Michigan State University

Enviroweather

Model:

Current status of McIntosh and apple pests at Munger, 2024 (Report issued 4/26/2024 4:33)

Biofix dates

Codling moth first sustained catch (estimate: 5/1):

Obliquebanded leafroller first sustained catch:

Oriental fruit moth first adult emergence (estimate: 4/18):

Oriental fruit moth second generation adult emergence begins:

Apple crop stages (McIntosh)

Last stage	Open Cluster on 4/17
Next stage	Pink expected on 4/27
Harvest estimates	McIntosh: 9/6; Jonathan: 9/12; Red Delicious: 9/21 More details

Insect pest predictions

Insect	Last Stage	Next Stage	Selected Biofix	DD since biofix	DD Base
Apple maggot	No development observed	Emergence of adult fly expected in 829DD	--	Current (4/26): 126.4 Forecast (5/2): 209.2	50
Codling moth	No development observed	Biofix (first sustained catch) expected on 5/1	5/1	Current (4/26): Forecast (5/2): 18.8	50
Obliquebanded leafroller	No development observed	Watch for biofix (first sustained catch)	--	--	42
Oriental fruit moth	Biofix (first adult emergence) 4/18	First eggs laid expected on 4/28	4/18	Current (4/26): 42.8 Forecast (5/2): 155.3	45

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