In Vitro Control of Phytophthora infestans and Alternaria solani Using Crude Extracts and Essential Oils from Selected Plants

Table 3

Antimicrobial activity of ethanol-extracted plant extracts on the growth of the fungal pathogens.

Test material	Growth of fungal isolates
	Alternaria solani				Phytophthora infestans
	Day 1	Day 3	Day 5	Day 7	Day 1	Day 3	Day 5	Day 7
Control	5.17^a	24.50^a	39.67^a	61.25^a	5.25^a	26.75^a	53.42^a	69.59^a
Marigold	5.00^a	22.83^b	40.67^a	51.25^b	4.84^a	22.25^b	40.83^b	50.00^b
Tick berry	2.67^b	13.50^d	28.50^c	47.58^c	2.67^b	14.67^c	32.33^c	49.34^b
Ginger	5.50^a	19.75^c	30.75^b	40.59^d	2.42^b	11.00^d	26.42^d	42.25^c
Garlic	1.42^c	9.42^e	22.83^d	34.50^e	0.00^c	5.00^e	17.59^e	29.75^d
Ridomil	0.00^d	0.00^f	0.00^e	0.00^f	0.00^c	0.00^f	0.00^f	0.00^e
Pr > F	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
SE	0.203	0.300	0.428	0.404	0.169	0.287	0.568	0.344
DF	5	5	5	5	5	5	5	5

Mean values followed by the same letter within the same column are not significantly different at .