Flyspeck prevention, Low dose captan or ziram: 1st cover through June

Background Information for this page
Return to radar list for Greenville RI
     2nd generation flyspeck spores from border row hosts become available around June 15.  Beyond that date preventive or postinfection flyspeck control is advised up until 30 days before the end of harvest.
     Postinfection control of flyspeck requires application of a strobilurin or Topsin M fungicide within 50 wet hours after the 'Protection end date' of the previous fungicide application.  For flyspeck infections starting on unprotected apples on June 15, the estimated end of the 50 wet hour postinfection control window is June 19.
Weather data for Greenville RI.  Forecast values begin August 13, 2009
Inches Rain Spray Date
- assumes that fungicide was applied before any rain recorded on spray date
Protection End Date
for low-dose Captan or Ziram
applied on spray date
Deadline for
postinfection strobilurin or
Topsin M application
(= 50 wet hours after protection ends)
Latest Safe Storage
(& Fresh pick)
Harvest Dates with low Flyspeck risk
- Storage date assumes fruit will be cool and dry within 50 hours after harvest
0.02 Sat, May 16 May 26 May 29 June 15  (Jun 18)
0.31 Sun, May 17 May 27 May 30 June 17  (Jun 19)
0.03 Mon, May 18 May 28 June 3 June 18  (Jun 19)
0 Tue, May 19 May 29 June 4 June 18  (Jun 20)
0 Wed, May 20 May 30 June 6 June 19  (Jun 21)
0 Thu, May 21 May 31 June 8 June 19  (Jun 21)
0 Fri, May 22 June 1 June 8 June 19  (Jun 21)
0.07 Sat, May 23 June 2 June 8 June 19  (Jun 21)
0.65 Sun, May 24 June 3 June 8 June 19  (Jun 21)
0.01 Mon, May 25 June 4 June 9 June 20  (Jun 21)
0 Tue, May 26 June 5 June 9 June 20  (Jun 22)
0.26 Wed, May 27 June 6 June 10 June 21  (Jun 22)
0.01 Thu, May 28 June 7 June 11 June 21  (Jun 23)
0.26 Fri, May 29 June 8 June 11 June 21  (Jun 23)
0.06 Sat, May 30 June 9 June 11 June 21  (Jun 23)
0.13 Sun, May 31 June 10 June 12 June 22  (Jun 24)
0 Mon, June 1 June 11 June 13 June 23  (Jun 25)
0 Tue, June 2 June 11 June 13 June 23  (Jun 25)
0.03 Wed, June 3 June 11 June 13 June 23  (Jun 25)
0.24 Thu, June 4 June 11 June 13 June 23  (Jun 25)
0.39 Fri, June 5 June 11 June 13 June 23  (Jun 25)
0.04 Sat, June 6 June 13 June 16 June 25  (Jun 27)
0 Sun, June 7 June 13 June 16 June 25  (Jun 27)
0 Mon, June 8 June 13 June 16 June 25  (Jun 27)
0.36 Tue, June 9 June 13 June 16 June 25  (Jun 27)
0.02 Wed, June 10 June 13 June 16 June 25  (Jun 27)
0.20 Thu, June 11 June 13 June 16 June 25  (Jun 27)
0.60 Fri, June 12 June 13 June 16 June 25  (Jun 27)
0.19 Sat, June 13 June 17 June 19 June 27  (Jun 29)
0.74 Sun, June 14 June 17 June 19 June 27  (Jun 29)
0.39 Mon, June 15 June 18 June 20 June 28  (Jun 30)
0 Tue, June 16 June 21 June 22 July 1  (Jul 2)
0 Wed, June 17 June 21 June 22 July 1  (Jul 2)
0.61 Thu, June 18 June 21 June 22 July 1  (Jul 2)
0.60 Fri, June 19 June 21 June 22 July 1  (Jul 2)
0 Sat, June 20 June 28 June 30 July 16  (Jul 20)
0.27 Sun, June 21 June 28 June 30 July 16  (Jul 20)
0.69 Mon, June 22 June 30 July 1 July 21  (Jul 22)
0.09 Tue, June 23 June 30 July 1 July 21  (Jul 22)
0.13 Wed, June 24 June 30 July 1 July 21  (Jul 22)
0 Thu, June 25 June 30 July 1 July 21  (Jul 22)
0.15 Fri, June 26 June 30 July 1 July 21  (Jul 22)
0 Sat, June 27 June 30 July 1 July 21  (Jul 22)
0.01 Sun, June 28 June 30 July 1 July 21  (Jul 22)
0.30 Mon, June 29 June 30 July 1 July 21  (Jul 22)
0.06 Tue, June 30 June 30 July 1 July 21  (Jul 22)