Comparing trap designs and methods for assessing density of synanthropic flies in Odisha, India

Details

• Alternative Title:
  Parasit Vectors
• Personal Author:
  Bell, Melissa ; Irish, Seth ; Schmidt, Wolf Peter ; Nayak, Soumya ; Clasen, Thomas ; Cameron, Mary
• Description:
  Background
  
  There are many different traps available for studying fly populations. The aim of this study was to find the most suitable trap to collect synanthropic fly populations to assess the impact of increased latrine coverage in the state of Odisha, India.
  
  Methods
  
  Different baits were assessed for use in sticky pot traps (60% sucrose solution, 60 g dry sucrose, half a tomato and an non-baited control), followed by different colours of trap (blue versus yellow) and finally different types of trap (baited sticky pot trap versus sticky card traps). The experiments were undertaken in a semi-urban slum area of Bhubaneswar, the capital of Odisha. The first experiment was conducted in 16 households over 30 nights while experiments 2 and 3 were conducted in 5 households over 30 nights.
  
  Results
  
  The traps predominantly caught adult Musca domestica and M. sorbens (78.4, 62.6, 83.8% combined total in experiments 1–3 respectively). Non-baited traps did not catch more flies (median 7.0, interquartile range, IQR: 0.0–24.0) compared with baited traps (sucrose solution: 6.5, 1.0–27.0; dry sucrose: 5.0, 0.5–14.5; tomato: 5.0, 1.5–17.5). However, there were significantly more flies collected on blue sticky pot traps, which caught nearly three times as many flies as yellow sticky pot traps (Incidence Rate Ratio, IRR = 2.91; 95% CI: 1.77–4.79); P < 0.001). Sticky card traps (27, 8–58) collected significantly more flies than the non-baited sticky pot traps (10, 1.5–30.5).
  
  Conclusions
  
  Blue sticky card traps can be recommended for the capture of synanthropic fly species as they are non-intrusive to residents, easy to use, readily allow for species identification, and collect sufficient quantities of flies over 12 hours for use in monitoring and control programmes.
  
  
• Subjects:
  Animals Diptera Houseflies Insect Control Population Density Research Sucrose Toilet Facilities
• Source:
  Parasit Vectors. 12
• Pubmed ID:
  30732628
• Pubmed Central ID:
  PMC6367737
• Document Type:
  Journal Article
• Funding:
  OPP1008048/Bill & Melinda Gates Foundation/
• Place as Subject:
  India
• Volume:
  12
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:64ca46e64d32a3f9d9b135dce0c61eaa99807bd94c5b832f3d45c968b44618eb
• Download URL:
  https://stacks.cdc.gov/view/cdc/78016/cdc_78016_DS1.pdf
• File Type:
  [PDF - 1001.75 KB ]