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At the Missouri State Fruit Experiment Station

Archives for April 2012

Leafrollers in the high tunnel raspberries again

April 30, 2012 by Marilyn Odneal

Leafroller in the rasbperry leaf

We are seeing a few leafrollers in the high tunnel raspberries again this year. We also see a few in the adjacent raspberries outside the tunnel. We just picked them off last year and unless they become more of a problem, we will do the same this year. … [Read more...] about Leafrollers in the high tunnel raspberries again

Filed Under: Small Fruit Crops

Clusterless Catawbas

April 30, 2012 by Marilyn Odneal

Several vines in the West Catawba have no clusters at all

Last year we skipped several vines that had no fruit when we were havesting the West Catawba. This year we noticed several vines with no clusters. We did have some Chambourcin vines that did not have clusters either and we found that they were propagated from the same vine (which had been removed so we were not sure if it was fruitless or not). Anyway, we are tagging these … [Read more...] about Clusterless Catawbas

Filed Under: Grapes

Grape phenology and GDD accumulation

April 30, 2012 by Marilyn Odneal

N Traminette E-L Stage 14-17

GDD base 50 accumulated since April 1 = +267 (+132 departure from normal) at Mountain Grove http://agebb.missouri.edu/weather/reports/gddTable.asp March 2012 GDD base 50: 306+267 = 573 Phenology stages according to the Modified E-L system http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf … [Read more...] about Grape phenology and GDD accumulation

Filed Under: Grapes, Phenology

Concord problem

April 25, 2012 by Marilyn Odneal

Symptoms on Concord on April 16, 2012

Hindsight has given us some information on this problem first noted in 2012. Having noted damage from Pristine application to Concord and Norton in 2013, I have dialed back to this Concord problem. At this point we believe the symptom to be injury from Pristine fungicide application.   … [Read more...] about Concord problem

Filed Under: Grapes

Grape phenology and GDD accumulation

April 23, 2012 by Marilyn Odneal

N Traminette E-L Stage 13-15

GDD base 50 accumulated since April 1 = +170 (+92 departure from normal) at Mountain Grove http://agebb.missouri.edu/weather/reports/gddTable.asp March 2012 GDD base 50: 306+170 = 476 Phenology stages according to the Modified E-L system http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf … [Read more...] about Grape phenology and GDD accumulation

Filed Under: Grapes, Phenology

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  • Grape Phenology and GDD accumulation
  • Grape Phenology and GDD accumulation
  • Grape Phenology and GDD accumulation
  • Grape Phenology and GDD accumulation
  • Grape Phenology and GDD accumulation

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