This is the second blog post in a series about water sanitation. The goal of this series is to get you reflecting on your own irrigation system before you are faced with a problem. Posts over the next few weeks will focus on identifying problems, interpreting lab tests, on-farm disease monitoring, and water treatment options. These will be good refresher resources, so make sure to bookmark them.
When it comes to talking about disease-related issues in greenhouse crops, one point of confusion is often oven WHICH pathogens CAN be transmitted by water. Some are obvious – we all know Pythium is water-borne. But what about other culprits, like Fusarium or Erwinia? Should you worry about these in your recirculating water?
Read more to find out when to suspect your irrigation water versus other factors when it comes to disease.
With 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.”
This post on poinsettia problems was contributed to by Drs. Chevonne Dayboll and Sarah Jandricic.
Okay, so Poinsettia don’t really get that many problems. But when issues arise, they can hit a crop fast and hard. Whitefly, Lewis mite, root rots, and nutritional issues can all quickly derail a quality crop.
Here’s a month by month guide on what you should be looking for to prevent small problems from becoming big issues.
Continue reading “99 Poinsettia Problems: Your Monthly Scouting Guide”
We 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”.”
Rankled 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!”
Now that poinsettias are safely tucked into their prop trays and the threat of Erwinia (Pectobacterium) is almost over, it’s time to think about other Poinsettia issues.
Root rots, nutritional issues, environmental stress and PGR mistakes can all be costly in this high-value crop. Read on for common pitfalls and how to avoid them.
Continue reading “Poinsettia Prep Refresher”
Wilting of a poinsettia plant on a bench of otherwise healthy plants could be Pythium root rot. But then again, it might not…
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 may be considered the most “likely” culprit in Poinsettia in this area, but this isn’t always the case, and misdiagnosis can mean wasted fungicide applications. Read on for a list of likely suspects and appropriate control measures.
Continue reading “Fainting “Freedom Red”? Wilting “Whitestar”? Potential causes of Poinsettia collapse, solutions, and the importance of testing.”