scholarly journals Efficacy of Residual Pesticide–Treated Plant Saucers Against Aedes albopictus Larvae Under Semi–Field and Field Conditions

2020 ◽  
Vol 36 (2) ◽  
pp. 123-126
Author(s):  
Yongxing Jiang ◽  
Cason E. Bartz ◽  
Justin K. Baker
Keyword(s):  
Aedes Albopictus ◽  
Good Control ◽  
Field Conditions ◽  
Lambda Cyhalothrin ◽  
Residual Efficacy ◽  
Treated Plant ◽  
Mosquito Management ◽  
Water Holding ◽  
Container Mosquito ◽  
Considerable Period

ABSTRACT Plant saucers are ubiquitous, outdoor water-holding receptacles and are one of the most productive domestic mosquito habitats in the urban environment. Two kinds of commonly used plant saucers, clay and plastic, were manually treated with 3 residual insecticides, bifenthrin (Talstar® Professional), lambda-cyhalothrin (Lambda 9.7 CS), and tau-fluvalinate (Mavrik® Perimeter), at their maximum rates to assess their residual efficacy against Aedes albopictus larvae under semi–field and field conditions. Both clay and plastic saucers treated with bifenthrin and lambda-cyhalothrin provided weeks of control of 3rd instars of Ae. albopictus, whereas tau-fluvalinate provided only 1 day of control. Results from this study show that bifenthrin and lambda-cyhalothrin can provide good control of Ae. albopictus larvae for a considerable period of time and have great potential with regard to container mosquito management in the future.

scholarly journals Spatial Distribution of Discarded Vehicle Tires and Their Influence on Aedes albopictus and Culex quinquefasciatus Populations, New Orleans, Louisiana

2020 ◽  
Author(s):  
Mohamed F. Sallam ◽  
Tamer Ahmed ◽  
Cynthia Sylvain-Lear ◽  
Claudia Riegel ◽  
Imelda K. Moise
Keyword(s):  
Spatial Distribution ◽  
New Orleans ◽  
Aedes Albopictus ◽  
Culex Quinquefasciatus ◽  
Mosquito Species ◽  
Land Use Land Cover ◽  
Muddy Water ◽  
Geographic Expansion ◽  
Water Holding ◽  
Container Mosquito

AbstractDiscarded vehicle tires play an important role in the colonization of container mosquito populations, particularly their geographic expansion. We assessed the spatial distribution of illegally discarded tires and their response to land use-land cover (LULC), and demographic factors using geospatial analysis and generalized regression. Multiple stepwise regressions were used to evaluate the response of the Container Index (CI) of colonized Aedes albopictus (Skuse), and Culex quinquefasciatus Say to macro- and microhabitats variables. The illegally discarded tires were distributed over 11 planning districts with clustering distribution for tires frequency and overdispersed distribution for tires number. Out of 1,137 (∼37.08%) water-holding tires, 598 (∼52.64%) tires at 65 (∼38.46%) sites were positive for colonized mosquito populations. A total of 13 mosquito species were identified, with the highest CI of Ae. albopictus (44.19%) and Cx. quinquefasciatus (22.18%). Aedes albopictus colonized all 65 sample sites and Cx. quinquefasciatus found at 32 sites. The Container Index (CI) of colonized mosquito was clustered in seven planning districts for Ae. albopictus and five planning districts for Cx. quinquefasciatus. Microhabitat (muddy water) rather than macrohabitats variables predicted both species’ colonization, especially Ae. albopictus. The contribution of macro- and microhabitat characteristics in predicting colonized mosquito in water-holding tires was discussed.

scholarly journals The Effect of Pyriproxyfen as a “Population Growth Regulator” against Aedes albopictus under Semi-Field Conditions

PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e67045 ◽  
Author(s):  
Shin-ya Ohba ◽  
Kazunori Ohashi ◽  
Endang Pujiyati ◽  
Yukiko Higa ◽  
Hitoshi Kawada ◽  
...  
Keyword(s):  
Population Growth ◽  
Aedes Albopictus ◽  
Growth Regulator ◽  
Field Conditions

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.

scholarly journals Oviposition of Aedes aegypti Linnaeus, 1762 and Aedes albopictus Skuse, 1894 (Diptera: Culicidae) under laboratory and field conditions using ovitraps associated to different control agents, Manaus, Amazonas, Brazil

2018 ◽  
Vol 62 (4) ◽  
pp. 304-310 ◽  
Author(s):  
William Ribeiro da Silva ◽  
Joelma Soares-da-Silva ◽  
Francisco Augusto da Silva Ferreira ◽  
Iléa Brandão Rodrigues ◽  
Wanderli Pedro Tadei ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Field Conditions

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

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 Ovicidal effects of thiacloprid, acetamiprid, lambda-cyhalothrin and alpha-cypermethrin on Bruchus pisorum L. (Coleoptera: Chrysomelidae) eggs

2011 ◽  
Vol 47 (No. 3) ◽  
pp. 109-114 ◽  
Author(s):  
M. Seidenglanz ◽  
J. Rotrekl ◽  
J. Poslušná ◽  
P. Kolařík
Keyword(s):  
Czech Republic ◽  
Field Conditions ◽  
Egg Survival ◽  
The Czech Republic ◽  
Real Effects ◽  
First Instar ◽  
Lambda Cyhalothrin ◽  
Ovicidal Effects ◽  
Bruchus Pisorum

The effects of two pyrethroid (lambda-cyhalothrin, alpha-cypermethrin) and two neonicotinoid (acetamiprid, thiacloprid) insecticides on B. pisorum L. eggs were compared under field conditions in the Czech Republic in 2005–2007. The main objective of the study was to find out what real effects can be expected from the available insecticides registered in Europe when applied at the time of the first egg occurrence on lower pods. In general, the rates of Bruchus pisorum egg (+ first instar larvae) survival were significantly lower with all the insecticides compared in the study, in each of the three years (2005, 2006, 2007). The tested insecticides showed some ovicidal effects and also some larvicidal effects. The tested pyrethroids (lambda-cyhalothrin, alpha-cypermethrin) showed somewhat higher effectiveness in comparison with the neonicotinoids (acetamiprid, thiacloprid). Alpha-cypermethrin was the most effective in all three years. In 2006 and in 2007 this insecticide significantly reduced the rates of egg survival in comparison with acetamiprid. In contrast, acetamiprid was the least effective insecticide in each of the three years.

Effects of irradiation, presence of females, and sugar supply on the longevity of sterile males Aedes albopictus (Skuse) under semi-field conditions on Reunion Island

Acta Tropica ◽  
2013 ◽  
Vol 125 (3) ◽  
pp. 287-293 ◽  
Author(s):  
Clelia F. Oliva ◽  
Marco J. Maier ◽  
Jeremie Gilles ◽  
Maxime Jacquet ◽  
Guy Lemperiere ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Field Conditions ◽  
Reunion Island ◽  
Réunion Island
Sign in / Sign up

Export Citation Format

Share Document