In recent years, the varroa mite (Varroa destructor) has become the most widespread and devastating pest of Western honey bees (Apis mellifera), and has even been attributed to Colony Collapse Disorder (CDC). The varroa has two stages; one, in which it acts as a parasite to adult worker bees, and another where it reproduces and... Continue Reading →


Poinsettia Pests: The Lewis Mite

While many poinsettia growers come to expect pests like whiteflies and fungus gnats in their greenhouses, most are not on the lookout for mites. However, the Lewis mite (Eotetranychus lewisi) has begun to crop up around poinsettia operations in recent years, and can develop a major infestation before detection. Because this is a relatively uncommon... Continue Reading →

Thrips Control: “It’s Complicated”

Thrips are one of the most challenging pests to control with beneficial insects. However, with the right tools and programs, they can be managed.  Thrips feed on flowers, leaves, twigs or buds by piercing into the cell and sucking out the contents. According to the University of Minnesota, this causes structural abnormalities (distortion, dwarfing, matting),... Continue Reading →

Leave a Light On

If you are using Aphidoletes aphidimyza (“Aphidoletes”) in the late fall and winter months, you may have noticed that some of the predators will begin to diapause. While some growers try to stay away from releasing the predatory midge during those cold, dark months; the days of hibernation are over! You can now keep your... Continue Reading →

Out With the Old, In With the New!

As the new growing season fast approaches, many of you are beginning to clean out your greenhouses to rid yourselves of pests, fungus and bacteria. We talked to Brian Spencer at Applied-Bionomics Ltd. to get some tips that may be crucial for your Integrated Pest Management (IPM) program. The first thing you should look at... Continue Reading →

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