Skip to main content
  • MSU Extension
  • Michigan State University Ag Bio Research
  • Project Greeen

Hickory Corners (KBS) Tart Cherry Plum Curculio Assist Chart Assist Chart (Report issued 10/26/2014 4:29 )

2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/19/189/209/229/249/269/289/3010/210/410/610/810/1010/1210/1410/1610/1810/2010/2210/24
Tue10/2148.631.740.2025642322161911781541269887716960534833145400
Wed10/2251.330.841025642322161911781541279987716960544834145400
Thu10/2360.827.2443256623521919418115612910190747262565036178730
Fri10/2465.438.451.9525722402241991861621351079579776862564222131285
Sat10/2567.940.654.3725782472312061931681411131028684746862482920191512
Today's data:
2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/19/189/209/229/249/269/289/3010/210/410/610/810/1010/1210/1410/1610/1810/2010/2210/24
Sun10/26Forecast: 60Forecast: 4150.5325822502342091961721451171058987787266523223221815
Forecast data:
2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/19/189/209/229/249/269/289/3010/210/410/610/810/1010/1210/1410/1610/1810/2010/2210/24
Mon10/277343581025912602432192061811541261159897878175614232312825
Tue10/2861575992600269252228215190163135124107106969084705141403734
Wed10/2951414602600269252228215190163135124108106969084705141413734
Thu10/3052364402601269253228215191163135124108106979085705142413734
Fri10/31483943.502601269253228215191163135124108106979085705142413734
Sat11/1442936.502601269253228215191163135124108106979085705142413734
Directions:

Locate the Biofix Date (date of full bloom) on the top row. Follow that column down to determine the Base 50F Growing Degree Days (GDD) that have accumulated between the biofix date and the date listed at the left side of that row. Note that forecast data is provided (where available) to help with planning in the near-term. Control is recommended at 375 GDD from the biofix date. Repeat for additional blocks that bloomed on a different date.

MSU Tart Cherry Postponed Insecticide Treatment Strategy (P.I.T.S.) for Plum Curculio:
  • Use date of full bloom as biofix date.
  • Time control for 375 degree days (base 50F) from the biofix date.
  • This model is not recommended for growers that are not intensively scouting their orchards.