Japanese beetles are in flight! WHAT and WHEN to spray.

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Japanese beetle (Popillia japonica) adults were spotted flying on June 29 (2018) in Ontario!

The Japanese beetle season is upon us once again!  Adults were spotted this week in Southern Ontario.

Shipping outside Ontario or need to meet the requirements of the JB Certification Program? Not sure what’s required?

This post contains a treatment “decision tree” and a JB product “cheat sheet” to help growers of greenhouse ornamentals.

Continue reading “Japanese beetles are in flight! WHAT and WHEN to spray.”

The New Era of Pesticides in Canada: Cancellations, Re-evaluations, and New Products

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Changes will soon be coming to some of the chemical products you rely on most.

It seems  there is never a dull moment in the greenhouse ornamental industry these days.  From transitions to new crops,  new export requirements, to novel pest problems, the industry has seen a lot of change….and it’s not over yet. 

The industry is also going to be facing changes regarding some commonly used chemical products. Here is the latest on potential  revisions to the list of chemical tools we have access to in Canadian floriculture.

This is guest post was written by Cary Gates, Pest Management Director at Flowers Canada Growers.

Continue reading “The New Era of Pesticides in Canada: Cancellations, Re-evaluations, and New Products”

Accessing Info on GH Floriculture Pesticides Quickly and Easily

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An snapshot of Health Canada’s new Pesticide Labels App for Droid or Apple phones.

Ever needed just to quickly look up a rate for a particular pesticide, or see if it’s compatible with your bio program, only to get lost on Google or get frustrated by the numerous tables in Pub 370?  Well, me too.

Read on for resources to make accessing pesticide information quicker and easier for Ontario’s floriculture sector.

These include a new mobile app for ALL registered pesticides, as well as a downloadable spreadsheet you can tailor to your needs.

Continue reading “Accessing Info on GH Floriculture Pesticides Quickly and Easily”

Two new fungicide registrations!

That’s right!  As of today, flower growers have 2 new weapons against fungal diseases at their disposal. Heritage MAXX (azoxystrobin) and Medallion (fludioxonil) are now registered for use in outdoor and greenhouse ornamentals.

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Impatiens showing signs of nutritional deficiency due to Pythium root rot infection.  Heritage MAXX is now available for Pythium control in greenhouse ornamentals.

Heritage (a Group 11 fungicide) is a systemic fungicide, and is appropriate for control of Pythium, Grey mould (aka Botrytis blight) and Rhizoctonia.  It can also be used for foliar diseases such as Powdery Mildew, Downy mildew, Rust, Anthracnose and Alternaria  Leaf Spots.  You can find the new label here: HeritageLABEL2016.

Medallion (a Group 12 fungicide) is a contact fungicide, and is appropriate for control of root rots such as Fusarium, Rhizoctonia, and Black Root Rot (Thielaviopsis) when applied as a drench.  It can be applied foliarly for Grey Mould, Anthracnose Leaf Spot and Rhizoctonia Stem Rot.  MedallionLABEL2016.

Alternaria on impatiens

Medallion fungicide is now available to Canadian ornamental growers to help control diseases like Alternaria leaf spot (shown here on impatiens).

Both are broad-spectrum fungicides that can be used curatively or prophylactically.

As with any chemical control product, make sure to read and follow the label carefully prior to use.

(Also, 1000 points each to the team that helped push these label expansions forward:Cary Gates, Flowers Canada; Jim Chaput, OMAFRA; Jennifer Llewellyn, OMAFRA and Graeme Murphy, formerly of OMAFRA).

Guide to Weed Control in Ontario

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Publication 75 covers herbicides for outdoor ornamentals and non-crop areas outside the greenhouse.

Ontario’s latest Guide to Weed Control is now available as a free PDF from OMAFRA.  Chapter 16 covers weed control in outdoor ornamentals, and includes effectiveness ratings for registered products.  This publication may also be useful for cleaning up weeds outside the greenhouse.

Note that the only herbicides currently registered for use INSIDE the greenhouse are EcoClear and Munger.  Both are acetic acid-based products appropriate for the control of broadleaf and grass weeds.

A hardcopy of the guide (Publication 75) can be ordered from OMAFRA here for a nominal fee.

Update on Met52 Availability – EC but no Granular from Plant Products

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Met52 EC is available from Plant Products.

In anticipation of Monstanto BioAg’s decision regarding re-sourcing Met52, Canadian distributor Plant Products stocked their shelves.

Plant Products currently holds over 1000 units of the popular Met 52 EC (emulsifiable concentrate) product.  This should be enough to bridge any gap in supply from Monstanto. Met 52 EC has a shelf life of up to 1 year if stored properly.

Met 52 EC is registered for use on strawberries, lettuce, cucumber, zucchini and fruiting vegetables (pepper, tomato, eggplant) in  Canadian greenhouses.

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Granular Met52 is not currently available in Canada.

Unfortunately,  floriculture growers are still without a Metarhizium-based  insecticide for now. Plant Products confirms that Met 52 Granular Insecticide – the only formulation registered on ornamentals – will NOT be available in 2016.  We will update you on any potential availability in the future.

Meanwhile, stakeholders are working with the registrant to explore the possibility that Met52 EC could be registered for greenhouse ornamental use via the minor use program. However, as this previous blog post explains, even label expansions for currently registered products take time. However, biopesticides like Met52 are often expedited.