Sticky small target : an effective sampling tool for tsetse fly Glossina fuscipes fuscipes Newstead, 1910

Loading...
Thumbnail Image

Authors

Mbewe, Njelembo J.
Saini, Rajinder K.
Torto, Baldwyn
Irungu, Janet
Yusuf, Abdullahi Ahmed
Pirk, Christian Walter Werner

Journal Title

Journal ISSN

Volume Title

Publisher

BioMed Central

Abstract

BACKGROUND : Small targets comprising panels of blue and insecticide-treated black netting material each 0.25 × 0. 25 m have been shown to attract and kill Glossina fuscipes fuscipes Newstead, 1910 (Diptera: Glossinidae) thereby reducing its population density by over 90% in field trials. However, their attractive ability has not been fully exploited for sampling purposes. Therefore, in this study we assessed the effectiveness of using sticky small targets as sampling tools for G. f. fuscipes in western Kenya. We also determined the influence of colour on the landing response of female and male flies on sticky small targets. METHODS : Using a series of randomised block experiments, the numbers of tsetse flies caught with sticky small targets were compared with those caught with biconical traps. A negative binomial regression was used to model fly catches. Odds ratios as measures of association between the landing response on the blue or black panel of the sticky small target and the sex of flies were obtained from a multiple logistic regression. RESULTS : The results showed that sticky small targets caught 13.5 and 3.6 times more female and male tsetse flies than biconical traps (Z = 9.551, P < 0.0001 and Z = 5.978, P < 0.0001, respectively). Females had a 1.7 times likelihood of landing on the black panel than males (Z = 2.25, P = 0.025). CONCLUSION : This study suggests that sticky small targets are an effective sampling tool for G. f. fuscipes. Therefore, we recommend the use of sticky small targets as an alternative to biconical traps for observational and experimental investigations of G. f. fuscipes.

Description

Keywords

Riverine tsetse flies, Small targets, Sampling, Behaviour, Density, Surveillance, Human African trypanosomiasis (HAT), Morsitans, Visual control devices, Glossina tachinoides, Diptera, Baits, Flies, Sleeping sickness, Cost effectiveness

Sustainable Development Goals

Citation

Mbewe, N.J., Saini, R.K., Torto, B. et al. 2018, 'Sticky small target : an effective sampling tool for tsetse fly Glossina fuscipes fuscipes Newstead, 1910', Parasites and Vectors, vol. 11, pp. 1-7.