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

Table 4

Antimicrobial activity of essential oils 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	4.67^a	25.33^a	43.42^a	59.67^a	4.75^a	27.17^a	50.75^a	68.67^a
Marigold	1.84^c	7.17^c	21.59^c	31.67^c	1.83^b	8.92^b	21.33^b	28.58^b
Tick berry	2.92^b	10.25^b	23.25^b	35.25^b	1.25^c	8.83^b	22.09^b	29.00^b
Ginger	0.00^d	0.00^d	0.00^d	0.00^d	0.00^d	0.00^c	0.00^c	0.00^c
Garlic	0.00^d	0.00^d	0.00^d	0.00^d	0.00^d	0.00^c	0.00^c	0.00^c
Ridomil	0.00^d	0.00^d	0.00^d	0.00^d	0.00^d	0.00^c	0.00^c	0.00^c
Pr > F	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001
SE	0.228	0.372	0.441	0.644	0.115	0.357	0.484	0.624
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 .