Apple scab:  Primary infection period ratings

Background Information for this page
Return to radar list for Middletown RI
Weather data for Middletown RI.  Forecast values begin May 24, 2013
      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 Portion of Annual Primary Scab Infection Potential on this day
(cumulative scab infection potential in parentheses)
1 in 20 chance that daily value is more than
Wed, April 10  0.30 50% Green Tip    
Thu, April 11  0.03    
Fri, April 12  0.58    
Sat, April 13  0.01    
Sun, April 14  0    
Mon, April 15  0    
Tue, April 16  0          
Wed, April 17  0.02 Half-inch Green     < 1
Thu, April 18  0    
Fri, April 19  0.13 0 < 1  (< 1) 2%
Sat, April 20  0.48    
Sun, April 21  0    
Mon, April 22  0    
Tue, April 23  0.34   0 < 1  (1%) 2%
Wed, April 24  0 early Tight Cluster    
Thu, April 25  0.04    
Fri, April 26  0    
Sat, April 27  0    
Sun, April 28  0 Tight Cluster    
Mon, April 29  0    
Tue, April 30  0 Open Cluster        
Wed, May 1  0    
Thu, May 2  0    
Fri, May 3  0    
Sat, May 4  0    
Sun, May 5  0 full Pink-extended    
Mon, May 6  0 late Pink    
Tue, May 7  0 King Bloom        
Wed, May 8  0.21 < 1 < 1  (2%) 1%
Thu, May 9  0.43 11% 20%  (23%) 30%
Fri, May 10  0 Full Bloom    
Sat, May 11  0.77 10% 14%  (36%) 18%
Sun, May 12  0.08    
Mon, May 13  0    
Tue, May 14  0          
Wed, May 15  0.04 2% 3%  (39%) 4%
Thu, May 16  0    
Fri, May 17  0    
Sat, May 18  0 95% Petal Fall    
Sun, May 19  0.14 100% Petal Fall 12% 17%  (56%) 22%
Mon, May 20  0.10    
Tue, May 21  0.15   4% 6%  (62%) 7%
Wed, May 22  0 Fruit Set    
Thu, May 23  0.17    
Fri, May 24  1.36 20% 30%  (91%) 40%
Sat, May 25  0.28 < 1 2%  (93%) 3%
Sun, May 26  0.01    
Mon, May 27  0    
Tue, May 28  0          
Wed, May 29  0    
Thu, May 30  0    
Fri, May 31  0    
Sat, June 1  0    
Sun, June 2  0