Strobilurin fungicide Respray Dates for Scab Suppression

Background Information for this page
Return to radar list for Hancock NH
Weather data for Hancock NH.  Forecast values begin July 3, 2011
Final primary scab infection period starts and ascospores depleted on: Wednesday,  June 1, 2PM.
Full-dose
STROBILURIN fungicide
(Flint, Sovran, Pristine)
SPRAY DATE
6am application time assumed
Inches Rain END of STROBILURIN FUNGICIDE
PROTECTION

& limiting factor
DEADLINE for next
Pre-Infection Application

This is the start time for the next infection period that has rain after fungicide depletion time.
Deadline for post-infection fungicide to reach back to start time of subsequent infection period (1 col. to left), or back to depletion time of previous fungicide spray (2 cols. to left), whichever is later.  Assumes no scab resistance.
Wed,  April 20 0.04 Apr 26,  5 PM
slow growth at 7 day limit
Sun, April 24, 8pm Fri, Apr 29, 5PM 
Thu,  April 21 0 Apr 27,  6 AM
6 days normal growth
Sun, April 24, 8pm Sat, Apr 30, 6AM 
Fri,  April 22 0 Apr 27,  7 PM
rapid growth
Tue, April 26, 10pm Sat, Apr 30, 7PM 
Sat,  April 23 0.57 Apr 27,  11 PM
rapid growth
Tue, April 26, 10pm Sat, Apr 30, 11PM 
Sun,  April 24 0.01 Apr 28,  3 AM
rapid growth
Tue, April 26, 10pm Sun, May 1, 3AM 
Mon,  April 25 0.04 Apr 28,  7 PM
rapid growth
Wed, May 4, 8am Sat, May 7, 8AM 
Tue,  April 26 0.28 Apr 29,  1 PM
rapid growth
Wed, May 4, 8am Sat, May 7, 8AM 
Wed,  April 27 0.19 Apr 30,  8 PM
rapid growth
Wed, May 4, 8am Sat, May 7, 8AM 
Thu,  April 28 0.17 May 3,  4 AM
rapid growth
Wed, May 4, 8am Sat, May 7, 8AM 
Fri,  April 29 0 May 4,  4 PM
rapid growth
Wed, May 4, 8am Sat, May 7, 4PM 
Sat,  April 30 0 May 6,  6 AM
6 days normal growth
Thu, May 5, 5pm Mon, May 9, 6AM 
Sun,  May 1 0 May 7,  6 AM
6 days normal growth
Thu, May 5, 5pm Tue, May 10, 6AM 
Mon,  May 2 0 May 8,  6 AM
6 days normal growth
Sat, May 7, 1pm Wed, May 11, 6AM 
Tue,  May 3 0 May 9,  6 AM
6 days normal growth
Sun, May 8, 3pm Thu, May 12, 6AM 
Wed,  May 4 0.52 May 10,  6 AM
6 days normal growth
Sun, May 8, 3pm Fri, May 13, 6AM 
Thu,  May 5 0.03 May 11,  6 AM
6 days normal growth
Sat, May 14, 2pm Tue, May 17, 2PM 
Fri,  May 6 0 May 12,  6 AM
6 days normal growth
Sat, May 14, 2pm Tue, May 17, 2PM 
Sat,  May 7 0.24 May 13,  6 AM
6 days normal growth
Sat, May 14, 2pm Tue, May 17, 2PM 
Sun,  May 8 0.05 May 14,  6 AM
6 days normal growth
Sat, May 14, 2pm Tue, May 17, 2PM 
Mon,  May 9 0 May 15,  6 AM
6 days normal growth
Sat, May 14, 2pm Wed, May 18, 6AM
    If application is after deadline, lesions may start showing May 30.
Tue,  May 10 0 May 16,  6 AM
6 days normal growth
Sat, May 14, 2pm Thu, May 19, 6AM
    If application is after deadline, lesions may start showing May 31.
Wed,  May 11 0.01 May 17,  3 PM
slow growth at 7 day limit
Sat, May 14, 2pm Fri, May 20, 3PM
    If application is after deadline, lesions may start showing Jun 01.
Thu,  May 12 0 May 18,  11 PM
slow growth at 7 day limit
Sat, May 14, 2pm Sat, May 21, 11PM 
Fri,  May 13 0 May 20,  1 AM
slow growth at 7 day limit
Sat, May 14, 2pm Mon, May 23, 1AM 
Sat,  May 14 0.16 May 21,  1 AM
slow growth at 7 day limit
Post-infection control needed Tue, May 24, 1AM 
Sun,  May 15 1.32 May 21,  5 PM
slow growth at 7 day limit
Post-infection control needed Tue, May 24, 5PM 
Mon,  May 16 0.28 May 22,  3 PM
slow growth at 7 day limit
Sat, May 21, 1pm Wed, May 25, 3PM 
Tue,  May 17 0.45 May 23,  4 PM
slow growth at 7 day limit
Sat, May 21, 1pm Thu, May 26, 4PM 
Wed,  May 18 0.36 May 24,  6 AM
6 days normal growth
Mon, May 23, 2am Fri, May 27, 6AM 
Thu,  May 19 0.48 May 25,  6 AM
6 days normal growth
Sat, May 28, 3pm Tue, May 31, 3PM 
Fri,  May 20 0.05 May 26,  6 AM
6 days normal growth
Sat, May 28, 3pm Tue, May 31, 3PM 
Sat,  May 21 0.23 May 27,  6 AM
6 days normal growth
Sat, May 28, 3pm Tue, May 31, 3PM 
Sun,  May 22 0 May 27,  8 PM
rapid growth
Sat, May 28, 3pm Tue, May 31, 3PM 
Mon,  May 23 0.24 May 28,  8 AM
rapid growth
Sat, May 28, 3pm Tue, May 31, 3PM 
Tue,  May 24 0.35 May 28,  11 PM
rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 1, 2PM
 
Wed,  May 25 0 May 29,  6 PM
rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 1, 2PM
Thu,  May 26 0 May 30,  12 PM
rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 1, 2PM
Fri,  May 27 0 May 31,  1 PM
rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 1, 2PM
Sat,  May 28 0.05 Jun 1,  3 PM
rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 5, 8PM
Sun,  May 29 0 Jun 2,  7 PM
rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 5, 8PM
Mon,  May 30 0 Jun 5,  6 AM
6 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 5, 8PM
Tue,  May 31 0 Jun 6,  6 AM
6 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 8, 8PM
 
Wed,  June 1 0.36 Jun 7,  6 AM
6 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
  June 8, 8PM