Apple scab:  Primary infection period ratings

Return to radar list for Greenville RI
Weather data for Greenville RI.  Forecast values begin September 20, 2011
      These ratings are relative because they do not account for scab spore population density, which is the MOST important factor determining absolute infection risk.  Estimates also do not account for any secondary scab spores that might be present from earlier uncontrolled primary scab infection periods.  
Date Observed & Forecast
Inches Rain
McIntosh
bud stage
1 in 20 chance that actual value is equal or less than Estimated Portion
of Total Annual

Primary Scab Infection Potential
1 in 20 chance that actual value is more than
Fri, April 8  0 50% Green Tip  
Sat, April 9  0  
Sun, April 10  0  
Mon, April 11  0  
Tue, April 12  0.37 0 < 1 < 1
Wed, April 13  1.38 0 < 1 < 1
Thu, April 14  0        
Fri, April 15  0  
Sat, April 16  0.45  
Sun, April 17  1.47 Half-inch Green   < 1
Mon, April 18  0  
Tue, April 19  0.11   < 1
Wed, April 20  0.01  
Thu, April 21  0        
Fri, April 22  0  
Sat, April 23  0.61 0 3% 7%
Sun, April 24  0.05 early Tight Cluster   < 1
Mon, April 25  0  
Tue, April 26  0 Tight Cluster  
Wed, April 27  0.09 Open Cluster  
Thu, April 28  0.51   6% 13% 21%
Fri, April 29  0.03 full Pink-extended  
Sat, April 30  0  
Sun, May 1  0 late Pink  
Mon, May 2  0 King Bloom  
Tue, May 3  0  
Wed, May 4  0.36 12% 22% 31%
Thu, May 5  0.02        
Fri, May 6  0 Full Bloom  
Sat, May 7  0.27 12% 18% 24%
Sun, May 8  0  
Mon, May 9  0  
Tue, May 10  0.06 2% 2% 3%
Wed, May 11  0.02  
Thu, May 12  0        
Fri, May 13  0 95% Petal Fall  
Sat, May 14  0.02 100% Petal Fall 1% 1% 2%
Sun, May 15  0.78 19% 27% 35%
Mon, May 16  0.30 2% 4% 6%
Tue, May 17  1.02 < 1 2% 3%
Wed, May 18  0.44  
Thu, May 19  0.96   0 3% 6%
Fri, May 20  0.19 Fruit Set 0 < 1 2%
Sat, May 21  0  
Sun, May 22  0  
Mon, May 23  0.29 0 1% 3%
Tue, May 24  0.36  
Wed, May 25  0  
Thu, May 26  0        
Fri, May 27  0  
Sat, May 28  0  
Sun, May 29  0  
Mon, May 30  0  
Tue, May 31  0  
Wed, June 1  0.64 0 2% 6%
Thu, June 2           
Fri, June 3     
Sat, June 4     
Sun, June 5     
Mon, June 6     
Tue, June 7     
Wed, June 8     
Thu, June 9      0 < 1 < 1
Fri, June 10     
Sat, June 11     
Sun, June 12     
Mon, June 13     
Tue, June 14    Last formula in cell above.  Rows above may appear blank due to conditional formatting.  
Wed, June 15    0  
Thu, June 16    0