Table
8.5. Efficacy of Several Mosquito Larvicides
Insecticide and
Dosage: actual
Residual
Reference
formulation"
insecticide
Species
duration
Glancey et 01. (1968)
Temephos EC
1.0 ppm
Ae. oegypti
>34 weeks
Temephos gf
1.0 ppm
>34 weeks
Chlorpyrifos EC
1.0 ppm
4-5 weeks
Geevarghese et 01. (1977)
Temephos
1.0 ppm
Ae. oegypti
8-12 weeks
Temephos
1.0 ppm
Ae. aegypti
4-6
weeks
Cooney and Pickard (1974)
Chlorpyrifos gf
0.10 Ib/acre
Floodwater
>11->25 days
Temephos gf
0.10 Ib/acre
mosquitoes
4 days
Chlorpyrifos gf, pr
0.10 Ib/acre
>30 days
Chlorpyrifos EC, pr
0.10 Ib/acre
>14 days
Temephos gf,
pr
0.10 Ib/acre
<14 days
Fontaine and Rosen (1973)
Temephos gf
1.0 ppm
An. gambiae
27 days
Temephos EC
1.0 ppm
24 days
McNeill et 01. (1968)
Chlorpyrifos gf
0.5lb/acre
C. quinquefasciotus
72 days
Chlorpyrifos EC
0.5lb/acre
108 days
Steelman et 01. (1967)
Chlorpyrifos EC
1.0 ppm
C. quinquefasciotus
144 days
Temephos EC
1.0 ppm
20 days
Propoxur EC
1.0 ppm
20 days
Naled EC
1.0 ppm
19 days
Fenthion EC
1.0 ppm
18 days
Malathion EC
1.0 ppm
2 days
Lewis et 01. (1966)
Chlorpyrifos EC
1.0 ppm
C.p. pipiens
23 days
Fenthion EC
1.0 ppm
14 days
Mulla et 01. (1970)
Chlorpyrifos EC
0.3lb/acre
Culex
spp.
77 days
Temephos EC
0.3lb/acre
>28 days
Fenthion EC
0.4 Ib/acre
7-21 days
• EC, emulsifiable concentrate; gf, granular fonnulation; pr, prellood application.