Author Archives: Sarah Jandricic, Greenhouse Floriculture IPM Specialist, OMAFRA

Upcoming Workshops: The Value of Doing Your OWN Trials, and Poinsettia IPM.

One thing our industry excels at is having numerous industry experts and growers willing to share and discuss their knowledge. Here’s a profile of some upcoming events relating to Greenhouse IPM you can take advantage of. Advertisements

Posted in Bemisia whitefly, biological control, costs, biological control, IPM tools, News, On Farm Research, Poinsettia, Whitefly | Tagged , , , , | Leave a comment

4 Ways You May Be Killing Your Predatory Mites, and How to Check!

Note: This is a re-post because it now comes with an awesome new video of how to monitor you mite sachets! Recently, I had an interaction with a grower where their long-standing biocontrol program for thrips suddenly seemed to be … Continue reading

Posted in biological control, Climate, compatibility with pesticides, Predatory mites, Thrips | Tagged , , , | Leave a comment

Fainting “Freedom Red”? Wilting “Whitestar”? Potential causes of Poinsettia collapse, solutions, and the importance of testing.

From now until mid-November is when you’ll most likely see plant losses in poinsettia due to severe wilting. These losses can be considerable: anywhere from 2-15% in Niagara operations in past years, with disease pressure seeming especially high this year. Pythium … Continue reading

Posted in biopesticides, diseases, Fungal diseases, Fungicides, Poinsettia, Pythium, Thielaviopsis | Tagged , , , , , | 1 Comment

Attention IPM Scouts: a brief guide to hand lenses.

Ever wonder if you’re using the best hand lens for the job to investigate pests in your greenhouse?  Curious about the pros/cons of different styles?  Then read the following post from our friends at Penn State: http://sites.psu.edu/frost/2017/09/05/a-brief-guide-to-hand-lenses/

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Be part of a conversation that matters: farmer mental health.

Until recently, there wasn’t data about the mental health of Canadian farmers.  Dr. Andria Jones-Bitton and PhD Candidate Briana Hagen of the Ontario Veterinary College are changing that.  Please consider making time to participate in this worthwhile project. Read on … Continue reading

Posted in Government Programs, Industry trends, Resources | Tagged , , | Leave a comment

Thinking ahead: What you can do THIS WEEK to prevent Lewis mite damage in your poinsettias.

2016 turned out to be a bad year for Lewis mite (Eotetranychus lewisi) in poinsettia.  Although it’s too early to say how 2017 is going to go, you should be considering possible preventative measures THIS WEEK for Lewis mite, especially if you … Continue reading

Posted in Bemisia whitefly, Lewis mite, Pest control strategies, Poinsettia, Preventative treatments | Tagged , , , , | 1 Comment

Update on foxglove aphid control: seeking greenhouse collaborators!

Investigating biocontrol options for our industry is always important, given the lack of registered insecticides in this country.   Currently, we are relying heavily on two closely related chemicals –  Beleaf (flonicamid) and Endeavor (pymetrozine) – for control of the … Continue reading

Posted in Aphid control, Aphids, biological control, Foxglove aphid | Tagged , , , , | Leave a comment