Category Archives: Climate

4 Ways You May Be Killing Your Predatory Mites, and How to Check!

Note: This is a re-post because it now comes with an awesome new video of how to monitor you mite sachets! Recently, I had an interaction with a grower where their long-standing biocontrol program for thrips suddenly seemed to be … Continue reading

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4 Ways You’re Accidentally Killing Your Predatory Mites!

Note: This is a re-post because it now comes with an awesome new video of how to monitor you mite sachets! Recently, I had an interaction with a grower where their long-standing biocontrol program for thrips suddenly seemed to be … Continue reading

Posted in biological control, Climate, compatibility with pesticides, Predatory mites, Thrips | Tagged , , , | 9 Comments

Low Light and High Humidity: Identifying Oedema

Oedema or edema, also known as intumescence.  This physiological disorder usually appears during periods of low light – from now through the fall, winter and into the spring.  If you’ve noticed salt-like crystals, odd tumour-like growths or water-soaked spots on … Continue reading

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Summer School: Lessons learned from another hot, humid Ontario summer

Happy first day of fall! It was a dry, sweltering summer across Ontario, and I’ve heard from some growers that it was the most challenging summer they could recall in recent memory based on the heat alone.  Oppressive heat and … Continue reading

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Recognizing Cold Injury

The ice storm that passed through Ontario late last week may have disrupted more than just your travel plans.  If your power went out, and your generator didn’t kick on right away your greenhouse might have dipped in temperature overnight, … Continue reading

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