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East Lansing (MSUHort) Alfalfa Weevil Development Assist Chart (Report issued 7/6/2015 18:08)

Start scouting for adults when temperatures are greater than 48°F

Missing temperature and degree day data for dates: 2015-04-29; 2015-05-10 - 2015-05-12
Life Stage Predicted Date Observed Date
Light feeding starts 5/16/2015
(Temperatures from 3/1 - 5/16 used)
 
Major feeding starts 5/25/2015
(Temperatures from 5/16 - 5/25 used)
 
Pupation starts (major feeding continues) 6/3/2015
(Temperatures from 5/25 - 6/3 used)
 
End of pupation and feeding 6/15/2015
(Temperatures from 6/3 - 6/15 used)
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