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

Background Information for this page
Return to radar list for Greenville RI
     Fyspeck infection risk increases with appearance of 1st generation colonies around June 15.  Continuous protection from June 15 until 30 days before harvest is recommended.
     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 Greenville RI.  Forecast values begin September 1, 2009
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.)
0.02 Sat, May 16 May 30 (June 5) x June 20 (Jun 25)
0.31 Sun, May 17 May 31 (June 8) x June 20 (Jun 26)
0.03 Mon, May 18 June 1 (June 8) x June 20 (Jun 26)
0 Tue, May 19 June 2 (June 8) x June 20 (Jun 26)
0 Wed, May 20 June 3 (June 8) x June 20 (Jun 26)
0 Thu, May 21 June 4 (June 9) x June 21 (Jun 27)
0 Fri, May 22 June 5 (June 9) x June 21 (Jun 28)
0.07 Sat, May 23 June 5 (June 9) x June 21 (Jun 28)
0.65 Sun, May 24 June 5 (June 9) x June 21 (Jun 28)
0.01 Mon, May 25 June 8 (June 11) x June 22 (Jun 28)
0 Tue, May 26 June 9 (June 11) x June 23 (Jun 29)
0.26 Wed, May 27 June 10 (June 12) x June 23 (Jun 30)
0.01 Thu, May 28 June 11 (June 13) x June 24 (Jun 30)
0.26 Fri, May 29 June 12 (June 14) x June 25 (Jul 1)
0.06 Sat, May 30 June 12 (June 14) x June 25 (Jul 1)
0.13 Sun, May 31 June 12 (June 14) x June 25 (Jul 1)
0 Mon, June 1 June 13 (June 15) x June 26 (Jul 1)
0 Tue, June 2 June 13 (June 15) x June 26 (Jul 1)
0.03 Wed, June 3 June 13 (June 15) x June 26 (Jul 1)
0.24 Thu, June 4 June 13 (June 15) x June 26 (Jul 1)
0.39 Fri, June 5 June 14 (June 18) x June 27 (Jul 2)
0.04 Sat, June 6 June 14 (June 18) x June 27 (Jul 2)
0 Sun, June 7 June 14 (June 18) x June 27 (Jul 2)
0 Mon, June 8 June 14 (June 18) x June 27 (Jul 2)
0.36 Tue, June 9 June 14 (June 18) x June 27 (Jul 2)
0.02 Wed, June 10 June 15 (June 18) x June 28 (Jul 3)
0.20 Thu, June 11 June 15 (June 18) x June 28 (Jul 3)
0.60 Fri, June 12 June 18 (June 20) x June 29 (Jul 6)
0.19 Sat, June 13 June 19 (June 21) x June 30 (Jul 8)
0.74 Sun, June 14 June 19 (June 21) x June 30 (Jul 8)
0.39 Mon, June 15 June 22 (June 23) x July 3 (Jul 20)
0 Tue, June 16 June 22 (June 23) x July 3 (Jul 20)
0 Wed, June 17 June 22 (June 23) x July 3 (Jul 20)
0.61 Thu, June 18 June 22 (June 23) x July 3 (Jul 20)
0.60 Fri, June 19 June 29 (June 30) x July 21 (Jul 29)
0 Sat, June 20 July 1 (July 2) x July 23 (Aug 1)
0.27 Sun, June 21 July 1 (July 2) x July 23 (Aug 1)
0.69 Mon, June 22 July 1 (July 2) x July 23 (Aug 1)
0.09 Tue, June 23 July 1 (July 2) x July 23 (Aug 1)
0.13 Wed, June 24 July 1 (July 2) x July 23 (Aug 1)
0 Thu, June 25 July 1 (July 2) x July 23 (Aug 1)
0.15 Fri, June 26 July 1 (July 2) x July 23 (Aug 1)
0 Sat, June 27 July 1 (July 2) x July 23 (Aug 1)
0.01 Sun, June 28 July 1 (July 2) x July 23 (Aug 1)
0.30 Mon, June 29 July 1 (July 2) x July 23 (Aug 1)
0.06 Tue, June 30 July 2 (July 6) x July 25 (Aug 4)