Flyspeck prevention, Group A fungicides(strobilurins and Topsin M): 1st cover through June

Background Information for this page
Return to radar list for Hollis NH
   Fyspeck infection risk increases with appearance of 1st generation colonies around June 4.  Continuous protection from June 4 until within 30 days of harvest is recommended.
    Application of a strobilurin or Topsin M fungicide no more than 38 flyspeck growth hours after the 'Protection end date' of the previous fungicide application may provide postinfection control.
Weather data for Hollis NH.  Forecast values begin November 1, 2012
Inches Rain Spray Date
Estimates assume that fungicide was applied before rain on spray date
Protection End Date
for full-dose
Flint, Sovran, or
Topsin M
(deadline for postinfection strobilurin or Topsin M)
Date flyspeck infections could appear
(Left side = estimated flyspeck show date if weather beyond end of forecast range is in top 20% of years for both temperature and wet hours.  An "x" means there is no need for this scenario because show date is within forecast range.
    
Right side = estimated flyspeck show date for small, open canopy, low-risk trees.)
0.58 Tue, May 15 June 2  (Jun. 5) x July 26 (Aug. 9)
0.28 Wed, May 16 June 2  (Jun. 5) x July 26 (Aug. 9)
0.05 Thu, May 17 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Fri, May 18 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Sat, May 19 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Sun, May 20 June 2  (Jun. 5) x July 26 (Aug. 9)
0.04 Mon, May 21 June 2  (Jun. 5) x July 26 (Aug. 9)
0.55 Tue, May 22 June 2  (Jun. 5) x July 26 (Aug. 9)
0.02 Wed, May 23 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Thu, May 24 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Fri, May 25 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Sat, May 26 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Sun, May 27 June 2  (Jun. 5) x July 26 (Aug. 9)
0 Mon, May 28 June 2  (Jun. 5) x July 26 (Aug. 9)
0.31 Tue, May 29 June 2  (Jun. 5) x July 26 (Aug. 9)
0.02 Wed, May 30 June 4  (Jun. 6) x July 28 (Aug. 10)
0 Thu, May 31 June 4  (Jun. 6) x July 28 (Aug. 10)
0 Fri, June 1 June 4  (Jun. 6) x July 28 (Aug. 10)
1.84 Sat, June 2 June 4  (Jun. 6) x July 28 (Aug. 10)
0.03 Sun, June 3 June 13  (Jun. 24) x August 6 (Aug. 27)
0.48 Mon, June 4 June 13  (Jun. 24) x August 6 (Aug. 27)
0.09 Tue, June 5 June 23  (Jun. 28) x August 9 (Sep. 3)
0.36 Wed, June 6 June 25  (Jul. 4) x August 10 (Sep. 6)
0.29 Thu, June 7 June 25  (Jul. 4) x August 10 (Sep. 6)
0.09 Fri, June 8 June 29  (Jul. 22) x August 11 (Sep. 7)
0 Sat, June 9 June 29  (Jul. 22) x August 11 (Sep. 7)
0 Sun, June 10 June 29  (Jul. 22) x August 11 (Sep. 7)
0 Mon, June 11 June 29  (Jul. 22) x August 11 (Sep. 7)
0.10 Tue, June 12 June 29  (Jul. 22) x August 11 (Sep. 7)
0.72 Wed, June 13 July 4  (Jul. 23) x August 13 (Sep. 8)
0 Thu, June 14 July 5  (Jul. 25) x August 13 (Sep. 12)
0 Fri, June 15 July 6  (Jul. 25) x August 13 (Sep. 12)
0 Sat, June 16 July 7  (Jul. 25) x August 13 (Sep. 12)
0 Sun, June 17 July 8  (Jul. 25) x August 13 (Sep. 12)
0 Mon, June 18 July 9  (Jul. 25) x August 13 (Sep. 12)
0 Tue, June 19 July 10  (Jul. 25) x August 13 (Sep. 12)
0 Wed, June 20 July 11  (Jul. 25) x August 13 (Sep. 12)
0 Thu, June 21 July 12  (Jul. 25) x August 13 (Sep. 12)
0 Fri, June 22 July 13  (Jul. 25) x August 13 (Sep. 12)
0.42 Sat, June 23 July 14  (Jul. 25) x August 13 (Sep. 12)
0 Sun, June 24 July 15  (Jul. 26) x August 14 (Sep. 13)
0.58 Mon, June 25 July 16  (Jul. 26) x August 16 (Sep. 14)
0.03 Tue, June 26 July 17  (Jul. 26) x August 16 (Sep. 14)
0 Wed, June 27 July 18  (Jul. 26) x August 17 (Sep. 17)
0 Thu, June 28 July 19  (Jul. 26) x August 17 (Sep. 17)
0.17 Fri, June 29 July 20  (Jul. 26) x August 17 (Sep. 17)
0 Sat, June 30 July 21  (Jul. 26) x August 19 (Sep. 17)