Flyspeck prevention, Full-dose Captan or Ziram: 1st cover through June

Background Information for this page
Return to radar list for Middletown RI
     Fyspeck infection risk increases with appearance of 1st generation colonies around June 4.  Continuous protection from June 4 until 30 days before harvest is recommended.  Risk of new flyspeck infections increases around June 21. 
     Postinfection control of flyspeck may occur with application of a strobilurin or Topsin M fungicide within 50 wet hours after the 'Protection end date' of the previous fungicide application.
Weather data for Middletown RI.  Forecast values begin September 1, 2010
Inches Rain Spray Date
- assumes that fungicide was applied before any rain fell on spray date
Protection End Date
for full-dose
Captan or Ziram
(deadline for postinfection strobilurin or Topsin M)
Date flyspeck infections that started after end of protection could appear
(Left side = rough estimate of flyspeck show date for dense canopy trees if weather beyond forecast range is in top 20% of years for both temperature and wet hours.
x = show date is within forecast range.

Right side = rough estimate of flyspeck show date for small, open canopy, low-risk trees.)
0 Sun, May 9 May 19 (May 24) x June 8 (Jun 16)
0 Mon, May 10 May 19 (May 24) x June 8 (Jun 16)
0 Tue, May 11 May 19 (May 24) x June 8 (Jun 16)
0 Wed, May 12 May 19 (May 24) x June 8 (Jun 16)
0 Thu, May 13 May 19 (May 24) x June 8 (Jun 16)
0.17 Fri, May 14 May 19 (May 24) x June 8 (Jun 16)
0.10 Sat, May 15 May 26 (May 31) x June 11 (Jun 22)
0 Sun, May 16 May 27 (June 1) x June 12 (Jun 23)
0 Mon, May 17 May 27 (June 1) x June 12 (Jun 23)
1.00 Tue, May 18 May 27 (June 1) x June 12 (Jun 23)
0.39 Wed, May 19 June 2 (June 3) x June 17 (Jun 28)
0 Thu, May 20 June 3 (June 5) x June 19 (Jul 7)
0 Fri, May 21 June 4 (June 6) x June 20 (Jul 8)
0 Sat, May 22 June 5 (June 8) x June 23 (Jul 9)
0 Sun, May 23 June 5 (June 8) x June 23 (Jul 9)
0 Mon, May 24 June 5 (June 8) x June 23 (Jul 9)
0 Tue, May 25 June 5 (June 8) x June 23 (Jul 9)
0.05 Wed, May 26 June 5 (June 8) x June 23 (Jul 9)
0.21 Thu, May 27 June 5 (June 8) x June 23 (Jul 9)
0 Fri, May 28 June 5 (June 8) x June 23 (Jul 9)
0.17 Sat, May 29 June 5 (June 8) x June 23 (Jul 9)
0 Sun, May 30 June 8 (June 10) x June 26 (Jul 11)
0 Mon, May 31 June 8 (June 10) x June 26 (Jul 11)
0.29 Tue, June 1 June 8 (June 10) x June 26 (Jul 11)
0 Wed, June 2 June 9 (June 11) x June 27 (Jul 12)
0.16 Thu, June 3 June 9 (June 11) x June 27 (Jul 12)
0 Fri, June 4 June 10 (June 12) x July 2 (Jul 13)
0.97 Sat, June 5 June 10 (June 12) x July 2 (Jul 13)
0.06 Sun, June 6 June 13 (June 16) x July 9 (Jul 16)
0 Mon, June 7 June 13 (June 16) x July 9 (Jul 16)
0.07 Tue, June 8 June 13 (June 16) x July 9 (Jul 16)
0.30 Wed, June 9 June 13 (June 16) x July 9 (Jul 16)
0.21 Thu, June 10 June 16 (June 19) x July 11 (Jul 20)
0 Fri, June 11 June 23 (June 27) x July 16 (Jul 28)
0.51 Sat, June 12 June 23 (June 27) x July 16 (Jul 28)
0.71 Sun, June 13 June 27 (July 7) x July 19 (Aug 4)
0 Mon, June 14 June 28 (July 8) x July 21 (Aug 5)
0.01 Tue, June 15 June 29 (July 8) x July 21 (Aug 7)
0.09 Wed, June 16 June 30 (July 8) x July 21 (Aug 7)
0.09 Thu, June 17 July 1 (July 8) x July 21 (Aug 7)
0 Fri, June 18 July 2 (July 8) x July 21 (Aug 7)
0 Sat, June 19 July 3 (July 9) x July 21 (Aug 7)
0 Sun, June 20 July 4 (July 9) x July 21 (Aug 7)
0 Mon, June 21 July 5 (July 9) x July 21 (Aug 7)
0.03 Tue, June 22 July 6 (July 9) x July 21 (Aug 7)
0.29 Wed, June 23 July 7 (July 9) x July 22 (Aug 8)
0 Thu, June 24 July 8 (July 10) x July 24 (Aug 9)
0 Fri, June 25 July 9 (July 11) x July 27 (Aug 14)
0 Sat, June 26 July 10 (July 13) x July 31 (Aug 15)
0.03 Sun, June 27 July 11 (July 13) x August 1 (Aug 16)
0.27 Mon, June 28 July 12 (July 14) x August 4 (Aug 21)
0 Tue, June 29 July 13 (July 15) x August 5 (Aug 21)
0 Wed, June 30 July 14 (July 16) x August 8 (Aug 22)