Table 2.

Quantification of dieldrin residues in resistant male adults after insecticide selection applied on 1-day-old larvae for 6 or 24 h. For each exposure time, 1000 1-day-old larvae were exposed to a dieldrin concentration of 0.08 ppm. For each exposure time, all surviving larvae were pooled and reared until pupation. All pupae were manually sex sorted to determine both female contamination rate and male recovery. For each exposure time, 3 pools of 500 adult males each were used for dieldrin quantification.

Exposition Time (h)	Female Contamination (%)	Male Recovery (%)	Dieldrin (µg/L)	Dieldrin (µg/kg)	Dieldrin/Mosquito (µg)
0	45.57	100.00
6	0.68	90.70	2.05 (±0.07)	18.72 (±1.81)	8.32 × 10−6 (±3.08 × 10−7)
24	0.86	33.88	486 (±153.48)	3841.09 (±1427.40)	1.94 × 10−3 (±6.14 × 10−4)