Michigan State University

Enviroweather

Model:

Current status of McIntosh and apple pests at Hartford, 2024 (Report issued 5/1/2024 17:46)

Biofix dates

Codling moth first sustained catch (estimate: 4/28):

Obliquebanded leafroller first sustained catch:

Oriental fruit moth first adult emergence (estimate: 4/13):

Oriental fruit moth second generation adult emergence begins:

Apple crop stages (McIntosh)

Last stage	Petal Fall on 4/28
Next stage	First Cover expected in 46 DD
Harvest estimates	McIntosh: 8/24; Jonathan: 9/8; Red Delicious: 9/14 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 706DD	--	Current (5/1): 249 Forecast (5/7): 322.9	50
Codling moth	Biofix (first sustained catch) 4/28	Egg laying starts expected on 5/5	4/28	Current (5/1): 57.2 Forecast (5/7): 131.1	50
Obliquebanded leafroller	No development observed	Watch for biofix (first sustained catch)	--	--	42
Oriental fruit moth	Start of peak adult emergence 4/28	End of peak adult emergence expected on 5/3	4/13	Current (5/1): 216.8 Forecast (5/7): 319.8	45

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