Optimized simulation of the control of tsetse flies Glossina pallidipes and G. m. morsitans (Diptera: Glossinidae) using odour-baited targets in Zimbabwe

Bulletin of Entomological Research
J W Hargrove

Abstract

In 1984-1985 insecticide-treated targets were deployed in the 600-km2 Rifa Triangle, Zambezi Valley, Zimbabwe. Trap catches of Glossina pallidipes Austen were modelled using a function combining logistic growth with diffusive movement. A simulation routine was linked to a non-linear least-squares optimization programme and fits optimized with respect to population carrying capacities, rates of growth and movement, and to levels of imposed mortality. In March-September 1984, the overall additional mortality was 2% per day of adult female G. pallidipes, increasing thereafter to 8% per day, due to the deployment of more targets, the onset of the hot, dry season and the ground-spraying of the adjoining Zambezi escarpment with DDT. For G. m. morsitans Westwood the corresponding estimates were 1 and 2% per day. For both species, the deployment of four targets km(-2) in a closed population will ensure eradication. For G. m. morsitans a halving of target efficacy would reduce the killing rate to the point where eradication would be unlikely. Estimated daily displacements were c. 200 m for G. m. morsitans and 660 m for G. pallidipes. The lower rate for G. m. morsitans means that, while targets kill this species less effectively, re-inva...Continue Reading

References

May 24, 2003·Bulletin of Entomological Research·J W HargroveH M Kindness
Oct 4, 2005·Bulletin of Entomological Research·J O OumaE S Krafsur
Jan 21, 2014·Parasites & Vectors·Carlos Cordon-ObrasJean-Mathieu Bart
Aug 11, 2012·Journal of Invertebrate Pathology·M J VreysenJérémy Bouyer
Jun 16, 2009·Preventive Veterinary Medicine·E DucheyneP Van den Bossche
Jun 1, 2006·Advances in Parasitology·E M FèvreI Maudlin
Apr 10, 2019·PLoS Neglected Tropical Diseases·Damian KajunguriJ W Hargrove
Aug 7, 2020·Medical and Veterinary Entomology·J W Hargrove, G A Vale

Related Concepts

In Silico
Glossina
Seasonal Variation
Odors
Diptera
Glossinidae
Glossina pallidipes
Insect Control

Related Feeds

African Trypanosomiasis

African trypanosomiasis, also known as sleeping sickness, is an insect-borne parasitic disease of humans and other animals. It is caused by protozoa of the species Trypanosoma brucei and almost invariably progresses to death unless treated. Discover the latest research on African trypanosomiasis here.