Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\26463070
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Insects
2015 ; 6
(1
): 122-32
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Insecticide Resistance in Eggs and First Instars of the Bed Bug, Cimex
lectularius (Hemiptera: Cimicidae)
#MMPMID26463070
Campbell BE
; Miller DM
Insects
2015[Jan]; 6
(1
): 122-32
PMID26463070
show ga
Two strains of the common bed bug, Cimex lectularius L., eggs and first instars
collected from pyrethroid-resistant adults were evaluated for insecticide
resistance and compared to a susceptible strain. Dose-response bioassays were
conducted using two insecticide formulations (Temprid: imidacloprid/?-cyfluthrin,
and Transport: acetamiprid/ bifenthrin). The lethal concentration (LC50) for the
two resistant egg strains exposed to imidacloprid/?-cyfluthrin ranged from 3 to
5-fold higher than susceptible strain eggs. Resistant strain eggs dipped into
formulations of acetamiprid/bifenthrin had LC50 values which were significantly
greater (39 to 1,080-fold) than susceptible strain eggs. Similar to eggs,
resistant strain first instars exposed to residual applications of
imidacloprid/?-cyfluthrin had LC50 values ranging from 121 to 493-fold greater
than susceptible strain first instars. When resistant strain first instars were
treated with acetamiprid/bifenthrin, they had LC50 values that were 99 to
>1,900-fold greater than susceptible strain first instars. To determine
differences between egg and first instar resistance, stage resistance ratios
(SRR) were compared between the two stages. There was little difference between
the egg and first instar stages, indicated by small SRR values ranging from 1.1
to 10.0. This study suggests that insecticide resistance is expressed early
during bed bug development.