Updates on Ornamental Disease Webinar Series, “Let’s Talk Disease”.

Screen shot of advertisement for the first webinar in the series, featuring John Lea-CoxWe are ecstatic to report that the webinar series “LET’S TALK DISEASE”  hosted by Greenhouse Canada Magazine and OMAFRA has had high interest and participation from growers.

Running from March to late April, this series covers topics from sanitation measures, to the most effective fungicides for persistent pests like powdery mildew.

Keep reading for and UPDATED list of dates and exciting speakers, and how you can view presentations you might have missed

Continue reading “Updates on Ornamental Disease Webinar Series, “Let’s Talk Disease”.”

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Webinar Series on Ornamental Disease Control Starts March 14!

Mar 14 Cultural Controls Webinar ArtRankled by root rots? Mystified by mildews? Bothered by Botrytis? We’re here to help!

Greenhouse Canada Magazine and OMAFRA are proud to be co-hosting a webinar series on ornamental disease control.  Running from March to late April, this series covers topics from sanitation measures you should be adding to your management program, to the most effective fungicides for persistent pests like powdery mildew.

Keep reading for our list of dates and exciting speakers.

Continue reading “Webinar Series on Ornamental Disease Control Starts March 14!”

Powdery Mildew Being a Pain? Effective Products for PM Relief.

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Powdery mildew on cut roses in Ontario.

With May’s weather continuing to be up and down, humidity control is a problem in the greenhouse, meaning Powdery Mildew (PM) is too.  This pest is rearing it’s ugly head in crops like Kalanchoe and Dahlia.

We won’t cover the basics of PM here:  biology, spread and prevention were covered in a previous post.  Instead, we’ll focus on monitoring, and which control products to use once you’ve found an infection.

This post was written with help from Plant Pathologist Ann Zemke of the Chase Research Group.

Continue reading “Powdery Mildew Being a Pain? Effective Products for PM Relief.”

‘Tis the Season for Powdery Mildew; Here’s what Ontario’s Flower Growers can do .

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Powdery mildew on roses.

All through the night while the growers were sleeping, spores of Erysiphe, Leveillula, Microsphaera and Sphaerotheca were teeming.

Caused by one of these many pathogenic fungi, Powdery Mildew is often white and felt-like to the eye.

OMAFRA’s Greenhouse Elves are on the case, giving chemical, biological and cultural controls that curb this pest’s pace.*

*(No need to be worried or terse – the rest of this post won’t be in verse!).

Continue reading “‘Tis the Season for Powdery Mildew; Here’s what Ontario’s Flower Growers can do .”