Composition, Repellent, and Insecticidal Activities of Two South American Plants against the Stored Grain Pests Tribolium castaneum and Tribolium confusum (Coleoptera: Tenebrionidae)

Table 3

Average repellency of EOs of A. polystachya and A.  citriodora against T. castaneum and T. confusum.

Average distribution coefficient (DC%)^1									RC^b
Plant	Insect	𝐶^a	Hours after treatment					MR^c
			1	2	3	4	5
A. polystachya	T. castaneum	90	−13^a	20^a	13^a	40^a	20^a	16	I
		120	−6^a	−46^a	−60^a	−66^a	−80^a	−51.6	0
		314	46^a	33^a	66^a	53^a	46^a	48.8	III
	T.  confusum	90	93^a	86^a	73^a	93^a	93^a	87.6	V
		120	86^a	40^a	40^a	20^ab	33^a	43.8	III
		314	80^a	60^a	53^a	46^b	46^b	57	III
A. citriodora	T. castaneum	90	80^a	93^a	93^a	80^a	100^a	89.2	V
		120	93^a	86^a	73^a	100^a	80^a	74.4	IV
		314	80^a	80^a	66^a	93^a	93^a	82.4	V
	T.  confusum	90	93^a	100^a	100^a	100^a	86^a	95.8	V
		120	80^a	100^a	93^b	100^a	100^a	94.6	V
		314	93^a	86^a	80^b	80^a	67^a	81.2	V

1DC% = [(𝑁_𝑐−𝑁_𝑡)/(𝑁_𝑐+𝑁_𝑡)]×100; ^a𝐶: concentration (𝜇g cm⁻²); ^bRC: repellency class; ^cMR: mean rate.
Numbers in the same column of each plant followed by the same letters do not differ significantly in ANOVA test.