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

Table 2

Antimicrobial activity of methanol-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	5.00^a	27.25^a	47.75^a	64.92^a	5.33^a	31.58^a	62.08^a	76.75^a
Marigold	3.67^b	20.17^b	36.42^b	52.50^b	3.83^c	20.25^c	38.67^b	54.25^b
Tick berry	3.08^b	19.00^c	36.09^b	50.25^c	4.75^b	26.09^b	37.25^c	50.33^c
Ginger	1.92^c	12.42^e	30.00^c	42.67^d	2.50^d	18.09^d	36.42^c	47.83^d
Garlic	2.17^c	15.83^d	28.00^d	39.75^e	1.50^e	13.09^e	24.67^d	35.08^e
Ridomil	0.00^d	0.00^f	0.00^e	0.00^f	0.00^f	0.00^f	0.00^e	0.00^f
Pr > F	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
SE	0.262	0.297	0.575	0.286	0.192	0.618	0.449	0.270
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 .