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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 15:39)

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 8 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