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Table 2 Amount of temephos sand granules (1%) utilized in Ceará for controlling Aedes aegypti larvae.

From: Insecticide resistance in Aedes aegypti populations from Ceará, Brazil

    Resistance ratio to
temephos (RR95)
Populations Number of houses
treated with temephos
(2002 to 2009)
Use of temephos
from 2002 to 2009
(Kg)
(2003)** (2009)
Crato 1059.507 60352.7 9.0 192.7
Barbalha 447.043 29219.0 7.5 30.0
Juazeiro do Norte 2093.937 0* 10.4 7.2
  1. * In this period temephos was substituted by Bacillus thuringienis israelensis (Bti).
  2. ** Resistance ratio evaluated by Lima et al., (2006).