Talk to the world’s leading greenhouse IPM researchers on June 7th!

Have pressing pest management questions you can’t get answered?  Looking to see what new strategies are coming down the IPM pipeline?   Then come to the Grower Session of the IOBC Canada 2017 meeting and network with world leaders in the field of Greenhouse IPM.   It’s only the second time this event has been held in Canada so this opportunity may be once in a lifetime.  Only $25 to register (due May 30th).  Read on for the details. Continue reading

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Lassoing Loopers: why you NEED to care about caterpillar control

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Know which looper species this is? Are you SURE? If not, keep reading, as some species could get your shipments detained at the border.  Photo: Steve Hatch, Bugwood.org.

With spring crops behind us and summer approaching, most of you are probably concentrating on the Big 3: thrips, aphids and whitefly.  But recent alerts put out by the United States Department of Agriculture (USDA), bring a new emphasis to caterpillar control.  Read on to understand what’s happening, how to control occasional pests like cabbage looper, and avoid potential issues at the border.

 

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Botrytis Bumming You Out?

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Botrytis spots on Primula petals.

With the intense period of rain we just had, and with MORE rain coming on Friday, it’s time to think about Botrytis control and prevention.  One of the most common and destructive diseases of greenhouse crops, outbreaks usually follow periods of cool, damp, cloudy weather.  Unfortunately, I can’t order up more sun for you, but I CAN suggest some management tactics.

 

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Posted in Botrytis, diseases, Fungal diseases, Fungicides, Greenhouse Environment, Sanitation, Ventilation | Tagged , , , , , | Leave a comment

A Reminder about Fertilizer Injector Maintenance

Spring is here, and we know you’re busy!  Here’s a quick but very important refresher on fertilizer injector maintenance.  Ensure they’re working properly on a regular basis to avoid extra headaches.

How do I know if my injector is working properly?

Hopefully damage to foliage wasn’t your first sign things were a little off! Some things to remember:

  • The dilution ratio needed for each application should be known and adjusted as needed.
  • Remember that tracing dye in water-soluble fertilizers should never be used as an indicator of the actual strength of a fertilizer mixture.
  • If you are using multiple products or chemistries ensure they are compatible for tank mixing before running them through the injector.
  • If deviations greater than 5% from the expected setting occur, contact an irrigation specialist for assistance or repair. (But first, double check that math!)

Fertilizer injectors come in all shapes and sizes in the greenhouse.

There are two common methods to check if your injector is working as expected. Regular calibration is needed to ensure that an injector is operating properly. You should complete both methods listed here to ensure accuracy. Continue reading

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New tool can help identify gaps in your pest management program

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Do you have a strategy to help mitigate pests coming into your facility, like dipping cuttings upon receipt?

The CFIA has recently released the Floriculture Sector Biosecurity Guide.  Despite it’s imposing name, this is an excellent “road map” to help protect your facility from unwanted pests.  The Guide offers biosecurity strategies from the time plants come in the front door ’till they’re out in the compost bin.

Don’t have a facility-wide Pest Management Program in place?  This guide can provide the framework. (Why start from scratch?).  Already have a strategy to mitigate risks from pests at your farm?  Compare YOUR plan with the Floriculture Guide to see if you’ve overlooked anything.

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Posted in Biosecurity, IPM tools, Online resources, Pest control strategies, Plant production, Resources | Tagged , , , , | Leave a comment

Participate in the Greenhouse Innovations Tweet Chat – Tuesday April 11th!

Do you use twitter? Agriculture and Agri-Food Canada is planning a Greenhouse Innovations Tweet Chat on Tuesday, April 11 from 2pm – 3pm EDT.  This event is one of five Science Social Media Takeover Days planned throughout the year.  The Tweet Chat is designed to engage research staff, greenhouse growers and greenhouse industry stakeholders, and the general public about Greenhouse Innovation and Vertical Farming.

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Using Beleaf (flonicamid) as a drench: benefits and (potential) drawbacks.

gi_0_beleafGiven that it’s the season for pest problems like aphids on spring crops, I’d like to remind everyone of an important new pest management tool we have at our disposal.

Thanks to the hard work of Cary Gates at Flowers Canada Growers, and OMAFRA’s Jim Chaput, Beleaf (flonicamid) can now be used as a drench on greenhouse-grown ornamentals and cut flowers.

Read on for more details regarding the expanded label and potential phytoxicity issues.

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Posted in Aphid control, Calibrachoa, Flowers Canada, pesticides, Spring crops | Tagged , , , , , | Leave a comment