Medicinal Uses, Phytochemistry, Pharmacology, and Toxicology of Mentha spicata

Table 6

Insecticidal activity of Mentha spicata.

Part used	Extracts	Tested strains	Key results	Reference
Leaves	Essential oil	Rhyzopertha dominica	LD50 = 6.1 μL/mL	[65]
			Mortality = 43% after 96 hours at a concentration of 2 μL/mL
			Repellent effect = 56.2% at a concentration of 2 μL/mL
Leaves	Essential oil	Rice weevil Sitophilus oryzae	LC50 = 100.16 μL/L air; LC95 = 192.197 μL/L air; mortality = 22% at a concentration of 71.43 μL/L air; LT50 = 45.52 h	[93]
Aerial parts	Essential oil	Callosobruchus chinensis	Mortality = 100% after 12 h at concentration of 0.1 μL/mL air	[66]
			LC50 = 0.003 μL/mL air
			LC90 = 0.005 μL/mL air
			Repellency value = 100% at 0.025 µL/mL air of oil concentration
			98% oviposition deterrence at 0.1 μL/mL concentration
	Essential oil	Sitophilus granarius	Mortality = 43% at the 24 h exposure test	[94]
			Mortality = 80% at the 48 h exposure test
Whole flowering plants	Essential oil	Acanthoscelides obtectus	LC50 = 1.2 mL/L air, for males	[95]
			LC50 = 4.4 mL/L air, for females
	Essential oil	Boophilus annulatus	Embryonated eggs (LC50 = 1.20%); unfed larvae (LC50 = 0.90%); fed females (LC50 = 10.57%)	[96]
Leaves	oil	Callosobruchus maculatus	LC50 = 235 ppm	[92]
	Essential oil	Culex quinquefasciatus Say	LC50 = 92 mg/L	[3]
			LC90 = 160 mg/L
Leaves	Essential oil	C. quinquefasciatus	LC50 = 62.62 ppm; LC90 = 118.70 ppm	[38]
			Mortality = 96.8 ± 1.2% at a concentration of 125 ppm
		A. aegypti	LC50 = 56.08 ppm; LC90 = 110.28 ppm
			Mortality = 98.1 ± 1.2% at a concentration of 125 ppm
		A. stephensi	LC50 = 49.71 ppm; LC90 = 100.99 ppm
			Mortality = 99.6 ± 1.6% at a concentration of 125 ppm