Oh dear! It’s Oedema.

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Oedema on the young leaves in this begonia basket.

Oedema, that physiological disorder that appears during periods of low light and high humidity.  There’s been quite a bit of it reported in Ontario greenhouses this spring, and unfortunately it’s related to the long rainy (or snowy!) spring we’ve been having.  If you’ve noticed salt-like crystals, odd tumour-like growths or water-soaked spots on either side of your plant leaves this disorder might be the culprit.

The disorder affects a wide variety of greenhouse ornamentals.  It’s usually noticed in spring crops like sweet potato vine (ipomea), geranium, begonia and/or petunia. Continue reading “Oh dear! It’s Oedema.”

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New Program Alert: GreenON Agriculture

GreenON Ag retrofit logoYou might have heard that a new cost-share program, GreenON Agriculture was announced last week.  This program is designed to help Ontario farm businesses reduce their carbon footprint, and greenhouses are eligible!

This program will be of interest to greenhouse operators who are concerned about rising energy costs, and want to make their operations more energy-efficient.

Continue reading “New Program Alert: GreenON Agriculture”

Upcoming Webinars: Plant Growth Regulators and Photoperiodic Responses

learning(1)Our floriculture research friends over at e-GRO are hosting a few webinars in the next few weeks that might be of interest to you or your staff. Take a look at the details below, and follow the links to register if you’re interested! Continue reading “Upcoming Webinars: Plant Growth Regulators and Photoperiodic Responses”

Participate in Developing an Irrigation Strategy for Niagara

The summer of 2016 was unusually dry across much of the Niagara Region. Prolonged dry conditions highlighted the need for access to irrigation water and the consequences of inadequate irrigation on crop production.

A number of grower organizations, working together with Niagara Region, were approved for a Growing Forward 2 grant to develop an Irrigation Strategy Action Plan for Niagara. The focus of this work is on farmland used for horticultural production, including grapes, tender fruit, nursery and greenhouse production, below the escarpment. The work is important for the future of your farm and your neighbours. Continue reading “Participate in Developing an Irrigation Strategy for Niagara”

Upcoming Webinar: GO-CALC – Modelling Energy Use and Savings in the Greenhouse

Now that the mums are gone, and the poinsettias are getting ready to colour up, it’s becoming clear that winter is just around the corner.  With the colder temperatures outside, comes the ramping up of you heating system. Remember those energy bills from winter’s gone by? Have they got you thinking about doing some energy-efficient upgrades in your greenhouse?

The engineers at OMAFRA have been especially busy this year building GO-CALC – a tool to help estimate your energy use in the greenhouse AND how retrofits can help to make your greenhouse more energy-efficient!  The tool shows how those energy-efficient upgrades like energy curtains, new greenhouse coverings and boiler upgrades that you may already be planning for your greenhouse can help you save energy.

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Continue reading “Upcoming Webinar: GO-CALC – Modelling Energy Use and Savings in the Greenhouse”

Considerations for fine-tuning your fertilizer program

How do you typically fertilize floriculture crops in your greenhouse?  Based on how the plant performs? Maybe based on recommendations from your consultant or supplier?  Do you do it the way it’s always been done?  Do you know why it was always done that way? Continue reading “Considerations for fine-tuning your fertilizer program”

Demonstration Day – Best Management Practices for Outdoor Mum and Hydrangea Growers

Calling all outdoor chrysanthemum and hydrangea growers! Do you currently produce these crops outdoors during the summer months?  Would you like to learn more about how adjusting your fertilizer program could potentially lead to savings while maintaining the quality of the crop? How about learning about how to best manage your water and fertilizer program in an outdoor setting? Continue reading “Demonstration Day – Best Management Practices for Outdoor Mum and Hydrangea Growers”