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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 7/24/2014 10:37 )

2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/16/166/186/206/226/246/266/286/307/27/47/67/87/107/127/147/167/187/207/22
Sat7/1981.352.566.917131764058954851547242738633328525923118915312380523000
Sun7/2083.657.470.52113386616095685354924484063543062802522101741431017251210
Mon7/218558.471.72213606826315905575144694283753273022732311961651229472420
Tue7/2285.66072.8231382705654613580537492451398350324296254218188145117956523
Wed7/2376.957.667.21714007226716305975545094684153673423132712362051621341128240
Today's data:
2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/16/166/186/206/226/246/266/286/307/27/47/67/87/107/127/147/167/187/207/22
Thu7/24Forecast: 74Actual (6:40-6:45AM): 55.164.551514147376866446125695244824303823563282862502201771481279755
Forecast data:
2014Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/16/166/186/206/226/246/266/286/307/27/47/67/87/107/127/147/167/187/207/22
Fri7/2578526515142975270165962758453949744539737134330126523519216314211270
Sat7/26846373.524145377672468365060756352146842139536632428925821518716513593
Sun7/27846976.5271479802751709677634589547495447421393351315285242213192162120
Mon7/28745866161495818767725693650605563511463437409367331301258229208178136
Tue7/29755364141509832781739707664619577525477451423381345315272243222192150
Wed7/30775666.5171526849797756723680636594541494468439397362331288260238208166
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.