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

Current status of McIntosh and apple pests at Fennville, 2024 (Report issued 4/25/2024 4:20)

Biofix dates



Temperature and degree day data estimated for: 1/12; 2/18

Apple crop stages (McIntosh)

Last stagePink on 4/23
Next stageKing Bloom expected on 4/27
Harvest estimatesMcIntosh: 9/6; Jonathan: 9/11; Red Delicious: 9/17
More details

Insect pest predictions

InsectLast StageNext StageSelected
Biofix
DD since biofixDD Base
Apple maggotNo development observed
Emergence of adult fly
expected in 831DD
--Current (4/25): 124.7
Forecast (5/1): 187.7
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 on 4/27
4/16Current (4/25): 53.1
Forecast (5/1): 143.8
45