In Vitro Evaluation of Antimicrobial Activity of Alimentary Canal Extracts from the Red Palm Weevil, Rhynchophorus ferrugineus Olivier Larvae

Table 3

The effect of different extracts on the growth inhibition zone of tested microbes after 96 hours of treatment.

Microbial species	Origin of extract	ANOVA of growth inhibition zone size
		Mean	Variance			value
E. coli	G	20.00	13.33	3.49	4.91	0.0188
	F	25.75	2.25
	M	19.00	18.00
	H	19.00	0.67
Klebsiella sp.	G	17.25	0.917	3.49	6.98	0.0057
	F	23.25	2.250
	M	17.25	0.250
	H	19.25	14.92
E. faecalis	G	21.25	16.92	3.49	25.38
	F	38.25	4.92
	M	22.50	11.00
	H	23.75	6.92
S. aureus	G	27.50	0.33	3.49	93.14
	F	33.00	3.33
	M	25.00	0.67
	H	20.50	0.33
C. albicans	G	22.25	1.58	3.49	7.71	0.0039
	F	23.50	5.67
	M	17.25	4.25
	H	18.75	6.25
Penicillium sp.	G	24.50	11.00	3.49	7.66	0.0040
	F	28.00	12.67
	M	18.50	13.67
	H	20.25	0.92

There is significant difference among the inhibition zone sizes caused by different extracts at significance level 5%.