| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Spray # | Dormant | 0 | 1 | 2 | 2.5* | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | ||
2 | Growth Stage | Bud break | 3" | 10"-12" | 14"-18" | Prebloom | Bloom | Fruit set (1st cover) | BB-Pea (2nd cover) | Pea (3rd cover) | Berry touch | Veraison | Preharvest | Preharvest | Postharvest | ||||
3 |  |  |  |  |  |  |  |  | |||||||||||
4 | Week | Week 0 | Week 1 | Week 2 | Week3 | Week 4 | Week 5 | Week 6 | Week 8 | Week 10 | Week 12 | Week 14 | Week 16 | Week 18 | Week 20 | Week 22 | |||
5 | Example Date (Chardonnay @ northern VA) | 4/14/19 | 4/20/19 | 4/30/19 | 5/10/19 | 5/15/19 | 5/26/19 | 5/31/19 | 6/15/19 | 7/13/19 | 8/10/19 | 8/25/19 | |||||||
6 | Materials | Phomopsis | |||||||||||||||||
7 | Best: M3, M4, Good (but not preferred): 11, 1, 7, Fair: M1, M2 |  | Mancozeb | Mancozeb | Mancozeb | Mancozeb | Mancozeb | ||||||||||||
8 | Powdery Mildew | Critical Period for Clusters | |||||||||||||||||
9 | Best: M2, Good: M1, 3, 13, 50, 7, U6 (M works too, but check the label) |  | Sulfur | Sulfur | Sulfur +DMI | Sulfur + Quintec (or Vivando) | sulfur +DMI | Sulfur (+Quintec or Vivando) | Sulfur | Sulfur | Sulfur | Sulfur | Sulfur | Potassium salt | Sulfur | ||||
10 | Downy Mildew | Critical Period for Clusters | |||||||||||||||||
11 | Best: M3, M4, M1, P07, 21, 40, 40+45, 4 (Note: resistance issue with 40 and 4) |  | Mancozeb | Mancozeb | Mancozeb or Ridomil MZ or Revus or Ranman | Mancozeb or Ridomil MZ or Revus or Ranman | Mancozeb | Copper 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 acid | Copper | |||||
12 | Black Rot | Critical Period for Clusters | |||||||||||||||||
13 | Best: M3, 3, 7 (see label), 11, (note: M1 and M4 do not work) |  | Mancozeb | Mancozeb +DMI | mancozeb | Mancozeb + DMI | Mancozeb | Mancozeb | |||||||||||
14 | Botrytis | Botrytis | Botrytis | ||||||||||||||||
15 | Good: 2, 7, 9, 12+9, 17, OK: 19, fair: M1, M4 (Best to combine M1 or M4 with another MOA due to resistance risks) |  | Vangard or a SDHI (depends on the pressure) | Elevate | Vangard | ||||||||||||||
16 | Ripe rot | Ripe and bitter rot | Ripe and bitter rot | ||||||||||||||||
17 | Use a combination of M3 or M4 PLUS 2, 3 (tebuconazole), 11, 9+12 |  | mancozeb + QoI or + DMI or copper + others | copper + QoI or + iprodione, or + DMI | copper + QoI or + iprodione, or + DMI | ||||||||||||||
18 | Spray example | Mancozeb | Mancozeb + sulfur | Copper (if necessary) | Mancozeb + Sulfur + DMI | Mancozeb + Sulfure + QoI + Vangard + Vivando | Mancozeb + Sulfure + DMI | Mancozeb + sulfur | Captan + Phos acid | Copper + iprodione | Copper | Copper + Vangard + QoI | Revus + Quintec | Phos acid | Copper | ||||
19 | Note: The fungicide listed above are examples. Week numbers are estimates. | Spray #3-#8 needs to be flexible. The spray schedule will depend on the growth stage and rainfall. You may need to combine two into one spray or 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 a chronic issue for you, it is better to use DMI or other powdery material (mix with sulfur) at pre-bloom, rather than wait until bloom. (The same most likely apply to downy mildew and black rot. Ripe rot at bloom is optional, but if you have seen ripe rot in the past, it is probably a good insurance to have Aprovia or Switch. | Watch out for 66-d PHI for mancozeb! | #6 - whether to include Quintec or Vivando may depend on the PM level. #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 overuse Revus or Ranman (twice/a year is ideal). PLUS, both are protective materials that need to be applied before you see downy! When nighttime temperature gets low (around #7), downy mildew can sneak up on you. If you have an issue with ripe rot, make sure to mix Switch, QoI (Abound), or iprodione (e.g. Meteor) with mancozeb or copper and rotate! | Bird netting maybe needed. Last 3 applications will depends on the level of disease and weather | ||||||||||||||
20 | |||||||||||||||||||
21 | Spray # | Dormant | 0 | 1 | 2 | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | ||
22 | Growth Stage | Bud Break | 3" | 10" | 12" | Prebloom | Bloom | Fruit set (1st cover) | BB-Pea (2nd cover) | Pea (3rd cover) | Berry touch | Veraison | Preharvest | Preharvest | Postharvest | ||||
23 | Week | Weeek 0 | Week 1 | Week 2 | Week3 | Week 4 | Week 5 | Week 6 | Week 8 | Week 10 | Week 12 | Week 14 | Week 16 | Week 18 | Week 20 | Week 22 | |||
24 | Date in 2021 | ||||||||||||||||||
25 | Spray plan | Phomopsis | Phomopsis | Ph | Phomopsis | Phomopsis | |||||||||||||
26 | |||||||||||||||||||
27 | Powdery Mildew | PM | PM | PM | PM | PM | PM | PM | PM | PM | PM | PM | PM | PM | |||||
28 | |||||||||||||||||||
29 | Downy Mildew | DM | DM | DM | DM | DM | DM | DM | DM | DM | DM | DM | DM | ||||||
30 | |||||||||||||||||||
31 | Black Rot | BR | BR | BR | BR | BR | |||||||||||||
32 | |||||||||||||||||||
33 | Botrytis | Botrytis | Botrytis | ||||||||||||||||
34 | |||||||||||||||||||
35 | Ripe rot | Ripe rot | Ripe rot and bitter rot | ||||||||||||||||
36 | |||||||||||||||||||
37 | Your spray | ||||||||||||||||||
38 | Weed Target | ||||||||||||||||||
39 | Material | ||||||||||||||||||
40 | Insect Target | Climbing cutworm | Yellow jackets Nesting? | Grape Berry Moth | Japanese beetle | Yellow jacket | Spotted lanternfly | ||||||||||||
41 | Material | ||||||||||||||||||
42 | Cultural Practice | ||||||||||||||||||
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47 | Note: This template was prepared as a supplemental material of my workshops and not meant to be used alone. The materials listed are examples, but not my recommendations. You need to develop your own program based on your site, cultivar, environmental conditions, and disease history. I am upgrading my guide into GrapeIPM.org. For more detailed information about disease management and other fungicide choices, please refer to the workbook or Pest Managemant Guide from VT (VCE). | ||||||||||||||||||
48 | Note 2: You can download this to your computer and open with Excel or other spreadsheet of your choice. Click on "File" --> "Download As..." OR choose "Add to My Drive" to copy to your account. | ||||||||||||||||||
49 | Note 3: Many thanks to Mr. Bob Ramsey (a grower in Wintergreen, VA) for the original template! | ||||||||||||||||||
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