scholarly journals Spatial repellency of metofluthrin-impregnated multilayer paper strip against Aedes albopictus under outdoor conditions, Nagasaki, Japan

2004 ◽  
Vol 55 (3) ◽  
pp. 211-216 ◽  
Author(s):  
Tamara Belzabel Obispo ARGUETA ◽  
Hitoshi KAWADA ◽  
Masahiro TAKAGI
2021 ◽  
Author(s):  
Ru Yan ◽  
Qiaoling Zhou ◽  
Zhanyi Xu ◽  
Yuyan Wu ◽  
Guonian Zhu ◽  
...  

2019 ◽  
Vol 44 (1) ◽  
pp. 89-93 ◽  
Author(s):  
Jose Luis Torres Estrada ◽  
Keila Elizabeth Paiz Moscoso ◽  
Ildefonso Fernández Salas ◽  
Nicole L. Achee ◽  
John Paul Grieco

2021 ◽  
Vol 66 (1) ◽  
pp. 40-46
Author(s):  
Hussein Sanchez-Arroyo

Aedes albopictus and Apis mellifera were exposed to six insecticide active ingredients and five commercial insecticide formulations by topical application and insecticide-impregnated paper strips respectively to determine the differential toxicity and the potential use of the two methods in insecticide resistance monitoring surveys. By topical application deltamethrin was the most toxic active ingredient (LD 50 = 0.018 µg/g) for Ae. albopictus whereas chlorpyrifos was the least toxic (LD 50 = 0.499 µg/g). For Apis mellifera, the most toxic active ingredients were bifenthrin (LD 50 = 0.047 µg/g) and deltamethrin (LD 50 = 0.055 µg/g) while chlorpyrifos (LD 50 = 0.215 µg/g) and permethrin (LD 50 = 0.287 µg/g) had comparatively low toxicity. When the insecticide-impregnated method was used, Mosquito Mist (a.i. chlorpyrifos) was the most toxic commercial formulation for both Ae. albopictus (LC50 = 0.028 µg/cm2 ) and A. mellifera (LC50 = 0.059 µg/ cm2 ). Duet and DeltaGard showed the least toxicity (LC50 = 2.429 µg/cm 2 and LC50 = 0.491 µg/cm 2 respectively) for Ae. albopictus and DeltaGard was the least toxic to A. mellifera (LC50 = 18.09 µg/cm2 ). When using the topical application method with insecticide active ingredients, more than 3 times permethrin and deltamethrin were required to obtain the same mortality rate in A. mellifera as in Ae. albopictus. However, chlorpyrifos was more toxic for A. mellifera than for Ae. albopictus. In the insecticide-impregnated paper-strip method with commercial insecticide formulations, more than 36 times of DeltaGard was required to obtain the same mortality rate in A. mellifera as in Ae. albopictus. Even though the Mosquito Mist is the most toxic commercial formulation for both insect species, A. mellifera were more than 2 times tolerant to this insecticide compared to Ae. albopictus. The study concludes the active ingredient deltamethrin or its commercial formulation DeltaGard is the best among tested insecticides to control Ae. albopictus with minimal effects to A. mellifera.


2017 ◽  
Vol 79 (04) ◽  
pp. 299-374
Author(s):  
R Oehme ◽  
N Becker ◽  
A Jöst
Keyword(s):  

ENTOMON ◽  
2018 ◽  
Vol 43 (4) ◽  
pp. 223-230
Author(s):  
S. Sunil Kumar ◽  
D.A. Evans ◽  
K. Muthulakshmi ◽  
T. DilipKumar ◽  
R. Heera Pillai ◽  
...  

Mosquito index study of three ecologically different ecozones of the Thiruvananthapuram district, Kerala showed sharp difference on the proportionate distribution of Aedes aegypti and Aedes albopictus. Human dengue viremia (HDV) was very high in those ecozones where A.aegypti density was high and HDV was low where A.albopictus was high. In a coastal zone of Thiruvananthapuram city, A. aegypti was the most abundant vector and in a hilly, arid suburban zone, A.albopictus was the abundant vector. In the urban zone both species of mosquitoes showed equal distribution. Study on the circulating serotypes in the serum of HDV by Single step single tube Multiplex PCR showed all the four serotypes viz DENV1, DENV2, DENV3 and DENV4 in patients of Thiruvananthapuram city, which indicated the possibility of Dengue Shock Syndrome, unless there is efficient vector management. Among the four dengue serotypes, Type 1 was the most abundant virus. Abundance of microhabitats in Thiruvananthapuram city, which support A. aegypti may be the reason for high prevalence of dengue fever in the urban zone.


Sign in / Sign up

Export Citation Format

Share Document