Category Archives: Thielaviopsis

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, with disease pressure seeming especially high this year. Pythium … 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

Managing Million Bells

By Sarah Jandricic and Chevonne Carlow It’s that time of year again, when baskets of Million Bells (Calibrachoa) are going up in the greenhouse.  Here’s how to deal with and prevent some of their most common issues. From a nutritional … Continue reading

Posted in Aphid control, Aphids, Black root rot, Calibrachoa, fungus gnats, iron deficiency, Spring crops, Thielaviopsis | Tagged , , , , , , , , , , , , | 6 Comments