'Surface fungicide' Respray Dates for Scab Suppression

Background Information for this page
Return to radar list for Sanford ME
Weather data for Sanford ME.  Forecast values begin October 17, 2008
Final primary scab infection period starts: Wednesday,  June 04
Full dose SURFACE fungicide
(captan, mancozeb, Polyram, Syllit)
SPRAY DATE
(application time assumed
as 6 AM)
Inches Rain
on this date
SURFACE fungicide
DEPLETION TIME
(limiting factor shown underneath)
DEADLINE for next
PRE-INFECTION APPLICATION
This is the start time for the next infection period that has rain after fungicide depletion time.
    Last rain hour for the infection period that started at time shown 1 column to left.  However, rain interruption may allow spray application before this time, or wind may prevent spraying until after this time. 72 hour deadline for post-infection fungicide to reach back to start time of subsequent infection period (2 cols. to left), or back to end of protection from previous fungicide spray (3 cols. to left), whichever is later.  Assumes no scab resistance.
Sat,  April 19 0 Apr 23,  8 PM
rapid growth
Sun, Apr 27, 8 AM April 29, 10 PM Wed, Apr 30, 8 AM 
Sun,  April 20 0 Apr 24,  1 PM
rapid growth
Sun, Apr 27, 8 AM April 29, 10 PM Wed, Apr 30, 8 AM 
Mon,  April 21 0 Apr 25,  9 AM
rapid growth
Sun, Apr 27, 8 AM April 29, 10 PM Wed, Apr 30, 8 AM 
Tue,  April 22 0 Apr 27,  2 PM
rapid growth
Sun, Apr 27, 8 AM April 29, 10 PM     Interval between depletion time for captan, EBDC, or Syllit applied April 22, 6 AM, and last rain hour is greater than kickback range for follow-up application of captan, EBDC, or Syllit; but still within kickback range of SI or strobilurin fungicide. Wed, Apr 30, 2 PM 
Wed,  April 23 0 Apr 29,  6 AM
rain removal
Sun, Apr 27, 8 AM April 29, 10 PM Fri, May 2, 6 AM 
Thu,  April 24 0 Apr 29,  4 AM
Sun, Apr 27, 8 AM April 29, 10 PM Fri, May 2, 4 AM 
Fri,  April 25 0 Apr 29,  4 AM
rain removal
Sun, Apr 27, 8 AM April 29, 10 PM Fri, May 2, 4 AM 
Sat,  April 26 0 Apr 29,  4 AM
rain removal
Sun, Apr 27, 8 AM April 29, 10 PM Fri, May 2, 4 AM 
Sun,  April 27 0.10 Apr 29,  4 AM
rain removal
Post-infection control needed   Fri, May 2, 4 AM 
Mon,  April 28 1.36 Apr 29,  4 AM
rain removal
Post-infection control needed April 29, 10 PM Fri, May 2, 4 AM 
Tue,  April 29 1.58 May 8,  6 AM
slow growth at 9 day limit
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Wed,  April 30 0 May 8,  6 PM
slow growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Thu,  May 1 0 May 8,  9 PM
slow growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Fri,  May 2 0 May 9,  12 PM
slow growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Sat,  May 3 0.22 May 10,  6 AM
7 days normal growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Sun,  May 4 0.59 May 11,  6 AM
7 days normal growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Mon,  May 5 0 May 12,  6 AM
7 days normal growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Tue,  May 6 0 May 13,  6 AM
7 days normal growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Wed,  May 7 0 May 14,  6 AM
7 days normal growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Thu,  May 8 0.03 May 15,  12 PM
slow growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Fri,  May 9 0 May 16,  8 PM
slow growth
Fri, May 16, 8 PM May 17, 9 AM Mon, May 19, 8 PM 
Sat,  May 10 0 May 17,  2 PM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Sun,  May 11 0 May 18,  10 AM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Mon,  May 12 0 May 19,  6 AM
7 days normal growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Tue,  May 13 0 May 20,  9 AM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Wed,  May 14 0 May 21,  1 PM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Thu,  May 15 0 May 23,  12 AM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Fri,  May 16 0.04 May 24,  9 AM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Sat,  May 17 0.12 May 25,  12 PM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Sun,  May 18 0 May 26,  9 AM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Mon,  May 19 0 May 26,  8 PM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Tue,  May 20 0 May 27,  7 AM
slow growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Wed,  May 21 0 May 28,  6 AM
7 days normal growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Thu,  May 22 0 May 29,  6 AM
7 days normal growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Fri,  May 23 0.02 May 30,  6 AM
7 days normal growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 5 AM 
Sat,  May 24 0 May 31,  6 AM
7 days normal growth
Sat, May 31, 5 AM May 31, 7 PM Tue, Jun 3, 6 AM 
Sun,  May 25 0 Jun 1,  6 AM
7 days normal growth
Tue, Jun 3, 11 PM June 6, 7 PM Fri, Jun 6, 11 PM 
Mon,  May 26 0 Jun 2,  6 AM
7 days normal growth
Tue, Jun 3, 11 PM June 6, 7 PM Fri, Jun 6, 11 PM 
Tue,  May 27 0 Jun 3,  6 AM
7 days normal growth
Tue, Jun 3, 11 PM June 6, 7 PM Fri, Jun 6, 11 PM 
Wed,  May 28 0 Jun 4,  6 AM
7 days normal growth
Tue, Jun 3, 11 PM June 6, 7 PM     Interval between depletion time for captan, EBDC, or Syllit applied May 28, 6 AM, and last rain hour is greater than kickback range for follow-up application of captan, EBDC, or Syllit; but still within kickback range of SI or strobilurin fungicide. Sat, Jun 7, 6 AM 
Thu,  May 29 0 Jun 5,  6 AM
7 days normal growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 10, 8 PM
   
Fri,  May 30 0 Jun 6,  6 AM
7 days normal growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 10, 8 PM
   
Sat,  May 31 0.45 Jun 7,  6 AM
7 days normal growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 10, 8 PM
   
Sun,  June 1 0 Jun 8,  6 AM
7 days normal growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 10, 8 PM
   
Mon,  June 2 0 Jun 9,  6 AM
7 days normal growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 10, 8 PM
   
Tue,  June 3 0.04 Jun 10,  6 AM
7 days normal growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 10, 8 PM
   
Wed,  June 4 0.31 Jun 11,  3 AM
rapid growth
Ascospores depleted.
If lesions present, next infection period to spread secondary scab starts:
  June 14, 8 PM