Category Archives: biopesticides

Fainting “Freedom Red”? Wilting “Whitestar”? Potential causes of Poinsettia collapse, solutions, and the importance of testing.

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.  Pythium may be considered the most “likely” culprit in … Continue reading

Posted in biopesticides, diseases, Fungal diseases, Fungicides, Poinsettia, Pythium, Thielaviopsis | Tagged , , , , , | 1 Comment

Managing Million Bells, 2017 Updates

It’s that time of year again, when unrooted cuttings or rooted plug trays of Million Bells (Calibrachoa) are first arriving in the greenhouse.   When they go right, Calibrachoa are a relatively easy, staple spring crop.  However, when million bells go bad, they … Continue reading

Posted in Aphid control, Aphidius wasps, biopesticides, Black root rot, Calibrachoa, Fungicides, fungus gnats, Preventative treatments, Thielaviopsis, Thrips | Tagged , , , | Leave a comment

Webinar Detailing Thrips Control Strategies Now on the Web.

For those of you that missed my webinar on “Thrips Control: from Propagation to Pocketbook”, it is now available for free on the Greenhouse Canada Magazine website.  Keep reading for more details and a link to the talk.

Posted in biological control, biopesticides, BontaniGard, chrysanthemums, costs, biological control, dipping cuttings, IPM tools, Met52 insecticide, On Farm Research, Pest control strategies, sticky tape, Thrips | Tagged , , , , , , | Leave a comment

Ramping up thrips biocontrol BEFORE they get out of control!

Now that the warm weather is finally upon us, it’s time to start worrying about thrips control. What we’ve learned over the years is that pesticides just don’t cut it – the only reliable chemical for western flower thrips in Ontario is … Continue reading

Posted in biological control, biopesticides, chrysanthemums, Microbial products, Natural enemy interactions, Nematodes, Predatory mites, Preventative treatments, Thrips | Tagged , , , , , , , , , , , | 1 Comment

Can you safely mix nematodes and pesticides?

Entomopathogenic nematodes – used to control fungus gnats, shoreflies and thrips – are often a “gateway bio” into biocontrol use in greenhouses.  This is because not only are they effective and easy to use, but they’re generally compatible with insecticide … Continue reading

Posted in biological control, biopesticides, fungus gnats, IPM tools, Met52 insecticide, Natural enemy interactions, Nematodes, pesticides, Thrips | Tagged , , , , , , , | 1 Comment

Update on Met52 Availability – EC but no Granular from Plant Products

In anticipation of Monstanto BioAg’s decision regarding re-sourcing Met52, Canadian distributor Plant Products stocked their shelves. Plant Products currently holds over 1000 units of the popular Met 52 EC (emulsifiable concentrate) product.  This should be enough to bridge any gap in supply from Monstanto. … Continue reading

Posted in biological control, biopesticides, IPM tools, Met52 insecticide, pesticides, Registered pesticides, Thrips, Whitefly | Tagged , , , , , , | Leave a comment