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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 - North, 2024 (Report issued 3/28/2024 5:44)

Biofix dates



Temperature and degree day data estimated for: 1/10; 1/14 - 1/24; 1/26 - 1/30

Apple crop stages (McIntosh)

Last stage1st Green on 3/13
Next stage1/4" Green expected in 10 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 912DD
--Current (3/28): 43
Forecast (4/3): 43.1
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 mothNo development observed
Watch for biofix (first adult emergence)
----45