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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 7/1/2015 15:12 )

2015Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/15/245/265/285/306/16/36/56/76/96/116/136/156/176/196/216/236/256/276/29
Fri6/2674.260.567.417949564530490452440425398368332291259226182145114703500
Sat6/2770.955.263139625775435034654534384113813453042722391951581278348130
Sun6/2879.554.967.21797959556052048247045542939836232228925621217514510065300
Mon6/2972.559.165.816995610576536498486471444414378337305272228191160116814616
Tue6/3073.956.365.1151010625591551513501486459429393353320287243206176131966131
Today's data:
2015Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/15/245/265/285/306/16/36/56/76/96/116/136/156/176/196/216/236/256/276/29
Wed7/1Forecast: 69Actual (8:15-8:20AM): 55.662.31210236386035635265144984724414063653322992562191881431087343
Forecast data:
2015Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/15/245/265/285/306/16/36/56/76/96/116/136/156/176/196/216/236/256/276/29
Thu7/2765364.51510376526185785405285134864564203793473142702332021581238858
Fri7/379536616105366863459455654452950247243639536333028624921817413910474
Sat7/482566919107268765361357556354852149145541438234930526823719315812393
Sun7/5855972221094709675635597585570543513477436404371327290259215180145115
Mon7/6836373231117732698658620608593566536500459427394350313282238203168138
Tue7/78167742411415/24 - 7/75/26 - 7/75/28 - 7/75/30 - 7/76/1 - 7/76/3 - 7/76/5 - 7/76/7 - 7/76/9 - 7/76/11 - 7/76/13 - 7/76/15 - 7/76/17 - 7/76/19 - 7/76/21 - 7/76/23 - 7/76/25 - 7/76/27 - 7/76/29 - 7/7
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.