Michigan State University

Enviroweather

Model:

Current status of McIntosh and apple pests at Fairgrove, 2024 (Report issued 4/24/2024 15:27)

Biofix dates

Codling moth first sustained catch:

Obliquebanded leafroller first sustained catch:

Oriental fruit moth first adult emergence (estimate: 4/17):

Oriental fruit moth second generation adult emergence begins:

Apple crop stages (McIntosh)

Last stage	Open Cluster on 4/15
Next stage	Pink expected on 4/26
Harvest estimates	McIntosh: 9/7; Jonathan: 9/7; Red Delicious: 9/17 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 (4/24): 126.4 Forecast (4/30): 188.8	50
Codling moth	No development observed	Watch for biofix (first sustained catch)	--	--	50
Obliquebanded leafroller	No development observed	Watch for biofix (first sustained catch)	--	--	42
Oriental fruit moth	Biofix (first adult emergence) 4/17	First eggs laid expected on 4/28	4/17	Current (4/24): 46.5 Forecast (4/30): 133.2	45

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