Various Levels of Cross-Resistance to <i>Bacillus sphaericus</i> Strains in <i>Culex pipiens</i> (Diptera: Culicidae) Colonies Resistant to <i>B. sphaericus</i> Strain 2362

Abstract excerpt

We studied the cross-resistance to three highly toxic Bacillus sphaericus strains, IAB-59 (serotype H6), IAB-881 (serotype H3), and IAB-872 (serotype H48), of four colonies of the Culex pipiens complex resistant to B. sphaericus 2362 and 1593, both of which are serotype H5a5b strains. Two field-selected highly resistant colonies originating from India (KOCHI, 17,000-fold resistance) and France (SPHAE, 23,000-fold...

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