1st Monilinia Update for Nova Scotia 2018

Tuesday, April 24, 2018

It is has been a very strange winter and spring, with variable snow cover and warmer than normal temperatures through January and February. March and April have been quite cool, but in most areas the ground has been free of frost for some time.

Plant development is going to be very variable this year depending on snow cover, so it is very important to take a look at your fields to see how the fields are developing.

That being said we are starting to see buds swelling and some F2 buds are appearing.


I have a report from south west Nova Scotia - we are seeing buds swelling but very few floral buds at the F2 stage were noted.

I looked at an early field in the Debert area today, I noted that 5% of the Fruit buds were at the F2 stage.

If you have early fields and haven`t had snow cover for sometime, monitoring should begin this week.

Remember, it does not make sense to treat for Monilinia before 40% of the floral buds have reached the F2 stage.  After that point you only need to treat if there is an infection period. Infection periods are a combination of wetness duration and temperature.  The warmer the temperature, the shorter the wet period needs to be to cause an infection period.


Note:  All growers should check with their processors or buyers to see what products are allowable for their markets.  Propiconazole based products (Topas, Tilt, Jade, Bumper, Pivot etc.) have been a standard treatment for quite a long time.  There are some issues with continued mrls in Europe with this active ingredient, so some processors want to avoid using it this year as it could affect sales to Europe. Again check with your processor!!

There are other products available for use check, the update pest management guide http://www.perennia.ca/wp-content/uploads/2015/08/Wild-Blueberry-Pest-Guide-2018.pdf

Most of these products do need to be applied before an infection occurs.  Proline may have some post infection control but growers should be very cautious of pushing this back-action too far. As we move into May and there is a significant infection period forecasted and fruit bud development is well advanced, a pre-infection application might be well advised.

The second update will be late in the afternoon on Friday, April 27th.



2018 Wild Blueberry Pest Management Guide and Pesticide Charts

Friday, April 20, 2018

As we approach the growing season, I have updated Perennia's Pest Management Guide and three Pesticide Charts.  Click here to find the documents Pesticide Guide and Charts

As always check with your processor or buyer to see what is allowable for their markets. We sell our berries in a global market and allowable products in other countries can change from season to season.

Stay tuned next week for the first Monilinia update!

Spring getting close??

Tuesday, April 17, 2018

This time last year, we were seeing some fruit buds starting to open in Southwest Nova Scotia.  Things aren't quite that advanced this year. However, moisture and warmer temperatures could lead to rapid development over the next couple of weeks.  Some higher elevation fields still do have some snow cover, but farmers should begin thinking about looking at their fields due to be harvested this year for bud development and potential winter damage. I expect by the end of next week, traditionally early developing fields will have some fruit buds swelling and starting to open.

I will begin the blight line next Tuesday (April 24th) late in the afternoon.

The phone line is 902-662-4242 or check back here for twice weekly updates.

2018 growing season fast approaching

Sunday, March 18, 2018

Well it's been a while since I've made a post, but the start of the season is closer than many of us want to think. 

Next Saturday, March 24th, is the WBPANS winter meeting in Truro.  I will be giving a talk on Triaging Wild blueberry fields.  It will be a discussion on things to considered when deciding what to do with some of your more marginal fields.  I have also written a factsheet that goes along with that talk.  http://www.perennia.ca/wp-content/uploads/2015/08/Triaging-WBB-Fields.pdf

Also, I did a demo trial, looking at canopy penetration of using different spray nozzles, spray volumes and boom heights.  I will have the factsheet at the winter meeting but it is also on-line to look at. http://www.perennia.ca/wp-content/uploads/2015/08/Spray-coverage-demo-in-WBB.pdf

Essentially, the higher the boom, the less canopy penetration you get and the less consistent coverage you get in general.  Something to consider when setting up your sprayers for this season.

Hope to see everyone on Saturday.

SWD update

Sunday, August 27, 2017

We are seeing SWD, at several locations throughout NS in wild blueberry fields.

Populations are still quite low (1 -2 flies per trap) and if harvest can be finished in the next week or so risk of a major outbreak is low.

Fields that will be harvested towards the end of the first week of September should be monitored closely and treated as directed by your buyer.

Harvest underway and SWD

Monday, August 14, 2017

Many have started harvest, but it's still pretty early to tell how fields are coming off.

Of note: We are starting to see a scattering of positive SWD adult captures in Northern NS.  The numbers are very low and typically found in field borders close to wild raspberry and other brambles.

If growers are trapping they should be checking the traps every few days, particularly on fields that won't be picked for a couple of weeks.

If you do start to see increasing numbers check the following link for allowable products. http://www.perennia.ca/wp-content/uploads/2015/08/SWD-Factsheet-emergency-reg-July-2017.pdf

Remember!! be very cautious of pre-harvest intervals and check with your buyer for what products work for their markets.

I will update the blog if the numbers start to increase.

SWD trapping, Blueberry Fruit fly and other annoying pests

Wednesday, July 19, 2017

For those who didn't make the field day on the weekend, Dr. Deb Moreau gave an update on SWD trap captures in western NS and the Annapolis valley.  She is seeing some captures in hedgerows around many different berry crops and has begun taking berry samples to see if egg laying has begun.

This is quite early for our region and is a bit concerning for wild blueberry.  We should begin trapping for swd in wild blueberry http://www.perennia.ca/wp-content/uploads/2015/08/Monitoring-for-Spotted-Wing-Drosophila.pdf (click on link for info)

As of yet we have not seen SWD in Northern NS, where most of the wild blueberry is located.  Wild blueberries are not the preferred host of swd, but they can and will use the fruit.  I will be monitoring in several sites and will update if we get any captures.

In the meantime, controlling for Blueberry Fruit fly should be done soon if you have populations in your fields.  Imidan will work well on fruit fly and low levels of swd, if they are there.