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  • Michigan State University Ag Bio Research
  • Project Greeen

Hickory Corners (KBS) Tart Cherry Plum Curculio Assist Chart Assist Chart (Report issued 9/20/2014 18:00 )

2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/18/138/158/178/198/218/238/258/278/298/319/29/49/69/89/109/129/149/169/18
Mon9/1561.841.751.74231958155553048944540535630427122818014192663716900
Tue9/1666.240.953.662325587561536495451411362310277234186147987243221560
Wed9/1768.635.251.96233159356754350145741736831728324019215310478492821120
Thu9/1871.23955.18233960157555050946542537632429124820016111286573629208
Fri9/1970.444.857.692348610584559517474434385333300256209170120956545382917
Today's data:
2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/18/138/158/178/198/218/238/258/278/298/319/29/49/69/89/109/129/149/169/18
Sat9/20Actual (3:15-3:20PM): 77.1Actual (3:20-3:25AM): 55.466.251623646266005755344904504013493162732251861371118261544533
Forecast data:
2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/18/138/158/178/198/218/238/258/278/298/319/29/49/69/89/109/129/149/169/18
Sun9/216258601023746366105855445004604113593262832351961471219271645543
Mon9/22634051.5423796406145905485054644163643302872392011511259675696047
Tue9/2372465910238865062459955851447442537334029724921016113510685786957
Wed9/2475496212240066263661257052648643738635230926122217314711897908169
Thu9/257551631324136756496255835394994503993653222742351861601311101039482
Fri9/267654651524288/13 - 9/268/15 - 9/268/17 - 9/268/19 - 9/268/21 - 9/268/23 - 9/268/25 - 9/268/27 - 9/268/29 - 9/268/31 - 9/269/2 - 9/269/4 - 9/269/6 - 9/269/8 - 9/269/10 - 9/269/12 - 9/269/14 - 9/269/16 - 9/269/18 - 9/26
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.