DODECAGON MAZE BIOASSAY TO ASSESS COLOUR BAIT PREFERENCES OF HOUSE FLIES
2022
S.T. Bino Sundar | T.J. Harikrishnan | Bhaskaran Ravi Latha | T.M.A. Senthil Kumar | G. Sarath Chandra | Serma Saravana Pandian
Colour bait preferences of Musca domestica (house fly) was evaluated in a dodecagon maze. Flies collected from a poultry unit maintained in an in sectary were used for the study. An acrylic dodecagon maze was fabricated with dimensions 30 cm L x 25.5 cm B x 26 cm H with a lid. Twelve chambers were colour coded with red, black, blue, green, yellow and white in duplicate. House flies were swiftly released into the central chamber of dodecagon maze in batches, lid closed, observed for 30 min. Out of the total 718 house flies evaluated, 81.05 per cent (582 flies) responded to different colours whereas 5.01 per cent (36 flies) were non responders. Out of the 582 house flies responded to different colours, 30.41 per cent (177 flies), 21.99 per cent (128 flies), 16.32 per cent (95 flies), 14.43 per cent (84 flies), 10.48 per cent (61 flies) and 6.35 per cent (37 flies) preferred red, black, green, yellow, blue and white colours, respectively. Preference of house flies towards different colours compared to white was found to be highly significant statistically. Findings of the present study indicate that red being the most preferred colour, it can be used in house fly traps.
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