Diatomaceous Earths

Output 3: Study of the user acceptability of DEs and the registration of DEs for use as grain protectants in both Zimbabwe and Tanzania

Progress report:

Before user acceptability can be tested by households in Zimbabwe there is a legal requirement that DEs first be approved for registration. Following the success of the project's field trials in Zimbabwe from 1998 to 2000, a private company has now made an application for temporary registration of Protect-It as a grain protectant. It is hoped that the private sector in Tanzania will also be keen to get involved following this first season field trials. Awareness raising visits have been made to Monsanto, Mukpar Ltd, Twiga Chemicals, Balton Tanzania Ltd and Tropical Pesticide Research Institute (TPRI).

Participatory DE trials evaluating efficacy, cost, taste, cooking, brewing and application user acceptability will begin in Zimbabwe during the storage season 2003/2004 following successful temporary registration of Protect-It there.

Communities were involved in evaluating the quality of grain stored using the different grain protectants following the first season storage trials in Tanzania during field days in April and May 2003.

During the 2003/2004 storage season Tanzanian farmers have initiated their own storage trials with the objective of identifying the factors that influence different groups of farmers in their assessment and utilisation of grain storage protectants generally, and to assess the DE technology in particular.

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Updated: 17/9/03