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UKAID Department for International Development (R4D) 2000

Environmental risks of insecticide-treated cattle in semi-arid livestock systems

Environment Insecticide Cattle Semi-Arid

UKAID Department for International Development (R4D)

Titre : Environmental risks of insecticide-treated cattle in semi-arid livestock systems

Pays : Zimbabwe

Projet de recherche pour le Développement : R7539

DFID Programme : Animal Health

Organismes de mise en œuvre

Lead Institutes : Environmental Science Department, Natural Resources Institute (ESD) ; Natural Resources Institute (NRI)
Managing Institutes : Natural Resources International Limited (NRIL)
Collaborating Institutes : EcoMark Limited ; Regional Tsetse and Trypanosomiasis Control Programme (Zimbabwe) (RTTCP) ; Tsetse and Trypanosomiasis Control Branch

Durée : 01-01-2000 à 30-03-2003

Apart from in the North, millions of square miles of Africa are infested with tsetse flies, whose transmission of trypanosomes seriously constrains livestock and crop production. Current thinking by government economists, who wish to contain the recurrent costs of state funded tsetse control, and of sociologists, who recommend farmer-based actions to enhance farmer engagement and ownership of tsetse control, has resulted in development agencies promoting community-based tsetse and trypanosomosis control ahead of area-wide schemes. In this scenario, the most appropriate method of tsetse control in rural/community areas is the application of insecticide to cattle, provided it is not prejudicial to health and agricultural production. The immediate geographical focus is sub-Saharan Africa, but the technological impact is applicable globally. The demand for research is from donors and development agencies (rather than farmers) who subscribe to the precautionary principle of protecting health and environments where risk cannot be assigned full scientific certainty. Responsible veterinary departments, such as those in member states of the regional tsetse and trypanosomosis control programme for southern Africa (EC DGVIII programmes) also recognise the need for the research, which emanated after trials in Zimbabwe showed high insecticide residue levels in ,pour-on, dung (RTTCP 1999). The implications of using the avermectins, the broad-spectrum veterinary parasiticides, on non-target biota and processes was the subject of some early research, but those of using insecticides, especially ones with systemic action, is not known for African farming systems and biomes. The FAO’s programme against African trypanosomosis (PAAT) meetings in Harare (1998) and Vienna (1998) have identified the potential problem of the technology, and the EDF FITCA programme is discussing insecticide-related impacts of targets and pour-ons as part of its environmental monitoring component. The project will confirm the potential health and environmental problems associated with the treatment of cattle with insecticides. The extent and importance of the problems will become evident so that the full implications and range of secondary effects can be understood and disseminated. These outputs will provide the regional, national and local authorities with the information required to advise farming communities, especially poor farmers in tsetse controlled areas, on effective and environmentally sound options for tsetse control.

Total Cost to DFID : £191,276

Présentation : UKAID

Page publiée le 17 octobre 2015, mise à jour le 28 octobre 2017