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

Current status of McIntosh and apple pests at East Lansing (HTRC), 2024 (Report issued 4/19/2024 1:13)

Biofix dates



Temperature and degree day data estimated for: 4/18

Apple crop stages (McIntosh)

Last stageOpen Cluster on 4/14
Next stagePink expected on 4/21
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 831DD
--Current (4/19): 124.4
Forecast (4/25): 133.6
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)
4/15
First eggs laid
expected in 34DD
4/15Current (4/19): 52.9
Forecast (4/25): 74.5
45