Fungicide template, 2017
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ABCDEFGHIJKLMNOPQRS
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Spray #Dormant0122.5*345678910111213
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Growth StageBud break3"10"12"PrebloomBloomFruit set (1st cover)BB-Pea(2nd)Pea (3rd)Berry touchVeraisonPreharvestPreharvestPostharvest
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WeekWeek 0Week 1Week 2Week3Week 4Week 5Week 6Week 8Week 10Week 12Week 14Week 16Week 18Week 20Week 22
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Example Date (2011)4/14/114/20/114/30/115/10/115/15/115/26/115/31/116/15/117/13/118/10/118/25/11
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DiseasePhomopsis
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Basic materialMancozebMancozebMancozebMancozebMancozeb
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Powdery MildewCritical Period for Clusters
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SulfurSulfurSulfur +DMISulfur + Quintec (or Vivando)sulfur +DMISulfur (+Quintec or Vivando)SulfurSulfurSulfurSulfurSulfurPotassium saltSulfur
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Downy MildewCritical Period for Clusters
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MancozebMancozebMancozeb or Ridomil MZ or Revus or RanmanMancozeb or Ridomil MZ or Revus or RanmanMancozebCopper
or Captan
or Phos acid
Copper
or Captan
or Phos acid
Copper
or Captan
or Phos acid
Copper
or Captan
or Phos acid
(or Revus
or Ranman)
Copper
or Captan
or Phos acid
(or Revus
or Ranman)
Phos acidCopper
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Black RotCritical Period for Clusters
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MancozebMancozeb +DMImancozebMancozeb + DMIMancozebMancozeb
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BotrytisBotrytisBotrytis
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Vangard or SDHI
(depends on
the pressure)
ElevateVangard
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Ripe and
bitter rot
Ripe and
bitter rot
Ripe and
bitter rot
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mancozeb + QoI
or + SDHI
or copper + others
copper + QoI
or + SDHI
copper + QoI
or + SDHI
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Note: The fungicide listed above are examples. Week numbers are estimates.Spray #3-#8 need to be flexible. Spray schedule will depend on the growth stage and rainfall. You may need to combine two into one spray or need an additional spray (e.g. spray #2.5). Around bloom, Ridomil would be a good choice especially when there are significant rain events. Please limit the use of Ridomil. Alternatives are Revus, Ranman, or Phos acid.
If powdery mildew is the chronic issue for you, it is better to use DMI or other powdery material (mix with sulfur) at prebloom, rather than wait until bloom.
Watch out for 66-d PHI for mancozeb!#6 - whether to include Quintec or Vivando may depend on the level of PM. #7 - You may need to repeat it based on the growth, e.g., #7 was repeated in 2010 and 2011.
We do not have many modes of action for downy. Use mancozeb, captan, and copper as a backbone, and mix and rotate with Revus and Ranman. Do not over use Revus or Ranman (twice/year is ideal). When night time tem gets low (#10 or 11?), you may want to use Revus or Ranman for the last application before fall downy season
If you have an issue with ripe rot, make sure to mix QoI (Abound) or SDHI (Luna or Aprovia) with mancozeb or copper and rotate!
Bird netting maybe needed. Last 3 applications will depends on the level of disease and weather
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Spray #Dormant0122.5345678910111213
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Growth StageBud Break3"10"12"PrebloomBloomBB (1st cover)Pea (2nd)Pea (3rd)Berry touchVeraisonPreharvestPreharvestPostharvest
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WeekWeeek 0Week 1Week 2Week3Week 4Week 5Week 6Week 8Week 10Week 12Week 14Week 16Week 18Week 20Week 22
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Date in 2017
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Your treatmentPhomopsisPhomopsisPhPhomopsisPhomopsis
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Powdery MildewPMPMPMPMPMPMPMPMPMPMPMPMPM
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Downy MildewDMDMDMDMDMDMDMDMDMDMDMDM
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Black RotBRBlack RotBlack RotBlack RotBlack Rot
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BotrytisBotrytisBotrytis
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Weed Target
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Material
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Insect TargetClimbing cutwormYellow jackets Nesting?Grape Berry MothJapanese beetleYellow jacket
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Material
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Cultural Practice
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Note: This template was a part of Fungicide Workbook 2013 (I am upgrading my guide into an online form, which should come by 2018). For more detailed information about disease management and other fungicide choices, please refer to the workbook or Pest Managemant Guide from VT (VCE).
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Note 2: You can download this to your computer and open with Excel or other spreadsheet of your choice. Click on "File" --> "Download As..."
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Note 3: Many thanks to Bob Ramsey (a grower in Wintergreen, VA) for the original template!
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