Skip to main content

Table 1 Relative trapping efficacy of human landing catch (HLC), mosquito-electrocuting traps (METs) and BG-Sentinel (BGS) traps evaluated individually in a no-choice test and in competition with HLC in a choice test, in the presence of two freestanding transfluthrin passive emanators (treatment) and with no transfluthrin (control)

From: Semi-field evaluation of the exposure-free mosquito electrocuting trap and BG-Sentinel trap as an alternative to the human landing catch for measuring the efficacy of transfluthrin emanators against Aedes aegypti

  Transfluthrin Control
  Total recapture (% released) “Trap” recapture position 1
(% recaptured)
HLC recapture position 2
(% recaptured)
Relative trapping efficacya OR (95% CI)b P-value Total recapture (% released) “Trap” recapture position 1
(% recaptured)
HLC recapture position 2
(% recaptured)
Relative trapping efficacya OR (95% CI)b P-value
No-choice             
HLC   192 (24) 1 1   571 (71) 1 1
MET   163 (20) 0.85 0.82 (0.69–1.14) 0.245   372 (47) 0.63 0.34 (0.25–0.46)  < 0.001
BGS   174 (22) 0.91 0.89 (0.64–1.24) 0.490   487 (61) 0.85 0.61 (0.45–0.83) 0.002
Choice             
HLC + HLC 402 (50) 208 (26) 194 (24) 1 1 711 (89) 335 (42) 376 (47) 1 1
MET + HLC 232 (29) 22 (2) 210 (26) 0.11 0.07 (0.04–0.13)  < 0.001 480 (60) 96 (12) 384 (48) 0.29 0.18 (0.13–0.25)  < 0.001
BGS + HLC 307 (38) 38 (5) 269 (34) 0.18 0.05 (0.02–0.13)  < 0.001 618 (77) 53 (7) 565 (71) 0.16 0.09 (0.05–0.15)  < 0.001
  1. The average proportion of released mosquitoes that was recaptured in the transfluthrin and control arm is presented as well as the total number of mosquitoes recaptured by each method out of 800 Aedes aegypti mosquitoes released over eight replicates
  2. aRelative trapping efficacy of METs and BGS traps compared to HLC in no-choice and choice tests in both the treatment and the control arms (both in position 1)
  3. bThe odds ratio (OR) estimates were derived from Stata output adjusted for temperature and humidity and presented with a 95% confidence interval