Essential Oils as Biocontrol Agents of Early and Late Blight Diseases of Tomato under Greenhouse Conditions

Table 3

Number of leaves on inoculated tomato plants.

Alternaria solani	Treatment	Wk 2	Wk 4	Wk 6	Wk 8	Wk 10
	Control	9.00a	9.75ab	11.75a	11.75b	12.75c
	Marigold	8.50a	9.00b	11.50a	14.00ab	18.50a
	Garlic	9.25a	10.00ab	13.75a	14.25ab	19.50a
	Ginger	8.25a	10.25ab	13.50a	15.25a	18.50a
	Ridomil Gold®	8.50a	11.25a	14.40a	15.75a	15.00b
	Pr > F	0.112^NS	0.049	0.060^NS	0.050	<0.0001
	SE	0.431	0.459	0.771	0.704	0.447
Phytophthora infestans	Treatment	Wk 2	Wk 4	Wk 6	Wk 8	Wk 10
	Control	6.25a	8.00a	11.25c	12.00c	13.75b
	Marigold	6.25a	8.75a	19.50a	20.00a	20.50a
	Garlic	6.25a	8.00a	16.75b	17.50b	17.50ab
	Ginger	6.25a	8.00a	15.00b	16.00b	15.75b
	Ridomil Gold®	6.25a	8.75a	14.00b	15.50b	17.50ab
	Pr > F	0.943^NS	0.166^NS	0.001	<0.0001	0.013
	SE	0.258	0.320	0.840	0.592	0.928

Means followed by the same letter within the column are not significantly different at ; Wk: week; SE: standard error; DF: degrees of freedom; NS: not significant.