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

Seasonal history of McIntosh and apple pests at Romeo, 2024 (Report issued 4/26/2024 15:01)

Biofix dates



Temperature and degree day data estimated for: 1/30 - 2/2
DateDD42 since 1/1Apple Crop Stage (McIntosh) Insect Stages
3/890.6Dormant
3/14130.31st Green
4/9199.81/4" Green
4/10210.21/2" Green
4/14248.5Tight Cluster
4/17288.3Open Cluster
4/18304Oriental fruit moth: Biofix (first adult emergence)
4/27368.5Pink
4/28397.5King BloomOriental fruit moth: First eggs laid
4/29425Full Bloom
5/1474Codling moth: Biofix (first sustained catch)
Oriental fruit moth: Start of peak adult emergence