ◽  
Kamran Zaman ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Heavy Rainfall ◽  
Flood Disaster ◽  
Dengue Vector ◽  
Vector Borne Disease ◽  
Vector Borne ◽  
Coastal District

Alappuzha coastal district was worst affected by floods due to the heavy rainfall in August 2018. Aedes albopictus survey carried out in the post flood/ disaster areas covering 1,140 households revealed maximum larval positivity in plastic/leather followed by metal and earthen containers. The House index ranged from 1.75 to 12.28 per cent whereas the container index ranged from 1.73 to 20.51 per cent. Breteau index ranged from 3.5 to14.3. As dengue is endemic in the district, there exists a potential outbreak of the vector borne disease.

Evaluation of Lambda-Cyhalothrin Barrier Spray on Vegetation For Control of Aedes albopictus in China

2010 ◽  
Vol 26 (3) ◽  
pp. 346-348 ◽  
Author(s):  
Chun-Xiao Li ◽  
Zhong-Ming Wang ◽  
Yan-De Dong ◽  
Ting Yan ◽  
Ying-Mei Zhang ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Lambda Cyhalothrin

scholarly journals Field evaluation of Fipronil 3G, Fipronil 50 SC and Bacillus thuringiensis H-14 against the dengue vector Aedes albopictus in tires

1997 ◽  
Vol 48 (4) ◽  
pp. 351-354 ◽  
Author(s):  
Sallehudin SULAIMAN ◽  
Zainol Ariffin PAWANCHEE ◽  
Ahmad WAHAB ◽  
Jefri JAMAL ◽  
Abdul Rahim SOHADI ◽  
...  
Keyword(s):  
Bacillus Thuringiensis ◽  
Aedes Albopictus ◽  
Field Evaluation ◽  
Dengue Vector

Adulticide Resistance Status of Aedes albopictus (Diptera: Culicidae) in Sabah, Malaysia: A Statewide Assessment

2019 ◽  
Vol 56 (6) ◽  
pp. 1715-1725
Author(s):  
N M R Elia-Amira ◽  
C D Chen ◽  
V L Low ◽  
K W Lau ◽  
A Haziqah-Rashid ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Correlation Analysis ◽  
Aedes Albopictus ◽  
Mortality Rates ◽  
The Other ◽  
Cross Resistance ◽  
Lambda Cyhalothrin ◽  
East Malaysia ◽  
Statewide Assessment ◽  
Susceptibility Status

Abstract Resistance status of Aedes albopictus (Diptera: Culicidae) collected from Sabah, East Malaysia, was evaluated against four major classes of adulticides, namely pyrethroid, carbamate, organochlorine, and organophosphate. Adult bioassays conforming to WHO standard protocols were conducted to assess knockdown and mortality rates of Ae. albopictus. Among tested pyrethroid adulticides, only cyfluthrin, lambda-cyaholthrin, and deltamethrin were able to inflict total knockdown. The other adulticide classes mostly failed to cause any knockdown; the highest knockdown rate was only 18.33% for propoxur. With regards to mortality rate, Ae. albopictus was unanimously susceptible toward all pyrethroids, dieldrin, and malathion, but exhibited resistance toward bendiocarb, propoxur, dichlorodiphenyltrichloroethane, and fenitrothion. Additionally, correlation analysis demonstrated cross-resistance between bendiocarb and propoxur, and malathion and propoxur. In conclusion, this study has disclosed that pyrethroids are still generally effective for Aedes control in Sabah, Malaysia. The susceptibility status of Ae. albopictus against pyrethroids in descending order was cyfluthrin > lambda-cyhalothrin > deltamethrin > etofenprox > permethrin.

scholarly journals The Cytochrome P450 gene CYP6P12 confers pyrethroid resistance in kdr-free Malaysian populations of the dengue vector Aedes albopictus

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Intan H. Ishak ◽  
Jacob M. Riveron ◽  
Sulaiman S. Ibrahim ◽  
Rob Stott ◽  
Joshua Longbottom ◽  
...  
Keyword(s):  
Cytochrome P450 ◽  
Aedes Albopictus ◽  
Pyrethroid Resistance ◽  
Dengue Vector ◽  
Cytochrome P450 Gene ◽  
P450 Gene

scholarly journals Aedes albopictus (Skuse) susceptibility status to agrochemical-insecticides used in durian plantating systems in southern Thailand

2020 ◽  
Author(s):  
Sakda Ratisupakorn ◽  
Sokchan Lorn ◽  
Nsa Dada ◽  
Aran Ngampongsai ◽  
Pawit Chaivisit ◽  
...  
Keyword(s):  
Population Density ◽  
Aedes Albopictus ◽  
Insect Pests ◽  
Field Application ◽  
Insecticide Susceptibility ◽  
Future Studies ◽  
Lambda Cyhalothrin ◽  
Southern Thailand ◽  
Study Sites ◽  
Susceptibility Status

ABSTRACTHigh rates of dengue, chikungunya, and zika morbidity occur in southern Thailand. The intensive application of insecticides in orchards could impact not only agricultural insect pests, but also non-target insects, such as mosquitoes, or non-target beneficial insects. In this study, the population density and insecticide susceptibility of Aedes albopictus populations to field application concentrations of four agrochemical insecticides – cypermethrin, chlorpyrifos, carbaryl, and imidacloprid were examined. Mosquito eggs were collected from durian cultivation sites in five provinces in southern Thailand and hatched and allowed to develop to the adult stage. The study sites were categorized into three groups based on insecticide application; intensive-application of insecticides (IA), less-application of insecticides (LA), and no application of insecticides (NA). Twenty ovitraps were deployed for at least three consecutive days at each study site to collect mosquito eggs and to determine the Ae. albopictus population density then WHO tube assays being used to determine the susceptibility of adult mosquitoes to selected insecticides. This study represents the first report of the agrochemical insecticide susceptibility status of Ae. albopictus collected from durian orchards in southern Thailand. The study found that the populations of Ae. albopictus were susceptible to chlorpyrifos, but showed reduced mortality following exposure to lambda-cyhalothrin, carbaryl, and imidacloprid which is suggestive of the existence of resistance. These findings provide new insights into mosquito insecticide resistance focusing on Ae. albopictus populations and has important implications for mosquito and mosquito-borne disease control in Thailand as well as providing baseline data on which future studies can develop.

scholarly journals Insecticide resistance in dengue vectors from hotspots in Selangor, Malaysia

2021 ◽  
Vol 15 (3) ◽  
pp. e0009205
Author(s):  
Rosilawati Rasli ◽  
Yoon Ling Cheong ◽  
M. Khairuddin Che Ibrahim ◽  
Siti Futri Farahininajua Fikri ◽  
Rusydi Najmuddin Norzali ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Insecticide Resistance ◽  
Vector Control ◽  
Aedes Albopictus ◽  
World Health ◽  
Dengue Vector ◽  
Organophosphate Insecticide ◽  
Potential Threat ◽  
Pyrethroid Insecticides ◽  
Dengue Vector Control

Background In Malaysia, dengue remains a top priority disease and usage of insecticides is the main method for dengue vector control. Limited baseline insecticide resistance data in dengue hotspots has prompted us to conduct this study. The present study reports the use of a map on the insecticide susceptibility status of Aedes aegypti and Aedes albopictus to provide a quick visualization and overview of the distribution of insecticide resistance. Method and results The insecticide resistance status of Aedes populations collected from 24 dengue hotspot areas from the period of December 2018 until June 2019 was proactively monitored using the World Health Organization standard protocol for adult and larval susceptibility testing was conducted, together with elucidation of the mechanisms involved in observed resistance. For resistance monitoring, susceptibility to three adulticides (permethrin, deltamethrin, and malathion) was tested, as well as susceptibility to the larvicide, temephos. Data showed significant resistance to both deltamethrin and permethrin (pyrethroid insecticides), and to malathion (organophosphate insecticide) in all sampled Aedes aegypti populations, while variable resistance patterns were found in the sampled Aedes albopictus populations. Temephos resistance was observed when larvae were tested using the diagnostic dosage of 0.012mg/L but not at the operational dosage of 1mg/L for both species. Conclusion The present study highlights evidence of a potential threat to the effectiveness of insecticides currently used in dengue vector control, and the urgent requirement for insecticide resistance management to be integrated into the National Dengue Control Program.

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