Treatment Intercept Disease progressive Rate (r) R2 SEE Significance (P<0.05) Victory 72WP   0.50 0.25 0.383 0.0001 Ridomil-gold   0.63 0.40 0.234 0.0001 Untreated control   0.79 0.62 0.456 0.0001 SSE=Standard Error Estimate

Table 3: Disease progressive rate (r) of potato late blight severity on three different treatments from August to November at Guder during 2012 main growing season.