A new pesticide is available for greenhouse ornamental production in Canada that has shown potential for effective suppression of difficult-to-control thrips and whitefly species.
But to keep this new tool effective, growers will have to use this chemical wisely. Keep reading for efficacy data on ornamental crops and best management practices for incorporating this chemical into your IPM toolbox.
Whitefly – especially Bemisa whitefly – are STILL one of the hardest insects to control with pesticides in the greenhouse industry,
Efficacy trials are key to keeping growers informed about which chemicals currently work and which don’t for Bemisia whitefly.
Entomologists at the University of Maryland and Delaware recently did such a study, and included newer pesticide registrations. If you missed the article in the July issue of Grower Talks magazine, keep reading for the link to their results and a Canadian take on the study.
Japanese Beetle (Popillia japonica) adults are starting to take flight in southern Ontario. They have been spotted in Hamilton and Niagara this week. Read on for an updated post on WHAT and WHEN to spray for JB to meet certification requirements if you ship product outside Ontario.
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 atFlowers Canada Growers.
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.
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.
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 asystemic 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.
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).