First Report on Intensity Bioassays for Pyrethroid Resistance in Anopheles culicifacies s.l in District Dindori of Madhya Pradesh State and Districts Kanker and Bastar of Chhattisgarh State, India

Table 1

Intensity bioassay test of Anopheles culicifacies against pyrethroid insecticides in district Dindori (Madhya Pradesh state) and districts Kanker and Bastar in Chhattisgarh state in the Year 2022

Districts (State)	Test/ Control	Insecticide/ Control	No. exposed (Replicates)	No. knocked down 1 hr	No. dead 24 hr	% knocked down 1 hr	% mortality 24 hr	Susceptibility status
Dindori (Madhya Pradesh	Test	Alphacypermethrin 0.25% (5X)	100 (5)	98	99	98	99	Susceptible
		Deltamethrin 0.25% (5X)	100 (5)	99	100	99	100	Susceptible
	Control	Pyrethroid	60 (3)	0	0	0	0	NA
Kanker (Chhattisgarh)	Test	Alphacypermethrin 0.25% (5X)	40 (2)	31	37	77.5	92.5	Moderate Resistance
		Alphacypermethrin 0.5% (10X)	20 (1)	18	20	90	100	Susceptible
		Deltamethrin 0.25% (5X)	40 (2)	37	38	92.5	95	Moderate Resistance
		Deltamethrin 0.5% (10X)	20 (1)	20	20	100	100	Susceptible
	Control	Pyrethroid	60 (3)	0	0	0	0	NA
Bastar (Chhattisgarh)	Test	Alphacypermethrin 0.25% (5X)	80 (4)	74	79	92.5	98.8	Susceptible
		Deltamethrin 0.25% (5X)	80 (4)	80	80	100	100	Susceptible
	Control	Pyrethroid	80 (4)	0	2	0	2.5	NA

Susceptible—98-100% mortality; moderate resistance (5X)—<98% mortality.