Treatment*

Average number of infected plants with

S rolfsii, 28 days after planting**

T1―Seeds not treated and the soil not infested with S. rolfsii

0.00 c

T2―Seeds not treated and the soil infested with S. rolfsii, before planting

50.95 a

T3―Seeds treated with shale water (5%) and the soil infested with S. rolfsii, before planting

7.81 b