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

Current status of McIntosh and apple pests at Alpine Twp / Comstock Park, 2024 (Report issued 4/19/2024 4:40)

Biofix dates



Temperature and degree day data estimated for: 4/3

Apple crop stages (McIntosh)

Last stageOpen Cluster on 4/15
Next stagePink expected on 4/25
Harvest estimatesAvailable 41 days after full bloom

Insect pest predictions

InsectLast StageNext StageSelected
Biofix
DD since biofixDD Base
Apple maggotNo development observed
Emergence of adult fly
expected in 839DD
--Current (4/19): 116.1
Forecast (4/25): 123.3
50
Codling mothNo development observed
Watch for biofix (first sustained catch)
----50
Obliquebanded leafrollerNo development observed
Watch for biofix (first sustained catch)
----42
Oriental fruit mothBiofix (first adult emergence)
4/16
First eggs laid
expected in 54DD
4/16Current (4/19): 33.7
Forecast (4/25): 52.5
45