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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 5/28/2015 19:53 )

2015Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/14/204/224/244/264/284/305/25/45/65/85/105/125/145/165/185/205/225/245/26
Sat5/2379.940.860.4123852802772772742712622502272081721331061018545261900
Sun5/2476.65163.81439929329129128828527626424022218614712011599594033140
Mon5/2579.262.470.821420314312312309306297285261242207168141136120806154350
Tue5/2682.464.773.52444333833633633232932030828526623019116415914310384775824
Wed5/2774.957.566.216459354352352348345336325301282246207180176160120100937440
Today's data:
2015Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/14/204/224/244/264/284/305/25/45/65/85/105/125/145/165/185/205/225/245/26
Thu5/28Actual (6:40-6:45PM): 79.3Actual (5:20-5:25AM): 51.565.4154753693673673643613523403162972622231961911751351161099055
Forecast data:
2015Temperature(F)Degree Days Base 50 FBiofix Date (Full bloom)
DayDateMaxMinAvgTodaySince 3/14/204/224/244/264/284/305/25/45/65/85/105/125/145/165/185/205/225/245/26
Fri5/29846373.52449839339139138738437536334032128524621921419815813913211379
Sat5/30746770.52151941341141140840539638436034130626724023521917916015313499
Sun5/316646567525420418418415412402391367348312273246242226186167160141106
Mon6/1724357.59534429427427424421411400376357321282255251235195176169150115
Tue6/273516212546441439439436433423412388369333294267263247207188181162127
Wed6/3815668.5195654/20 - 6/34/22 - 6/34/24 - 6/34/26 - 6/34/28 - 6/34/30 - 6/35/2 - 6/35/4 - 6/35/6 - 6/35/8 - 6/35/10 - 6/35/12 - 6/35/14 - 6/35/16 - 6/35/18 - 6/35/20 - 6/35/22 - 6/35/24 - 6/35/26 - 6/3
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.