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  • Michigan State University Extension
  • Michigan State University Ag Bio Research
  • Project GREEEN

Current status of McIntosh and apple pests at Constantine, 2024 (Report issued 4/25/2024 12:19)

Biofix dates



Temperature and degree day data estimated for: 4/19

Apple crop stages (McIntosh)

Last stageFull Bloom on 4/18
Next stagePetal Fall expected on 4/28
Harvest estimatesMcIntosh: 8/26; Jonathan: 9/10; Red Delicious: 9/15
More details

Insect pest predictions

InsectLast StageNext StageSelected
Biofix
DD since biofixDD Base
Apple maggotNo development observed
Emergence of adult fly
expected in 791DD
--Current (4/25): 164.1
Forecast (5/1): 248.5
50
Codling mothNo development observed
Biofix (first sustained catch)
expected on 4/28
4/28Current (4/25):
Forecast (5/1): 63.5
50
Obliquebanded leafrollerNo development observed
Watch for biofix (first sustained catch)
----42
Oriental fruit mothFirst eggs laid
4/17
Start of peak adult emergence
expected on 4/28
4/13Current (4/25): 108.8
Forecast (5/1): 220.9
45