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

Seasonal history of McIntosh and apple pests at Grant, 2024 (Report issued 5/7/2024 20:07)

Biofix dates



Temperature and degree day data estimated for: 1/15
DateDD42 since 1/1Apple Crop Stage (McIntosh) Insect Stages
3/494.2Dormant
3/13135.91st Green
4/8202.81/4" Green
4/9214.11/2" Green
4/13247Tight Cluster
4/16292.2Open Cluster
4/17309.4Oriental fruit moth: Biofix (first adult emergence)
4/27379.9Pink
4/28398.6King BloomOriental fruit moth: First eggs laid
4/30428.7Full Bloom
5/3482.4Oriental fruit moth: Start of peak adult emergence
5/4502.5Codling moth: Biofix (first sustained catch)
5/5519.4Petal Fall
5/12614.1Oriental fruit moth: End of peak adult emergence