'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 September 20, 2011
Final primary scab infection period starts and ascospores depleted on: Thursday,  June 9, 2PM.
Full-dose SURFACE "Contact" fungicide
(captan, mancozeb, Polyram, Syllit)
SPRAY DATE
6am application time assumed
Inches Rain END of SURFACE 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.
Thu,  April 21 0 April 28,  6AM
 7 days normal growth
Mon, April 25, 5pm Sun, May 1, 6AM 
Fri,  April 22 0 April 28,  12PM
 rapid growth
Mon, April 25, 5pm Sun, May 1, 12PM 
Sat,  April 23 0.55 April 28,  5PM
 rapid growth
Mon, April 25, 5pm Sun, May 1, 5PM 
Sun,  April 24 0 April 28,  9PM
 rapid growth
Wed, May 4, 7am Sat, May 7, 7AM 
Mon,  April 25 0.02 April 29,  4PM
 rapid growth
Wed, May 4, 7am Sat, May 7, 7AM 
Tue,  April 26 0.27 April 30,  12PM
 rapid growth
Wed, May 4, 7am Sat, May 7, 7AM 
Wed,  April 27 0.05 May 1,  3PM
 rapid growth
Wed, May 4, 7am Sat, May 7, 7AM 
Thu,  April 28 0.11 May 3,  2PM
 rapid growth
Wed, May 4, 7am Sat, May 7, 7AM 
Fri,  April 29 0 May 6,  6AM
 7 days normal growth
Sat, May 7, 1pm Tue, May 10, 1PM 
Sat,  April 30 0 May 7,  6AM
 7 days normal growth
Sat, May 7, 1pm Tue, May 10, 1PM 
Sun,  May 1 0 May 8,  6AM
 7 days normal growth
Sat, May 7, 1pm Wed, May 11, 6AM 
Mon,  May 2 0 May 9,  6AM
 7 days normal growth
Sun, May 8, 2pm Thu, May 12, 6AM 
Tue,  May 3 0 May 10,  6AM
 7 days normal growth
Sun, May 8, 2pm Fri, May 13, 6AM 
Wed,  May 4 0.53 May 11,  6AM
 7 days normal growth
Sun, May 8, 2pm Sat, May 14, 6AM 
Thu,  May 5 0.12 May 12,  6AM
 7 days normal growth
Sat, May 14, 8pm Tue, May 17, 8PM 
Fri,  May 6 0 May 13,  6AM
 7 days normal growth
Sat, May 14, 8pm Tue, May 17, 8PM 
Sat,  May 7 0.37 May 14,  6AM
 7 days normal growth
Sat, May 14, 8pm Tue, May 17, 8PM 
Sun,  May 8 0.12 May 15,  6AM
 7 days normal growth
Sat, May 14, 8pm Wed, May 18, 6AM
    If application is after deadline, lesions may start showing May 28.
Mon,  May 9 0 May 15,  6PM
 rain removal
Sat, May 14, 8pm Wed, May 18, 6PM
    If application is after deadline, lesions may start showing May 29.
Tue,  May 10 0.03 May 16,  6AM
 rain removal
Sat, May 14, 8pm Thu, May 19, 6AM
    If application is after deadline, lesions may start showing May 29.
Wed,  May 11 0.03 May 16,  6AM
 rain removal
Sat, May 14, 8pm Thu, May 19, 6AM
    If application is after deadline, lesions may start showing May 29.
Thu,  May 12 0 May 16,  6AM
 rain removal
Sat, May 14, 8pm Thu, May 19, 6AM
    If application is after deadline, lesions may start showing May 29.
Fri,  May 13 0 May 16,  6AM
 rain removal
Sat, May 14, 8pm Thu, May 19, 6AM
    If application is after deadline, lesions may start showing May 29.
Sat,  May 14 0.12 May 17,  12PM
 rain removal
Post-infection control needed Fri, May 20, 12PM 
Sun,  May 15 1.42 May 18,  1AM
 rain removal
Post-infection control needed Sat, May 21, 1AM 
Mon,  May 16 0.35 May 21,  4PM
 
Post-infection control needed Tue, May 24, 4PM 
Tue,  May 17 0.39 May 21,  4PM
 rain removal
Post-infection control needed Tue, May 24, 4PM 
Wed,  May 18 0.46 May 24,  6PM
 rain removal
Mon, May 23, 2am Fri, May 27, 6PM 
Thu,  May 19 0.76 May 26,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Fri,  May 20 0.08 May 27,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Sat,  May 21 0.39 May 28,  1AM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Sun,  May 22 0 May 29,  3AM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Mon,  May 23 0.37 May 29,  12PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Tue,  May 24 0.43 May 29,  9PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Wed,  May 25 0.04 May 30,  4PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
 
Thu,  May 26 0 May 31,  2PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Wed, June 1, 8AM
Fri,  May 27 0 June 1,  1PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
Sat,  May 28 0 June 2,  5PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
Sun,  May 29 0 June 4,  12PM
 rapid growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
Mon,  May 30 0 June 6,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
Tue,  May 31 0 June 7,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
Wed,  June 1 0.07 June 8,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
 
Thu,  June 2 0 June 9,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Thu, June 9, 2PM
Fri,  June 3 0 June 10,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Sat, June 11, 8AM
Sat,  June 4 0 June 11,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Sat, June 11, 8AM
Sun,  June 5 0 June 12,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Tue, June 14, 2AM
Mon,  June 6 0 June 13,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Tue, June 14, 2AM
Tue,  June 7 0 June 14,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Tue, June 14, 5PM
Wed,  June 8 0 June 15,  6AM
 7 days normal growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Fri, June 17, 2PM
 
Thu,  June 9 0.51 June 16,  12PM
 slow growth

Ascospores depleted.
If lesions present, next infection period to spread conidial scab starts:
Fri, June 17, 2PM