Plum curculio protection period

Background Information for this page
Return to radar list for Nashua NH
Adequate plum curculio damage prevention expected by maintaining insecticide residue
 from Petal fall through Sunday, June 7
(indicated by yellow highlight).
Earliest final spray date that lasts through that end date is: Monday, May 25.
Weather data for Nashua NH.  Forecast values begin August 13, 2009
95% McIntosh Petal Fall estimated or reported as:  May 11,  Monday
Full-dose
Plum Curculio (PC) insecticide
Spray Date
PC degree days accumulated on spray date Inches Rain Estimated
end of protection
Percent of
PC control period
(& PC degree days)
completed by end of protection
Mon, May 11   95% McIntosh
Petal Fall
0 May 23, Sat 49%   (152) 
Tue, May 12   6 0 May 24, Sun 54%   (167) 
Wed, May 13   16 0 May 25, Mon 59%   (183) 
Thu, May 14   23 0.16 May 26, Tue 61%   (189) 
Fri, May 15   39 0 May 27, Wed 61%   (189) 
Sat, May 16   52 0 May 28, Thu 61%   (189) 
Sun, May 17   60 0.44 May 29, Fri 63%   (194) 
Mon, May 18   62 0 May 30, Sat 68%   (210) 
Tue, May 19   72 0 May 31, Sun 72%   (221) 
Wed, May 20   90 0 June 2, Tue 80%   (247) 
Thu, May 21   115 0 June 3, Wed 84%   (260) 
Fri, May 22   141 0 June 4, Thu 89%   (274) 
Sat, May 23   152 0 June 5, Fri 92%   (285) 
Sun, May 24   167 0.02 June 6, Sat 97%   (298) 
Mon, May 25   183 0 June 7, Sun 100%   (316) 
Tue, May 26   189 0 June 8, Mon 100%   (332) 
Wed, May 27   189 0.65 June 9, Tue 100%   (339) 
Thu, May 28   189 0.19 June 11, Thu 100%   (354) 
Fri, May 29   194 0.28 June 12, Fri 100%   (368) 
Sat, May 30   210 0.16 June 12, Fri 100%   (368) 
Sun, May 31   221 0.11 June 12, Fri 100%   (368) 
Mon, June 1   230 0 June 12, Fri 100%   (368) 
Tue, June 2   247 0 June 12, Fri 100%   (368) 
Wed, June 3   260 0 June 13, Sat 100%   (386) 
Thu, June 4   274 0 June 13, Sat 100%   (386) 
Fri, June 5   285 0 June 13, Sat 100%   (386) 
Sat, June 6   298 0 June 13, Sat 100%   (386) 
Sun, June 7   316 0 June 13, Sat 100%   (386)