Table 2. Logit regression of concentration-mortality response of Ceratitis capitata and Drosophila suzukii adults that consumed a range of concentrations of spinosad.

Bioassays were performed on three batches of C. capitata (both sexes) and an additional batch (4) in which each sex was treated separately.

Batch	Regression		LC50	95% C.I.		LD50	95% C.I.
	Slope ± SE	Intercept ± SE	μg a.i. /ml	Lower	Upper	ng a.i. /insect	Lower	Upper
Ceratitis capitata
1	2.84 ± 0.29	-2.19 ± 0.22	0.773	0.665	0.881	1.521	1.308	1.733
2	4.45 ± 0.40	-3.22 ± 0.28	0.723	0.640	0.806	1.423	1.259	1.586
3	5.72 ± 0.62	-3.87 ± 0.40	0.677	0.597	0.757	1.332	1.175	1.490
4 (♂)	4.05 ± 0.39	-3.39 ± 0.39	0.840	0.726	0.948	1.462	1.263	1.650
4 (♀)	5.17 ± 0.56	-3.55 ± 0.38	0.687	0.597	0.777	1.502	1.305	1.699
Drosophila suzukii
1	1.42 ± 0.14	-4.72 ± 0.46	3.330	3.223	3.437	2.927	2.799	3.336

LD₅₀ values were calculated based on LC₅₀ values and the volume of solution ingested on average by each species (shown in Table 1).