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

Table 5

Effects of essential oils on height of inoculated tomato plants.

Alternaria solani	Treatment	Wk 2	Wk 4	Wk 6	Wk 8	Wk 10
	Control	34.460^a	46.020^a	51.348^a	52.228^b	55.770^c
	Marigold	30.960^a	46.020^a	58.323^a	63.840^a	70.098^a
	Garlic	33.153^a	47.165^a	55.908^a	61.040^a	64.100^b
	Ginger	34.128^a	47.375^a	57.245^a	60.960^a	62.640^b
	Ridomil Gold®	33.310^a	47.748^a	57.485^a	60.615^a	61.113^b
	Pr > F	0.293^NS	0.520^NS	0.099^NS	0.027	0.003
	SE	1.147	1.208	1.572	1.823	1.585
Phytophthora infestans	Treatment	Wk 2	Wk 4	Wk 6	Wk 8	Wk 10
	Control	33.153^a	36.473^b	40.455^c	43.810^c	46.363^c
	Marigold	36.408^a	48.038^a	63.948^a	71.733^a	78.208^a
	Garlic	37.653^a	47.435^a	56.928^ab	62.100^b	68.365^b
	Ginger	39.093^a	49.055^a	59.463^ab	64.360^b	66.953^b
	Ridomil Gold®	35.980^a	47.748^a	53.873^b	58.955^b	64.253^b
	Pr > F	0.146^NS	0.004	0.000	<0.0001	<0.0001
	SE	1.452	1.750	2.101	1.763	1.283

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.