Table 2.
Insecticide susceptibility status of adult mosquito vector populations of Anopheles minimus to diagnostic concentrations of insecticides in northeastern states of India
| Study location, district, State [Reference] | Insecticide (Diagnostic concentration) | Study period | No. of mosquitoes exposed (No. of replicates) | No. of mosquitoes knockdown 60 min post-exposure | No. of mosquitoes dead 24 h post-exposure | Mortality (%) | Susceptibility status |
|---|---|---|---|---|---|---|---|
| Sonapur, Kamrup, Assam (Unpub. obs.)a | DDT (4%) | October, 1995 | 43 (5) | 43 | 43 | 100 | S |
| Agia, Goalpara, Assam (Unpub. obs.)a | October, 1995 | 13 (1) | 13 | 13 | 100 | S | |
| Sonapur, Kamrup, Assam [92] | July, 1999 | 80 (4) | 80 | 80 | 100 | S | |
| Sonapur, Kamrup, Assam | October, 2001 | 80 4) | 80 | 80 | 100 | S | |
| Sonapur, Kamrup, Assam [57] | November, 2005 | 80 (4) | 80 | 80 | 100 | S | |
| Dalu, West Garo Hills, Meghalaya [61] | June, 2007 | 30 (2) | 30 | 30 | 100 | S | |
| Bokajan, KarbiAnglong, Assam (Unpub. obs.)a | August, 2008 | 80 (4) | 80 | 80 | 100 | S | |
| Boginadai, Lakhimpur, Assam (Unpub. obs.)a | August, 2009 | 20 (2) | 20 | 20 | 100 | S | |
| Agia, Goalpara, Assam (Unpub. obs.)a | October, 2009 | 44 (4) | 44 | 44 | 100 | S | |
| Amarpur, South Tripura, Tripura (Unpub. obs.)a | October, 2010 | 10 (1) | 10 | 10 | 100 | S | |
| Sidli, Chirang, Assam (Unpub. obs.)a | October, 2012 | 24 (2) | 24 | 24 | 100 | S | |
| Silachari, South Tripura, Tripura [50] | September, 2012 | 40 (4) | 40 | 40 | 100 | S | |
| Sonapur, Kamrup, Assam [93] | Malathion (5%) | July, 1999 | 60 (3) | 60 | 60 | 100 | S |
| Sonapur, Kamrup, Assam [57] | Malathion (5%) | November, 2005 | 60 (3) | 60 | 60 | 100 | S |
| Sonapur, Kamrup, Assam [57] | Permethrin (0.75%) | November, 2005 | 40 (2) | 40 | 40 | 100 | S |
| Sonapur, Kamrup, Assam [57] | Alpha-cypermethrin (0.10%) | August, 2006 | 80 (4) | 80 | 80 | 100 | S |
| Sonapur, Kamrup, Assam [57] | Deltamethrin (0.05%) | November, 2005 | 40 (2) | 40 | 40 | 100 | S |
Abbreviations: S susceptible (mortality in control replicates was < 5%)
aUnpub. obs., unpublished observations