Table 1.

Minimum inhibitory concentration (MIC) of six plant species against plant pathogenic fungi (values duplicate SD = 0)

Micr1	MIC (mg/ml)
	Bucida buceras					Breonadia salicina				Harpephyllum caffrum				Olinia ventosa				Vangueria infausta				Xylotheca kraussiana					Amp
	Time2 (h)	Extractant3 A	H	D	M	A	H	D	M	A	H	D	M	A	H	D	M	A	H	D	M	A	H	D	M	Ave
A. p	24	0.63	1.25	1.25	1.25	0.63	2.5 0	0.63	1.25	1.25	2.50	1.25	0.63	1.25	1.25	0.63	1.25	1.25	2.50	0.63	0.63	0.16	0.63	0.32	0.32	1.06	0.02
A. n	48	0.63	2.50	2.50	1.25	2.50	1.2 5	1.25	2.50	1.25	2.50	1.25	0.63	1.25	2.50	1.25	2.50	1.25	2.50	2.50	2.50	0.63	2.50	1.25	1.25	1.63	0.02
C. g	48	0.63	2.50	2.50	0.63	1.25	2.5 0	1.25	1.25	1.25	0.63	1.25	2.50	1.25	2.50	1.25	2.50	1.25	2.50	2.50	2.50	1.25	2.50	0.63	0.63	1.54	<0.0 2
P. e	24	0.08	0.63	0.32	0.32	1.25	2.5 0	2.50	2.50	2.50	1.25	2.50	0.63	0.32	1.25	1.25	0.63	2.50	1.25	1.25	1.25	0.63	2.50	1.25	1.25	1.27	<0.0 2
P. j	48	0.02	0.08	0.32	0.02	0.08	0.0 8	0.08	0.08	0.04	0.32	0.16	0.08	0.08	0.32	0.16	0.32	0.63	0.63	0.63	0.32	0.32	0.63	0.63	0.63	0.28	<0.0 2
T. h	48	0.02	0.08	0.63	0.02	0.63	0.3 2	0.63	0.63	0.08	0.63	0.63	0.08	0.04	0.04	0.04	0.08	0.32	0.32	0.32	0.32	0.16	0.32	0.16	0.32	0.28	<0.0 2
F. o	24	0.02	0.63	0.32	0.04	0.32	0.0 8	0.16	0.16	0.02	0.32	0.16	0.04	0.08	0.63	0.32	0.16	0.32	0.63	0.32	0.32	0.63	0.32	0.32	0.32	0.28	<0.0 2
Ave		0.29	1.02	1.05	0.5	0.92	1.2 5	0.89	1.12	0.88	1.09	0.99	0.62	0.61	1.14	0.70	0.99	1.04	1.37	1.09	1.05	0.54	1.23	0.65	0.67	0.91

¹Microorganisms: A. p. = Aspergillus parasiticus, A. n. = Aspergillus niger, C. g. = Colletotrichum gloeosporioides, P. e. = Penicillium expansum, P. j. = Penicillium janthinellum, T. h. = Trichoderma harzianum and F. s. = Fusarium oxysporum.

²Time: MIC values after 24 h were sometimes not distinct, so the plates were left to incubate for a further 24 h before MIC was read

³Extractant: A = acetone, H = hexane, D = dichloromethane, M = methanol