Figure 2. Comparative efficacy of repellent and insecticide–treated nets during A) first trial in dry season and B) second trial in rainy season. Blue lines indicate PM+DEET–treated nets; red lines indicate PM+KBR–treated nets, and green lines indicate Kothrin–treated nets. Curves drawn according to logistic plane regression of equation parameters, which are shown in Table 2. PM, pirimiphos methyl; DEET, diethyl-3-methylbenzamide; KBR, hydroxyethyl isobutyl piperidine carboxylate; Kothrin, 20% deltamethrin (Bayer Crop Science, Monheim am Rhein, Germany).