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

Current status of McIntosh and apple pests at McMillan / Newberry, 2024 (Report issued 4/25/2024 11:51)

Biofix dates



Temperature and degree day data estimated for: 2/4 - 2/7; 2/9 - 2/12; 2/20 - 3/21

Apple crop stages (McIntosh)

Last stage1st Green on 4/22
Next stage1/4" Green expected in 4 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 918DD
--Current (4/25): 37.5
Forecast (5/1): 54.2
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 mothNo development observed
Watch for biofix (first adult emergence)
----45