Insecticide Susceptibilities of Anopheles sinensis (Diptera: Culicidae) Larvae from Paju‐shi, Korea

Abstract

ABSTRCT A study was conducted to determine the susceptibility of Anopheles sinensis larvae, malaria vector, from Paju‐shi (Gyonggi‐do) to 24 pesticides including 11 pyrethroids, 11 organophosphates, 1 pyrazole analogue and another pesticide. The mosquito larvae showed the most highly susceptible to chlorfenapyr with LC50 of 0.0063 ppm followed by spinosad, temephos, fenthion and beta‐cyfluthrin with 0.03, 0.0366, 0.0367 and 0.0998 ppm, respectively, and fluvalinate (>128 ppm) was the least susceptible. Also, 11 pesticides of them were compared with Goyang strain (Gyonggi‐do) of data 1992. The development of resistance was noticed to cypermethrin and permethrin as much of 73.59 and 6.23 folds at LC50, respectively, and also fluvalinate was showed high resistance development. In generally, the pyrethroid insecticides were showed higher development of resistance than organophosphorus insecticides.

Studies on Anopheles sinensis, the vector species of vivax malaria in Korea

“…sinensis larvae to various insecticides including Bacillus thuringiensis israelensis (B.t.i.) and Bacillus sphaericus was tested by many researchers (Self et al, 1974;Kim, 1980, 1981;Ree et al, 1981b;Shim et al, 1987Shim et al, a, b, 1995Lee et al, 1996;Lee and Yu, 1999;Shin et al, 2003). These studies revealed that An.…”

Susceptibility and Resistance of Field Populations of Anopheles sinensis (Diptera: Culicidae) Collected from Paju to 13 Insecticides

“…Comparative analysis of data for larvae collected from the same locality in 2001 (AS01) and 2008 (AS08) was carried out for the 13 insecticides [10, 21] (Table 3). Chang et al [10] showed that AS08 exhibited decreased pyrethroid resistance compared to AS01, except for permethrin and deltamethrin.…”

“…Because An. sinensis breeds mainly in paddy fields, it is under heavy selection pressure due to the agricultural application of insecticides [10,21]. Pyrethroids have also been used for thermal fogging, residual spraying, and as a repellent applied to clothing at low concentrations for medical pests.…”

Enhanced Toxicity of Binary Mixtures ofBacillus thuringiensissubsp.israelensisand Three Essential Oil Major Constituents to WildAnopheles sinensis(Diptera: Culicidae) andAedes albopictus(Diptera: Culicidae)

“…sinensis breeds mainly in paddy Þelds, it is under heavy selection pressure due to the agricultural applications of insec- ticides ). Many of the insecticides currently used in South Korea have failed to control anopheline mosquitoes, most probably because of the development of resistance (Shin et al 2003, Chang et al 2009). However, Ae.…”

“…In particular, the use of conventional synthetic insecticides for the control of rice and veterinary pests has accelerated the evolution of insecticide resistance because rice paddies and domestic animal farms are good breeding sites for the anopheline mosquitoes (Shin et al 2003, Chang et al 2009). Increased levels of resistance to the commonly used insecticides have led to multiple treatments at excessively high application rates that raise serious human health and environmental concerns.…”