Plum curculio protection period

Background Information for this page
Return to radar list for South Burlington VT
   Need for protection against plum curculio egglaying begins around fruit set. 
    A final plum curculio insecticide application on Saturday, June 29 is expected to give adequate protection until the end of the immigration period on Saturday, June 29 (indicated by yellow highlight).
If using Surround deterrent, rough estimate for decline in plum curculio egglaying is Saturday, June 29.
Weather data for South Burlington VT.  Forecast values begin May 19, 2013
95% McIntosh Petal Fall estimated or reported as:  May 18,  Saturday
Full-dose
Plum Curculio insecticide
application 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 18   95% McIntosh
Petal Fall
0 May 24, Fri 19%   (57) 
Sun, May 19   8 0.26 May 24, Fri 19%   (57) 
Mon, May 20   21 0.26 May 30, Thu 26%   (80) 
Tue, May 21   29 0 May 31, Fri 26%   (80) 
Wed, May 22   36 0.45 June 1, Sat 26%   (80) 
Thu, May 23   49 0.60 June 4, Tue 26%   (80) 
Fri, May 24   57 0.43 June 5, Wed 26%   (80) 
Sat, May 25   62 0.08 June 6, Thu 26%   (80) 
Sun, May 26   67 0 June 7, Fri 26%   (80) 
Mon, May 27   73   June 9, Sun 26%   (80) 
Tue, May 28   80   June 10, Mon 26%   (80) 
Wed, May 29   80   June 11, Tue 26%   (80) 
Thu, May 30   80   June 12, Wed 26%   (80) 
Fri, May 31   80   June 13, Thu 26%   (80) 
Sat, June 1   80   June 14, Fri 26%   (80) 
Sun, June 2   80   June 15, Sat 26%   (80) 
Mon, June 3   80   June 16, Sun 26%   (80) 
Tue, June 4   80   June 18, Tue 26%   (80) 
Wed, June 5   80   June 19, Wed 26%   (80) 
Thu, June 6   80   June 20, Thu 26%   (80) 
Fri, June 7   80   June 21, Fri 26%   (80) 
Sat, June 8   80   June 22, Sat 26%   (80) 
Sun, June 9   80   June 23, Sun 26%   (80) 
Mon, June 10   80   June 24, Mon 26%   (80) 
Tue, June 11   80   June 25, Tue 26%   (80) 
Wed, June 12   80   June 26, Wed 26%   (80) 
Thu, June 13   80   June 27, Thu 26%   (80) 
Fri, June 14   80   June 28, Fri 26%   (80) 
Sat, June 15   80   June 29, Sat 26%   (80) 
Sun, June 16   80   June 30, Sun 26%   (80) 
Mon, June 17   80   July 1, Mon 26%   (80) 
Tue, June 18   80   July 2, Tue 26%   (80) 
Wed, June 19   80   July 3, Wed 26%   (80) 
Thu, June 20   80   July 4, Thu 26%   (80) 
Fri, June 21   80   July 5, Fri 26%   (80) 
Sat, June 22   80   July 6, Sat 26%   (80) 
Sun, June 23   80   July 7, Sun 26%   (80) 
Mon, June 24   80   July 8, Mon 26%   (80) 
Tue, June 25   80   July 9, Tue 26%   (80) 
Wed, June 26   80   July 10, Wed 26%   (80) 
Thu, June 27   80   July 11, Thu 26%   (80) 
Fri, June 28   80   July 12, Fri 26%   (80)