Apple scab:  Primary infection period ratings

Background Information for this page
Return to radar list for Sanford ME
Weather data for Sanford ME.  Forecast values begin May 20, 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 17  0 50% Green Tip    
Thu, April 18  0    
Fri, April 19  0.03    
Sat, April 20  0.30    
Sun, April 21  0    
Mon, April 22  0    
Tue, April 23  0          
Wed, April 24  0.02 Half-inch Green    
Thu, April 25  0.06    
Fri, April 26  0    
Sat, April 27  0    
Sun, April 28  0    
Mon, April 29  0 early Tight Cluster    
Tue, April 30  0          
Wed, May 1  0 Tight Cluster    
Thu, May 2  0    
Fri, May 3  0 Open Cluster    
Sat, May 4  0    
Sun, May 5  0    
Mon, May 6  0    
Tue, May 7  0 full Pink-extended        
Wed, May 8  0.20 late Pink 0 < 1  (< 1) < 1
Thu, May 9  1.16 King Bloom 0 6%  (6%) 14%
Fri, May 10  0    
Sat, May 11  0.30 1% 6%  (12%) 11%
Sun, May 12  0.10 Full Bloom < 1 < 1  (13%) < 1
Mon, May 13  0    
Tue, May 14  0          
Wed, May 15  0.16 < 1 < 1  (13%) < 1
Thu, May 16  0    
Fri, May 17  0    
Sat, May 18  0    
Sun, May 19  0.10 1% 1%  (14%) 2%
Mon, May 20  0.79 95% Petal Fall 6% 7%  (21%) 8%
Tue, May 21  0.21 100% Petal Fall 24% 30%  (50%) 35%
Wed, May 22  0.27 3% 5%  (55%) 7%
Thu, May 23  0.48 7% 11%  (67%) 16%
Fri, May 24  0.28 Fruit Set 3% 6%  (73%) 10%
Sat, May 25  0    
Sun, May 26  0    
Mon, May 27  0    
Tue, May 28  0          
Wed, May 29  0