Sulfur fungicide Respray Dates for Scab Suppression

Background Information for this page
Return to Apple list for Belchertown MA
Weather data for Belchertown MA.  Forecast values begin July 3, 2014
Full-dose SULFUR fungicide
SPRAY DATE

(not dust)
6am application time assumed
Inches Rain
(0.5" esimated to remove sulfur coverage)
END of SULFUR FUNGICIDE
PROTECTION

& limiting factor
DEADLINE for next
Pre-Infection Application

= start time for the next infection period
that has rain after fungicide depletion time.
Sat,  April 19 0 Tue, April 22,  6PM
rapid growth
Tue, April 22, 8pm
Sun,  April 20 0 Wed, April 23,  4PM
rapid growth
Sat, April 26, 1am
Mon,  April 21 0 Thu, April 24,  6PM
rapid growth
Sat, April 26, 1am
Tue,  April 22 0.03 Sat, April 26,  5AM
rain removal
Sat, April 26, 1am
Wed,  April 23 0.22 Sat, April 26,  6AM
rain removal
Sat, April 26, 1am
Thu,  April 24 0 Sat, April 26,  9AM
rain removal
Sat, April 26, 1am
Fri,  April 25 0 Sat, April 26,  9AM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Sat,  April 26 0.94 Sat, April 26,  8PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Sun,  April 27 0.09 Wed, April 30,  2PM
rain removal
Tue, April 29, 11pm
Mon,  April 28 0 Wed, April 30,  2PM
rain removal
Tue, April 29, 11pm
Tue,  April 29 0.03 Wed, April 30,  2PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Wed,  April 30 1.3 Wed, April 30,  4PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Thu,  May 1 1.12 Mon, May 5,  5PM
rapid growth
Fri, May 9, 2am
Fri,  May 2 0 Tue, May 6,  10PM
rapid growth
Fri, May 9, 2am
Sat,  May 3 0 Thu, May 8,  6AM
5 days normal growth
Fri, May 9, 2am
Sun,  May 4 0 Fri, May 9,  6AM
5 days normal growth
Fri, May 9, 2am
Mon,  May 5 0 Sat, May 10,  6AM
5 days normal growth
Fri, May 9, 2am
Tue,  May 6 0 Sat, May 10,  5PM
rapid growth
Fri, May 9, 2am
Wed,  May 7 0 Sat, May 10,  6PM
rain removal
Fri, May 9, 2am
Thu,  May 8 0 Sat, May 10,  6PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Fri,  May 9 0.11 Sat, May 10,  6PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Sat,  May 10 0.55 Sat, May 10,  7PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Sun,  May 11 0 Wed, May 14,  7PM
rapid growth
Thu, May 15, 8am
Mon,  May 12 0 Thu, May 15,  8PM
rapid growth
Thu, May 15, 8am
Tue,  May 13 0 Sat, May 17,  12AM
rain removal
Thu, May 15, 8am
Wed,  May 14 0 Sat, May 17,  12AM
rain removal
Thu, May 15, 8am
Thu,  May 15 0.12 Sat, May 17,  12AM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Fri,  May 16 0.28 Sat, May 17,  1AM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Sat,  May 17 1.6 Thu, May 22,  4AM
rapid growth
Thu, May 22, 10am
Sun,  May 18 0 Thu, May 22,  7PM
rain removal
Thu, May 22, 10am
Mon,  May 19 0 Thu, May 22,  7PM
rain removal
Thu, May 22, 10am
Tue,  May 20 0 Thu, May 22,  7PM
rain removal
Thu, May 22, 10am
Wed,  May 21 0 Thu, May 22,  7PM
rain removal
Thu, May 22, 10am
Thu,  May 22 0.52 Thu, May 22,  7PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Fri,  May 23 0.63 Fri, May 23,  9PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Sat,  May 24 0 Wed, May 28,  1AM
rain removal
Mon, May 26, 5am
Sun,  May 25 0.01 Wed, May 28,  1AM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Mon,  May 26 0.01 Wed, May 28,  2AM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Tue,  May 27 0.42 Wed, May 28,  2AM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Wed,  May 28 0.12 Mon, June 2,  8AM
slow growth
Tue, June 3, 8pm
Thu,  May 29 0.01 Tue, June 3,  6AM
5 days normal growth
Tue, June 3, 8pm
Fri,  May 30 0.14 Wed, June 4,  6AM
5 days normal growth
Tue, June 3, 8pm
Sat,  May 31 0.01 Thu, June 5,  6AM
5 days normal growth
Tue, June 3, 8pm
Sun,  June 1 0 Thu, June 5,  12PM
rain removal
Tue, June 3, 8pm
Mon,  June 2 0.01 Thu, June 5,  12PM
rain removal
Tue, June 3, 8pm
Tue,  June 3 0.11 Thu, June 5,  12PM
rain removal
Sulfur depleted by rain, renew protection as soon as possible
Wed,  June 4 0.04 Mon, June 9,  4AM
rapid growth

Ascospores depleted before end of protection.  If lesions present, next infection period to spread secondary scab starts: 
June 09, 5PM
Thu,  June 5 0.42 Tue, June 10,  4AM
rapid growth

Ascospores depleted before end of protection.  If lesions present, next infection period to spread secondary scab starts: 
June 10, 9PM