LUNA PRIVILEGE GREENHOUSE® Fungicide label expanded via Minor Use Program to help manage Botrytis blight and Powdery mildew on Greenhouse and Outdoor Ornamentals and Suppression of Powdery Mildew on Rose in Canada

This post was originally published on the ONnurserycrops blog by Cassie Russell, Nursery and Landscape Specialist for OMAFA.

Commercial ornamental growers now have another tool in the toolbox thanks to the Minor Use Program. LUNA PRIVILEGE GREENHOUSE^® Fungicide label has been expanded to help growers manage powdery mildew and botrytis in greenhouse and outdoor ornamental crops. Continue reading below for an abbreviated outline of the new label.

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Powdery Mildew Being a Pain? Effective Products for PM Relief.

PMRoses4 — Powdery mildew on cut roses in Ontario.

With May’s weather continuing to be up and down, humidity control is a problem in the greenhouse, meaning Powdery Mildew (PM) is too. This pest is rearing it’s ugly head in crops like Kalanchoe and Dahlia.

We won’t cover the basics of PM here: biology, spread and prevention were covered in a previous post. Instead, we’ll focus on monitoring, and which control products to use once you’ve found an infection.

This post was written with help from Plant Pathologist Ann Zemke of the Chase Research Group.

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‘Tis the Season for Powdery Mildew; Here’s what Ontario’s Flower Growers can do .

All through the night while the growers were sleeping, spores of Erysiphe, Leveillula, Microsphaera and Sphaerotheca were teeming.

Caused by one of these many pathogenic fungi, Powdery Mildew is often white and felt-like to the eye.

OMAFRA’s Greenhouse Elves are on the case, giving chemical, biological and cultural controls that curb this pest’s pace.*

*(No need to be worried or terse – the rest of this post won’t be in verse!).

Continue reading “‘Tis the Season for Powdery Mildew; Here’s what Ontario’s Flower Growers can do .” →