Table 3 Proportion of sites showing resistance of An. funestus s.l. to various insecticides in Tanzania from 1997 to 2017
Insecticide class | Insecticide | No. of study sites with mortality rates < 90%/Total No. of study sites (%) | |||
|---|---|---|---|---|---|
1997–2000 | 2001–2005 | 2006–2010 | 2011–2017 | ||
Pyrethroids | Permethrin | – | – | – | 2/3 (66.7%) |
Deltamethrin | – | – | – | 1/1 (100%) | |
Lambda cyhalothrin | – | – | – | 1/1 (100%) | |
Organochlorine | DDT | – | – | – | 2/2 (100%) |
Dieldrin | – | – | – | 1/2 (50%) | |
Carbamates | Bendiocarb | – | – | – | 0/2 (0.0%) |
Propoxur | – | – | 0/1(0.0%) | 0/1 (0.0%) | |
Organophosphates | Pirimiphos methyl | – | – | – | 0/2 (0.0%) |
Malathion | – | – | 0/1 (0.0%) | 0/1 (0.0%) | |