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

Current status of McIntosh and apple pests at Sparta, 2024 (Report issued 4/20/2024 6:02)

Biofix dates



Apple crop stages (McIntosh)

Last stageOpen Cluster on 4/16
Next stagePink expected in 6 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 845DD
--Current (4/20): 110.1
Forecast (4/26): 122.2
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 (4/20): 20.4
Forecast (4/26): 47.2
45