Effect of Gamma Irradiation on Female Culex pipiens quinquefasciatus

1968 ◽  
Vol 51 (1) ◽  
pp. 59 ◽  
Author(s):  
B. J. Smittle
Keyword(s):  
Gamma Irradiation ◽  
Culex Pipiens ◽  
Culex Pipiens Quinquefasciatus

scholarly journals Screening of Chemosterilants against the Southern House Mosquito Culex pipiens quinquefasciatus

1970 ◽  
Vol 53 (4) ◽  
pp. 215 ◽  
Author(s):  
M. D. Boston ◽  
R. S. Patterson ◽  
C. S. Lofgren
Keyword(s):  
Culex Pipiens ◽  
Culex Pipiens Quinquefasciatus

scholarly journals Effects of Propoxur Exposure on Insecticidal Susceptibility and Developmental Traits in Culex pipiens quinquefasciatus

Insects ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 288
Author(s):  
Xiaolei Zhang ◽  
Samuel Karungu ◽  
Quanxin Cai ◽  
Zhiming Yuan ◽  
Xiaomin Hu
Keyword(s):  
Culex Pipiens ◽  
Constitutive Expression ◽  
Adult Survivors ◽  
Lethal Concentration ◽  
P450 Monooxygenase ◽  
Resistance Development ◽  
Culex Pipiens Quinquefasciatus ◽  
Rate Of Increase ◽  
Developmental Traits ◽  
Net Reproduction

Propoxur-sel strains of Culex pipiens quinquefasciatus were derived from a lab-bred strain following 16 generations of propoxur exposure under sublethal concentrations of LC25 (lethal concentration of 25%) and LC50 (lethal concentration of 50%), respectively. This resulted in resistance development in F16 with ratios of 8.8× and 6.3×, respectively, compared with F0. The fecundity, longevity, sex ratio (F/M), and hatchability of the propoxur-exposed Cx. quinquefasciatus adult survivors and their offspring were decreased, with no effect on the emergence ratio and pupa survival rate. In addition, the intrinsic rates of increase (r), the net reproduction (R0), and the finite rate of increase (λ) of the Cx. quinquefasciatus offspring generations were also decreased significantly compared to F0. Correspondingly, the mean generation time (T) and the population double time (DT) in propoxur-sels were increased. Enhanced activities of cytochrome P450 monooxygenase and esterase were also observed in propoxur-sels, indicating that a detoxification mechanism might be responsible for resistance development in Cx. quinquefasciatus. Except for the three genes cyp4d42v1, cyp4c52v1, and cyp6aa9 which displayed a coincidence in some degree in different treatments, induction by different doses of propoxur and constitutive expression in different generations of propoxur-sel strains resulted in an inconsistent identification of the P450 genes probably related with resistance.

Chemotaxis of Culex Pipiens Quinquefasciatus Larvae (Diptera: Culicidae) in Response to Amino Acids

1983 ◽  
Vol 20 (6) ◽  
pp. 641-643 ◽  
Author(s):  
John T. Barber ◽  
Erik G. Ellgaard ◽  
Burton C. Plaster
Keyword(s):  
Amino Acids ◽  
Culex Pipiens ◽  
Culex Pipiens Quinquefasciatus

scholarly journals High malathion degradation in malathion resistant Culex pipiens quinquefasciatus

1984 ◽  
Vol 35 (3) ◽  
pp. 245-249 ◽  
Author(s):  
Tadashi MIYATA ◽  
Tetsuo SAITO ◽  
Kazuo YASUTOMI
Keyword(s):  
Culex Pipiens ◽  
Culex Pipiens Quinquefasciatus
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