Sprout Field Development Update
I got a report from Yarmouth county and we start to
see plants push through the ground in those areas. I compared local accumulation
GDD in this area (GDD- 260 on May 10) which is close to the predicted plant
emergence start GDD requirement (GDD- 270). Some variation is expected. I
expect other early developing areas in the central area would start to see plant
emergence later this week.
(Photo Credit: Peter Van Dyk)
Wild Blueberry Floral Bud F2 Stage and Monilinia Infection Periods
I don’t have many new numbers to share (Table 1) as most
areas I was able to get to in the last few weeks were above the 40-50% F2 stage,
and I didn’t get a chance to visit Pictou, Antigonish and Guysborough counties.
I spoke with growers from those late areas and we are
looking at an average of 20-30% F2, but with the warm temperatures this week, I
expect those late areas will get to 40% soon.
For all fields with 40% or more F2 stage, it looks
like there could be a long infection period, starting Sunday, May 15, till next
Tuesday, May 17 (Table 2). That forecast information is from weather stations
we have in wild blueberry fields. According to the weather network, next week
could be a wet week as well. Please
keep monitoring your field and local weather, and be prepared for the upcoming
infection period. Your first monilinia application usually is good for 7-10
days and the second application is recommended if any wetness period is coming
after this first 7-10 days protection window.
Please see the below summary table of the percentage of
wild blueberry floral bud at the F2 stage. You can also click on this map to
check those numbers. Detailed information is also available under the Wild
Blueberry Blog- GDD&
Phenology Tracker.
Table 1. Percentage of
Wild Blueberry Floral Bud F2 stage
*light green (0-20% F2), dark green (20-30% F2), yellow
(30-40% F2) and red (40-100% F2)
*Once the areas and
fields get to 40% F2 or above, I will stop updating numbers as I can focus on
other areas. Once you are at or above 40%, please monitor your local weather
and make a management decision.
|
Wild blueberry production regions, NS |
The average percentage of floral buds at
F2 |
|
|
|
|
Cape Breton |
|
|
|
|
|
Cumberland County |
|
|
Oxford (early field) |
May 9- 65% |
|
Mapleton (Lynn Mt.) |
May 9- 61% |
|
Halfway River |
April 26- 40% |
|
Lower Greenville |
April
25- 15% |
|
Westchester Station |
April
25- 17% |
|
Fenwick |
May 2- 40% |
|
Springhill |
May 3- 41.2% |
|
Diligent River flat |
May
5- 10-15% |
|
Wentworth |
May 2- 40% |
|
New Canaan |
May 5- 40% |
|
Millvale |
May
3- 34.7% |
|
Windham Hill |
May 3- 13.8% |
|
Prospect and Newville Rd. area |
May 5- 30-35% |
|
York Settlement/ Glasgow Mt. |
May 5- 30-35% |
|
Fox Point |
May 5- 20% |
|
|
|
|
South West Nova Scotia |
|
|
Queens County |
April 23- 42% |
|
Digby County |
April 29- 50% |
|
Annapolis County |
April 29- 50% |
|
|
|
|
Hants County |
|
|
|
|
|
Halifax County |
|
|
|
|
|
Guysborough County |
|
|
|
|
|
Colchester County |
|
|
Murray Siding |
May 9- 85% |
|
Belmont |
May 9- 51% |
|
Glenholme |
May 9- 57% |
|
Debert (WBPANS office) |
May 2- 44% |
|
Debert (Debert Airport) |
May 2- 45% |
|
Debert (near the railway track) |
May 2- 40% |
|
Baseline Rd. |
May 2- above 40% |
|
Greenfield |
May 6- 50% |
|
Economy |
May 2- 40% |
|
Portapique |
May 2- 40% |
|
Highland Village |
May 2- 27% |
|
Great Village |
May 2- 27% |
|
Tatamagouche Mt. |
May 2- 17% |
|
Earltown |
May 9- 20% |
|
|
|
|
Pictou and Antigonish County |
|
|
New France |
May 9- 10% |
|
Maryvale |
April 27- 5% |
|
Mt Thom |
April 27- 12% |
|
Kemptown |
April 27- 15% |
|
Sunny Brae |
April 28- 5% |
*Thanks to everyone who
contributed information and a special thank you to staff from the Bragg group
(Roy Hunter and Richard Langille) who share information with me weekly.
Table 2. Weather Forecast for
Potential Wetness and Monilinia Infection Periods
|
Weather
Station and Location |
Potential
Wetness and Monilinia Infection Periods *ONLY
when your field is at or above 40%!!! *Predict
period: May 11-17; reported date: May 10 |
|
Colchester |
|
|
Glenholme
(NSW001) |
May 15-17 |
|
Murray
Siding (NSW002) |
May 15-17 |
|
Upper
Kemptown (NSW022) |
May 12-17 |
|
Kavanaugh
Mills (NSW023) |
May 15-17 |
|
Debert
(NSW036) |
May 15-17 |
|
Belmont
(NSW037) |
May 15-17 |
|
Staples
Brook (NSW038) |
May 15-17 |
|
|
|
|
Cumberland |
|
|
Wyvern
(NSW003) |
May 15-17 |
|
Oxford
(NSW005) |
May 15-17 |
|
Halfway
River (NSW039) |
May 15-17 |
|
|
|
|
Pictou |
|
|
Blue
Mountain (NSW017) |
May 14-17 |
|
Sunny Brae
(NSW018) |
May 14-17 |
|
New
Gairloch (NSW019) |
May 14-17 |
|
Keble
(NSW020) |
May 15-17 |
|
Four Mile
Brook (NSW021) |
May 14-17 |
|
College
Grant (NSW040) |
May 15-17 |
|
|
|
*Weather source: weather stations in wild blueberry fields (http://www.novascotiawildblueberryblog.com/p/weather.html)