| 1 | He found himself picking at the scab on his left hand as he continued walking. | |
| 2 | Do stop picking at that scab or the cut will never heal. | |
| 3 | Biocontrol of potato scab by Streptomyces strains was evaluated in a 3 years field trial. | |
| 4 | The occurrence regularity of scab disease on hot pepper and its control techniques were investigated and studied in Dafang county. | |
| 5 | The result of field test showed it has good control effect against citrus scab and bacterial blight of rice. |
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