Tropical Thrips Species Intercepted on Plant Material in Ontario: Be Aware – But Don’t Panic.

This post was co-written by A. Summerfield (Vineland Research and Innovation Centre) and S. Jandricic.

Figure 1. Thrips parvispinus is generally dark coloured (though the head and thorax can be lighter than the abdomen), has bright red ocelli and clear patches at the top of its wings.

Increases in global trade, along with decreased use of harsher broad-spectrum pesticides makes it easier for insect species to move around the world. Because of this, it is becoming more common to find unusual pests coming in on plant material. It’s important that we are prepared and know what to do when something like a new thrips species makes an appearance.

The tropical thrips species Thrips parvispinus has been popping up in various parts of the globe in recent years and was intercepted on plant material in two Ontario greenhouses in 2021/2022. Read on to learn what we know about this species and what you should do if you suspect you have them.

Continue reading “Tropical Thrips Species Intercepted on Plant Material in Ontario: Be Aware – But Don’t Panic.”

Poinsettia Pest Management Pointers: Receipt Through Potting Up.

Poinsettias are almost here! Instead of covering the whole crop cycle, this year we’re breaking posts down into 4 key growing periods: Receipt/Propagation, Early Production, Late Production, and Finishing.

This post on propagation will cover things you can do now to treat pests and diseases in your cuttings to prevent BIG problems later. And make sure to check out Dr. Chevonne Dayboll’s post from last week, on ensuring cutting quality.

Continue reading “Poinsettia Pest Management Pointers: Receipt Through Potting Up.”

Garden Mums – 2021 Production and Protection Tips

praying mantis on garden mums

This post was contributed to by Drs. Sarah Jandricic, Andrew C. Wylie and Chevonne Dayboll.

Summer is getting underway, and so too are garden mums!  Although generally an easy crop, there several tweaks you can make to help save headaches AND money.

This post has updated information to help you optimize your irrigation, fertilizer and pest management programs in garden mums.

New Resources for Mum Production

Hit your exact ship size on your ship date using Graphical Tracking

Track and even out the growth of your mums using a graphical tracking tool with a few easy steps:

Continue reading “Garden Mums – 2021 Production and Protection Tips”

Preventing Issues in Your Spring Crops: Sanitation, Dips and Bio Tips.

P1010595With the holiday season almost upon us, it’s time to turn our attention to Spring bedding crops. Although here for a brief window, the diversity of these crops means you’re bound to encounter some sort of disease and insect problems.

One way you can head off issues is to plan and prepare now.  This post from January 2020 has important tips on sanitation for common spring crop diseases, dips and early sprays to prevent key pests, as well as tips on where to spend your biocontrol dollars.

Continue reading “Preventing Issues in Your Spring Crops: Sanitation, Dips and Bio Tips.”

Dipping Poinsettia Cuttings to Reduce Whitefly 101: 2020 Edition

 

dipping cuttings
Dipping poinsettia cuttings to help lower Bemisia numbers was investigated and perfected by the Biocontrol Lab at the Vineland Research and Innovation Centre in Ontario.

Although we’ve been talking for years here in Canada about dipping your poinsettia cuttings in low-risk pesticides, some growers have yet to take the plunge.

This preventive technique improves efficacy of BOTH biocontrol and pesticide programs for Bemisia, since it lowers your starting pest pressure.

If you’re still unsure of how or when to apply cutting dips, check out the rest of this post.  

 

Continue reading “Dipping Poinsettia Cuttings to Reduce Whitefly 101: 2020 Edition”

Garden Mums – 2020 Production and Protection Tips

praying mantis on garden mumsThis post was contributed to by Drs. Sarah Jandricic and Chevonne Dayboll.

Summer is in full swing, and so too are garden mums!  Although generally an easy crop, there several tweaks you can make to help save headaches AND money.

This post has information to help you optimize your irrigation, fertilizer and pest management programs in garden mums.

Continue reading “Garden Mums – 2020 Production and Protection Tips”

Preventing Issues in Your Spring Crops: Sanitation, Dips and Bio Tips.

P1010595With the holiday season over, it’s time to turn our attention to Spring bedding crops. Although here for a brief window, the diversity of these crops means you’re bound to encounter some sort of disease and insect problems.

One way you can head off issues is to plan and prepare now.  This post has important tips on sanitation for common spring crop diseases, dips and early sprays to prevent key pests, as well as tips on where to spend your biocontrol dollars.

Continue reading “Preventing Issues in Your Spring Crops: Sanitation, Dips and Bio Tips.”

2019 Poinsettia Open House: Jordan, ON

poinsettia trials _pinks 2Once again, Focus Greenhouse Management and Jeffery’s Greenhouse are partnering to bring us the 2019 Poinsettia Open House!

There will be presentations on pest management in poinsettia, troubleshooting production issues as well as plant growth regular trials.  And, as always, there will be lots and lots of poinsettia varieties to look at!

Read on for more details including speakers and sales reps that will be present.

Continue reading “2019 Poinsettia Open House: Jordan, ON”

Now’s the Time for Whitefly Prevention: Registered Products for Poinsettia Dips

OLYMPUS DIGITAL CAMERAHere in Canada, we’ve been talking for years about research on the highly effective method of dipping your poinsettia cuttings in low-risk pesticides to reduce starting whitefly populations

Thanks to Dr. Rose Buitenhuis (VRIC), Cary Gates (FCO) and BioWorks, the label for BotaniGard WP has now officially been expanded to include dip applications.  This now adds to our arsenal (see below for more dip products).

Read on for the current BotaniGard label and how dipping can help improve your Bemisia whitefly program this year, whether you’re using pesticides or biocontrol.

Continue reading “Now’s the Time for Whitefly Prevention: Registered Products for Poinsettia Dips”

Worried About Whitefly? Control Strategies in Poinsettia for 2018.

Bemisia 4_SJ.JPG
Bemisia whitefly (Bemisia tabaca) adults on poinsettia.  In high pressure years, poinsettia plants can quickly become unsellable due to this pest.

The floriculture industry in Ontario seems to have mostly avoided heavy aphid AND thrips pressure this spring/summer.  But from everything I’ve been hearing, we are NOT going to be that lucky with whitefly on poinsettia this year.

 

This  post goes over preventative measures that should be taken as soon as cuttings come in the door, biocontrol programs for whitefly on poinsettia, and WHEN and WHAT to spray for this so you can avoid resistance issues.

Continue reading “Worried About Whitefly? Control Strategies in Poinsettia for 2018.”