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

Table 1

Influence of the test pathogen on disease severity.

Pathogen	Disease severity
	Wk 2	Wk 4	Wk 6	Wk 8	Wk 10
Alternaria solani	9.77^a	10.80^b	10.56^b	10.59^b	10.48^b
Phytophthora infestans	9.93^a	16.36^a	19.32^a	20.82^a	23.76^a
Pr > F	0.308^NS	<0.0001	<0.0001	<0.0001	<0.0001
SE	0.109	0.277	0.458	0.279	0.352

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