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

Current status of McIntosh and apple pests at Kent City, 2024 (Report issued 4/19/2024 7:06)

Biofix dates



Temperature and degree day data estimated for: 4/18

Apple crop stages (McIntosh)

Last stageOpen Cluster on 4/16
Next stagePink expected in 27 DD
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 852DD
--Current (4/19): 103.1
Forecast (4/25): 110.1
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)
4/17
First eggs laid
expected in 70DD
4/17Current (4/19): 18.9
Forecast (4/25): 37
45