Michigan State University

Enviroweather

Model:

Current status of McIntosh and apple pests at Leslie, 2024 (Report issued 4/26/2024 14:28)

Biofix dates

Codling moth first sustained catch (estimate: 4/30):

Obliquebanded leafroller first sustained catch:

Oriental fruit moth first adult emergence (estimate: 4/15):

Oriental fruit moth second generation adult emergence begins:

Apple crop stages (McIntosh)

Last stage	King Bloom on 4/26
Next stage	Full Bloom expected on 4/27
Harvest estimates	McIntosh: 9/2; Jonathan: 9/4; Red Delicious: 9/10 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 816DD	--	Current (4/26): 139.9 Forecast (5/2): 236.4	50
Codling moth	No development observed	Biofix (first sustained catch) expected on 4/30	4/30	Current (4/26): Forecast (5/2): 41	50
Obliquebanded leafroller	No development observed	Watch for biofix (first sustained catch)	--	--	42
Oriental fruit moth	First eggs laid 4/26	Start of peak adult emergence expected on 4/29	4/15	Current (4/26): 79.9 Forecast (5/2): 206.4	45

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