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Table 4 Summary of repellent, irritant and toxic effects of permethrin, DEET, carvacrol, geraniol, cuminaldehyde and cinnamaldehyde on Anopheles gambiae from reference strains, the susceptible Kisumu strain (Kis), the pyrethroid-resistant strain KdrKis and the OP-resistant strain AcerKis

From: Insecticide resistance modifies mosquito response to DEET and natural repellents

Product

Susceptible strain

Kis

Pyrethroid-resistant strain

kdrKis

OP-resistant strain

acerKis

Permethrin

R0 I+ T++

↓ R0 I− T−

↓ R0 I− T+

DEET

R0 I+ T+

↑ R+ I+ T0

↑ R++ I+ T+

Carvacrol

R+ I++ T0

↓ R+ I− T0

↓ R0 I− T0

Geraniol

R+ I+ T0

↑ R+ I++ T0

↓ R− I+ T0

Cuminaldehyde

R+ I++ T0

↑ R++ I++ T0

↓ R+ I+ T0

Cinnamaldehyde

R+ I+ T+

↑ R++ I+ T++

↑ R+ I+ T++

  1. Abbreviations: R, repellent; I, irritant; T, toxic; 0, no effect; +, effect; ++, higher effect; −, lower effect; ↓, reduced efficiency for the strain; ↑, greater efficiency for the strain compared with the susceptible strain Kis