Flyspeck prevention, Full 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 21.  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 21, the estimated end of the 50 wet hour postinfection control window is June 24.
Weather data for Greenville RI.  Forecast values begin September 2, 2008
Inches Rain Spray Date
- assumes that fungicide was applied before any rain recorded on spray date
Protection End Date for full-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 Wed, May 28 June 11 June 16 July 1  (Jul 5)
0 Thu, May 29 June 12 June 16 July 1  (Jul 5)
0 Fri, May 30 June 13 June 16 July 1  (Jul 5)
0.21 Sat, May 31 June 14 June 16 July 1  (Jul 5)
0 Sun, June 1 June 15 June 17 July 4  (Jul 18)
0 Mon, June 2 June 16 June 20 July 5  (Jul 20)
0 Tue, June 3 June 16 June 20 July 5  (Jul 20)
0.50 Wed, June 4 June 16 June 20 July 5  (Jul 20)
0.03 Thu, June 5 June 19 June 23 July 20  (Jul 22)
0.38 Fri, June 6 June 20 June 23 July 20  (Jul 22)
0 Sat, June 7 June 21 June 23 July 20  (Jul 23)
0 Sun, June 8 June 22 June 24 July 21  (Jul 23)
0 Mon, June 9 June 23 June 28 July 22  (Jul 26)
0 Tue, June 10 June 24 July 1 July 23  (Jul 30)
0 Wed, June 11 June 24 July 1 July 23  (Jul 30)
0 Thu, June 12 June 24 July 1 July 23  (Jul 30)
0 Fri, June 13 June 24 July 1 July 23  (Jul 30)
0 Sat, June 14 June 24 July 1 July 23  (Jul 30)
0.42 Sun, June 15 June 24 July 1 July 23  (Jul 30)
0.75 Mon, June 16 June 24 July 1 July 23  (Jul 30)
0.11 Tue, June 17 July 1 July 4 July 27  (Aug 2)
0.26 Wed, June 18 July 2 July 5 July 30  (Aug 3)
0.02 Thu, June 19 July 3 July 5 July 30  (Aug 5)
0.06 Fri, June 20 July 4 July 18 August 1  (Aug 5)
0 Sat, June 21 July 4 July 18 August 1  (Aug 5)
0.09 Sun, June 22 July 4 July 18 August 1  (Aug 5)
0.26 Mon, June 23 July 4 July 18 August 1  (Aug 5)
0.64 Tue, June 24 July 5 July 20 August 2  (Aug 6)
0 Wed, June 25 July 9 July 21 August 5  (Aug 7)
0 Thu, June 26 July 10 July 21 August 5  (Aug 7)
0 Fri, June 27 July 11 July 21 August 5  (Aug 7)
0 Sat, June 28 July 12 July 21 August 5  (Aug 7)
0.02 Sun, June 29 July 13 July 21 August 5  (Aug 7)
0.13 Mon, June 30 July 14 July 21 August 5  (Aug 7)