Plum curculio protection period

Background Information for this page
Return to radar list for Middletown RI
Adequate plum curculio damage prevention expected by maintaining insecticide residue
 from Petal fall through Wednesday, June 11
(indicated by yellow highlight).
Earliest final spray date that lasts through that end date is: Thursday, May 29.
Weather data for Middletown RI.  Forecast values begin August 3, 2008
95% McIntosh Petal Fall estimated or reported as:  May 17,  Saturday
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
Sat, May 17   95% McIntosh
Petal Fall
0.57 May 29, Thu 27%   (83) 
Sun, May 18   8 0.01 May 30, Fri 31%   (97) 
Mon, May 19   12 0 May 31, Sat 35%   (106) 
Tue, May 20   13 0.39 June 1, Sun 40%   (122) 
Wed, May 21   18 0 June 2, Mon 45%   (139) 
Thu, May 22   20 0.03 June 3, Tue 50%   (155) 
Fri, May 23   29 0 June 4, Wed 54%   (165) 
Sat, May 24   39 0 June 5, Thu 56%   (173) 
Sun, May 25   49 0 June 6, Fri 58%   (179) 
Mon, May 26   58 0 June 8, Sun 73%   (224) 
Tue, May 27   68 0.14 June 9, Mon 83%   (256) 
Wed, May 28   75 0 June 10, Tue 92%   (283) 
Thu, May 29   83 0 June 11, Wed 100%   (310) 
Fri, May 30   97 0 June 12, Thu 100%   (331) 
Sat, May 31   106 0.12 June 13, Fri 100%   (346) 
Sun, June 1   122 0 June 14, Sat 100%   (364) 
Mon, June 2   139 0 June 15, Sun 100%   (376) 
Tue, June 3   155 0 June 16, Mon 100%   (387) 
Wed, June 4   165 0.54 June 16, Mon 100%   (387) 
Thu, June 5   173 0 June 18, Wed 100%   (416) 
Fri, June 6   179 0.19 June 18, Wed 100%   (416) 
Sat, June 7   196 0 June 21, Sat 100%   (466) 
Sun, June 8   224 0 June 22, Sun 100%   (486) 
Mon, June 9   256 0 June 22, Sun 100%   (486) 
Tue, June 10   283 0 June 22, Sun 100%   (486) 
Wed, June 11   310 0 June 22, Sun 100%   (486)