Table 1.

LC₅₀ values (mg or µg of active ingredient per gram of diet) for first instars determined by probit analysis for three navel orangeworm strains after 48 h on diets containing phytochemicals (xanthotoxin, bergapten, chlorogenic acid, and bifenthrin)

Chemical	Strain	LC50	95% confidence limit lower	95% confidence limit upper
Xanthotoxin
	CPQa	4.52 mg/g	2.90	5.85
	FIG	9.39 mg/g	8.18	10.97
	R347	11.56 mg/g	9.77	14.59
Bergapten
	CPQa	6.48 mg/g	3.11	8.79
	FIG	15.21 mg/g	11.36	27.14
	R347	16.93 mg/g	11.90	49.15
Chlorogenic acid
	CPQa	7.44 mg/g	5.67	9.08
	FIG	16.75 mg/g	13.22	25.80
	R347	19.57 mg/g	14.43	42.41
Bifenthrin
	CPQa	0.38 µg/g	0.31	0.46
	R347bc	1.88 µg/g	1.36	2.46
	FIGd	7.2 µg/g	5.35	11.08

^aCPQ strain differs from R347 and FIG strains.

^bR347 strain differs from CPQ and FIG strains.

^cLC50 value from Demkovich et al. 2015b.

^dFIG strain differs from R347 and CPQ strains.