Apple scab:  Primary infection period ratings

Background Information for this page
Return to radar list for Greenville RI
Weather data for Greenville RI.  Forecast values begin May 22, 2012
      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 daily value is equal or less than Estimated Portion
of Total Annual

Primary Scab Infection Potential on this day
(cumulative scab infection potential in parentheses)
1 in 20 chance that daily value is more than
Tue, March 20  0 50% Green Tip    
Wed, March 21  0    
Thu, March 22  0    
Fri, March 23  0    
Sat, March 24  0 Half-inch Green    
Sun, March 25  0    
Mon, March 26  0          
Tue, March 27  0    
Wed, March 28  0.19 0 < 1  (< 1) 2%
Thu, March 29  0    
Fri, March 30  0    
Sat, March 31  0.20    
Sun, April 1  0.14    
Mon, April 2  0.04          
Tue, April 3  0    
Wed, April 4  0    
Thu, April 5  0    
Fri, April 6  0 early Tight Cluster    
Sat, April 7  0    
Sun, April 8  0    
Mon, April 9  0          
Tue, April 10  0 Tight Cluster    
Wed, April 11  0    
Thu, April 12  0.12 < 1 2% (2%) 3%
Fri, April 13  0 Open Cluster    
Sat, April 14  0    
Sun, April 15  0.01    
Mon, April 16  0 late Pink        
Tue, April 17  0 King Bloom    
Wed, April 18  0    
Thu, April 19  0    
Fri, April 20  0 Full Bloom    
Sat, April 21  0.01    
Sun, April 22  1.14 45% 63% (66%) 81%
Mon, April 23  1.66   7% 8% (74%) 10%
Tue, April 24  0    
Wed, April 25  0    
Thu, April 26  0 95% Petal Fall    
Fri, April 27  0.01 100% Petal Fall    
Sat, April 28  0    
Sun, April 29  0    
Mon, April 30  0          
Tue, May 1  0.65 8% 15% (89%) 22%
Wed, May 2  0    
Thu, May 3  0.22 < 1 < 1 (90%) < 1
Fri, May 4  0.03 0 < 1 (90%) < 1
Sat, May 5  0.06 Fruit Set    
Sun, May 6  0    
Mon, May 7  0          
Tue, May 8  0.20 0 < 1 (91%) 2%
Wed, May 9  1.06 0 7% (98%) 16%
Thu, May 10  0.75     < 1
Fri, May 11  0    
Sat, May 12  0    
Sun, May 13  0    
Mon, May 14  0          
Tue, May 15  0.57 0 2% (100%) 5%
Wed, May 16    0 < 1 (100%) < 1
Thu, May 17       
Fri, May 18       
Sat, May 19       
Sun, May 20       
Mon, May 21             
Tue, May 22        < 1
Wed, May 23       
Thu, May 24       
Fri, May 25       
Sat, May 26    Last formula in cell above.  Rows above may appear blank due to conditional formatting.    
Sun, May 27    0    
Mon, May 28    0