Poinsettia are being potted up and pest issues are already popping up! Read on to see what pests growers in Ontario are seeing, and what to do about them.
Continue reading “Poinsettia Pests 2024: Whitefly, Mealybugs and Other Pests”
Category: Whitefly
Poinsettia Pest Management Pointers 2023: Late Production and the Whitefly “Tipping Point”
It’s that time of year again, when problems early in the crop may have caught up with you. This includes root rots, Lewis mite, and Bemisia whitefly.
Now, you’ll be forced to make a choice with your poinsettia crop. Do you stay the course with a biocontrol program? Or spray for pests? And, as always, the question is “spray with WHAT”?
This post has tips on pest management decision making when it comes to common poinsettia problems in October.
Poinsettia Pest Management Pointers: Early Production 2023
Hopefully you’ve read our previous post on pest management in propagation. Now it’s time to cover poinsettia IPM during early production.
This post will cover the first signs of root rots, as well as whitefly and Lewis mite monitoring and management. As healthy plants are better able to defend themselves from pests and diseases, we’ll also give a quick nutrient refresher.
Continue reading “Poinsettia Pest Management Pointers: Early Production 2023”New Tool to Fight Mites and Bemisia Whitefly in Greenhouse Floriculture: Magister SC
As growers are continuously battling new pests, as well as old nemeses, any new tool is a welcome addition in the pesticide toolbox.
The Pest Management Regulatory Agency recently registered an interesting new product: Magister SC (fenazaquin), which is a miticide, insecticide AND a fungicide!
Although registered against powdery mildew in some crops, only the miticide/insecticide use pattern is allowed in greenhouse ornamentals. More information on this product is available below.
Continue reading “New Tool to Fight Mites and Bemisia Whitefly in Greenhouse Floriculture: Magister SC”The Whitefly “Tipping Point”and Testing Pesticides in Poinsettia
It’s that time of year again where you have to make a choice with your poinsettia. Do you stay the course with natural enemies, or abandon your bio program and spray for whitefly? And spray with WHAT?
This post has tips on how to test pesticides NOW, so that when it comes down to the wire, you’ll know what is – and isn’t – working.
Continue reading “The Whitefly “Tipping Point”and Testing Pesticides in Poinsettia”
Comparing Biocontrol to Pesticides for Bemisia Whitefly Control in Poinsettia
T’is poinsettia sticking season once again, and the question always comes down to the same thing: do I use chemicals to control Bemisia whitefly and hope it works this year? Or do I switch to biological control? Here we show some head to head comparisons that can help you decide.
An in-depth discussion of this topic was also captured by MSU’s “Bug Bites” last year, and I’ve included the video below.
Continue reading “Comparing Biocontrol to Pesticides for Bemisia Whitefly Control in Poinsettia”
Poinsettia Problems: Your Monthly Scouting Guide, 2021
When poinsettias get problems, they always seem to hit hard and fast. Things like whitefly, Lewis mite, root rots, and nutritional issues can all quickly derail a quality crop. This is why scouting might be more important in this crop than any other.
Here’s a month by month guide on what you should be looking for to prevent small problems from becoming big issues.
Continue reading “Poinsettia Problems: Your Monthly Scouting Guide, 2021”
NEW: Free Online IPM Training for Greenhouse Staff
Need a refresher on specific pests of floriculture, and what to do about them? Want to see how Canada – a world leader in biological control in ornamental crops – does things?
Then the following IPM training videos, made by specialists and consultants in Ontario, are for you!
Keep reading to learn how to access these videos, and the topics they cover.
Continue reading “NEW: Free Online IPM Training for Greenhouse Staff”Can We Reduce Pest Pressure in Floriculture by Adjusting Plant Nutrition?
Producing high-quality ornamentals while decreasing pesticide use requires finding creative ways to reduce pests across your whole production system.
Are you interested in learning more about the role fertilizers and biostimulants can play in plant health — both in terms of plant quality and pest levels?
This upcoming and FREE webinar provides and overview of a current project between the Vineland Research and Innovation Centre, OMAFRA and industry partners on this unique topic.
Continue reading “Can We Reduce Pest Pressure in Floriculture by Adjusting Plant Nutrition?”Poinsettia Problems 2020: The “Tipping Point”and Testing Pesticides
It’s that time of year again where you have to make a choice with your poinsettia. Do you stay the course with natural enemies, or abandon your bio program and spray for whitefly? And spray with WHAT?
This post has tips on how to test pesticides NOW, so that when it comes down to the wire, you’ll know what is – and isn’t – working.
Continue reading “Poinsettia Problems 2020: The “Tipping Point”and Testing Pesticides”