Genetics, cross-resistance and realized heritability of resistance to acetamiprid in generalist predator, Chrysoperla carnea (Steph.) (Neuroptera: Chrysopidae)

Egyptian Journal of Biological Pest Control

Table 2 Response of Lab-PK, resistant, reciprocal crosses and backcross strains of Chrysoperla carnea to acetamiprid

Strain	LC₅₀ (95% FL) (μg mL^-1)	Fit of probit line				N^a	RR^b	D_LC
Strain	LC₅₀ (95% FL) (μg mL^-1)	Slope (±SE)	χ²	df	P	N^a	RR^b
Lab-PK strain	0.72 (0.45-0.95)	2.26 (0.36)	1.48	3	0.86	350	1	1
Aceta-SEL strain	22370.54(12089.78-99622.35)	1.25 (0.28)	0.30	3	0.82	350	31070.19	1
F₁ (Aceta-SEL ♂ × Lab-PK ♀)	7583.75 (5541.965-12992.84)	1.35 (0.23)	0.91	3	0.82	350	10532.98	0.79
F_1' (Aceta-SEL♀ × Lab-PK ♂)	4603.76 (3557.35-6620.51)	1.32 (0.22)	0.16	3	0.98	350	6394.11	0.69
F₂ (F₁ ♂ × F₁ ♀)	6285.34 (4051.66-11800.39)	1.14 (0.31)	0.07	3	1.00	160	872963	0.75
BC₁ (F₁♀× Lab-PK ♂)	5754.58 (4360.84-8907.63)	1.92 (0.36)	0.24	3	0.97	160	7992.47
BC₂ (F₁ ♂ × Lab-PK ♀)	5624.78 (3977.93-10535.84)	1.45 (0.33)	0.17	3	0.98	160	7812.19
BC₃ (F_1' ♀ xLab-PK ♂)	4704.73 (3314.27-8457.31)	1.35 (0.31)	0.34	3	0.95	160	6534.34
BC₄ (F_1' ♂ × Lab-PK ♀)	3050.51 (2299.82-4117.92)	1.76 (0.33)	0.38	3	0.94	160	4236.81

N^a Number of total larvae used for bioassay including control
RR^b Resistance ratio calculated as LC₅₀ of the Aceta-SEL, F₁, F_1', F₂ (reciprocal), and backcross strains/LC₅₀ of the Lab-PK strain