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Table 9 KDT 50 , KDT 95 and mortality of essential oils tested on the resistant strain of Anopheles gambiae

From: Chemical composition and insecticidal activity of plant essential oils from Benin against Anopheles gambiae (Giles)

Essential oils Diagnostic doses KDT50a KDT95a Mortality Susceptibilityb
(%) (min) (min) %  
Cymbopogon citratus 0.77 15.77 26.00 100 S
Cymbopogon giganteus 7.36 2.92 5.53 100 S
Cymbopogon schoenanthus 5.48 2.58 3.84 100 S
Eucalyptus citriodora 3.37 4.02 5.93 100 S
Eucalyptus tereticornis 2.80 3.56 5.27 100 S
Cochlospermum tinctorium 11.56 12.01 20.67 90.4 RS
Cochlospermum planchonii 15.22 11.35 30.72 100 S
Securidaca longepedunculata 9.84 2.87 4.47 94.8 RS
Chenopodium ambrosioides 4.26 3.96 5.84 98.0 S
Permethrin 0.75% 0.75 90.87 145.37 62.3 R
  1. KDT50: 50% knock down in mosquito’s population; KDT95: 95% knock down in mosquito’s population.
  2. aThe KDT (KDT50 and KDT95) values were expressed with 95% confidence limits.
  3. bS = Susceptible defined as 98-100% of mortality; RS = Resistance suspected defined as 90-97% of mortality; R = Resistance defined as <90% of mortality.