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Table 1 Summary of the experiments in relation to research questions

From: Evaluating putative repellent ‘push’ and attractive ‘pull’ components for manipulating the odour orientation of host-seeking malaria vectors in the peri-domestic space

  TEST treatment CONTROL treatment Human landing catch Test and control independent or in competitiona
Experiment 1
 What is the human biting rate of Anopheles arabiensis released in the semi-field systems between 19.00 and 23.00 h in the absence of any treatment?
 Are the two semi-field systems comparable in the results they generate?
 Are there any differences in catching efficiency/attractiveness of HLC volunteers?
1.1 No treatment No treatment Yes Independent
Experiment 2
 Can Citriodiol® and/or transfluthrin-treated strips located at eave gaps reduce An. arabiensis biting rates compared to untreated controls?
 2.1 1 g/m2 microencapsulated Citriodiol® Untreated cotton fabric Yes Independent
 2.2 11 g/m2 microencapsulated Citriodiol® Untreated cotton fabric Yes Independent
 2.3 1.25 g/m2 transfluthrin fabric Untreated hessian fabric Yes Independent
 2.4 2.5 g/m2 transfluthrin fabric Untreated hessian fabric Yes Independent
Experiment 3
 How effective is the MB5 baited Suna trap in attracting insectary-reared An. arabiensis in a large semi-field system in the absence and presence of a human being?
 How does the MB5 cartridge perform in comparison to nylon strips impregnated by investigator?
 Does 2-butanone combined with MB5 perform equally well in attracting insectary-reared An. arabiensis in a large semi-field system as CO2 produced from molasses fermentation?
 How does the trapping efficacy compare between Suna traps baited with CO2only and Suna traps baited with the synthetic MB5 lure in addition to CO2?
3.1 MB5-cartridge baited Suna trap supplemented with CO2 MB5-nylon strip baited Suna trap supplemented with CO2 No Competing
3.2 MB5-cartridge baited Suna trap with 2-butanone MB5-cartridge baited Suna trap with CO2 No Competing
3.3 MB5-cartridge baited Suna trap with 2-butanone Unbaited Suna trap (no MB5, no CO2, only suction fan) No Competing
3.4 MB5-cartridge baited Suna trap with CO2 Unbaited Suna trap (no MB5) supplemented with CO2 only No Competing
3.5 MB5-cartridge baited Suna trap supplemented with CO2 Unbaited Suna trap (no MB5, no CO2, only suction fan) Yes Independent
3.6 MB5-cartridge baited Suna trap with 2-butanone Unbaited Suna trap (no MB5, no CO2, only suction fan) Yes Independent
Experiment 4
 Can Citriodiol® and/or transfluthrin-treated strips located at eave gaps reduce An. arabiensis biting rates compared to untreated controls?
4.1 Transfluthrin 2.5 g/m2 eave wrap + MB5-cartridge and with CO2 Untreated eave wrap + unbaited Suna trap Yes Independent
  1. aTwo semi-field systems were used for testing test and control treatments independently but concurrently. The treatments were randomly allocated to the two systems. Competing tests were set in the same semi-field system