Comparative evaluation of insecticidal properties of essential oils of some selected botanicals as bio-pesticides against Cowpea bruchid, Callosobruchus maculatus (Fabricius) [Coleoptera: Chrysomelidae]

Bulletin of the National Research Centre

Table 3 Effects of essential oils on the insect biology and seed weight loss by Callosobruchus maculatus

Botanicals	Dose (ml)	Oviposition	Adult emergence	Weight loss (%)
Aframomum melegueta	0	180.33^a	62.67^a	7.73^a
	1	125.00^ab	37.33^ab	4.32^b
	3	91.00^b	24.33^b	2.98^b
	5	92.67^b	14.33^c	1.91^c
Ficus exasperate	0	168.00^a	68.67^a	9.40^a
	1	155.67^ab	38.67^ab	4.89^b
	3	140.33^b	29.33^b	3.40^b
	5	129.33^c	18.00c	2.48^b
Tetrapleura tetraptera	0	165.67^a	68.67^a	7.62^a
	1	103.67^b	38.67^b	3.98^b
	3	105.67^b	29.33^b	2.33^b
	5	105.67^b	18.00^b	1.08^c
Annona muricata	0	152.33a	61.00^a	7.55^a
	1	143.67^ab	34.67^ab	4.53^ab
	3	120.67^b	22.00^b	2.93^b
	5	117.67^b	3.67^c	0.59^c
Eucalyptus globules	0	159.33^a	62.33^a	8.69^a
	1	107.33^ab	32.67^b	4.05^ab
	3	115.33^ab	23.67^bc	2.30^b
	5	85.67^b	15.33^c	2.13^b

Means followed by the same letter along the column were not significantly different at 5% using Tukey’s test