Two models of deltamethrin impregnated targets--Hanotier's tyre-trap and Laveissière's screen--were tested during the 1992 and 1993 dry seasons in Northern Benin to study their efficacy in the control of Glossina tachinoides. The screens were rapidly very effective (a decline of flies from 80 to 100% was observed) whereas the use of tyre-traps did not lead to a significant reduction of Glossina density.