Reading Time: < 1 minute The Chinook Applied Research Association is bringing in Canada thistle stem mining weevils this fall. Each patch of Canada thistle needs a tray of weevils and there are 100 weevils in a tray. The insects overwinter in soil and leaf litter, emerge in spring to feed on thistles, and then lay eggs. After hatching, the […] Read more
Biological control for Canada thistle on deck
There’s foreign workers in the bug world, too — and they attack weeds
Bringing in weed-attacking pests is a laborious process but it’s often the only option for pastures
Reading Time: 3 minutes There are many ways to control weeds. Rose De Clerck-Floate’s favourite is to reunite them with their longtime enemies from the old country. “All of the weeds here can come from other parts of the world, mostly Europe and some from Asia, and establish here without the organisms that keep them in check in their […] Read more
Tiny warriors get nasty on Canada thistle
Stem gall flies love to feed on — and breed in — the much-loathed and fast-spreading invasive weed
Reading Time: 2 minutes The West Central Forage Association has another biocontrol that can help you win the war against Canada thistle. The proud warriors are called stem gall flies and they’re available for sale. “The gall flies act on a different portion of the Canada thistle than the weevils do,” said Rachael Nay, conservation agriculture and extension program […] Read more
Seeking options for wireworm control
Crop rotation and biological methods are being studied for managing the persistent pest
Reading Time: 4 minutes No available insecticides can kill them and the one that can at least slow them down may be phased out. But biological control may have promise for managing wireworms, says an Agriculture and Agri-Food Canada scientist who has been researching the pest species. “They especially love cereal crops and food crops like carrots and potatoes […] Read more
There’s a reason why stem-mining weevils are the priciest livestock in Alberta
The insects are mowing down Canada thistle across the province, and attracting lots of eager buyers
Reading Time: 2 minutes Tens of thousands of weevils have been pouring into Alberta from Montana — and producers are clamouring for more. “It’s a biological control and it’s been going great,” said Rachael Nay, conservation agriculture extension co-ordinator with the West-Central Forage Association. The association began the project to import stem-mining weevils four years ago as a way […] Read more
Website identifies your insect friends
WGRF works with Prairie Pest Monitoring Network to develop online and social media sites
Reading Time: < 1 minute Not all heroes wear capes. That’s the message behind a new communications campaign to increase awareness of some unsung heroes — beneficial insects. Recently launched by Western Grains Research Foundation (WGRF), the ‘Field Heroes’ campaign encourages growers and agronomists to consider beneficial insects in crop production recommendations and decisions. “Beneficial insects play a vital pest […] Read more
Learn about the good bugs
Reading Time: < 1 minute A March 23 workshop will address how biocontrols can fit into an integrated pest management plan to help in greenhouse growing operations. “Biologicals are huge right now in greenhouse production and we’re seeing people introduce them and monitor them carefully for pests but at the same time aren’t quite sure where to take it from […] Read more
Prevention is the best cure when managing greenhouse pests
Greenhouse crop growers need to start with clean cuttings, prevent infestations, and monitor pest levels to guarantee a successful biocontrol program
Reading Time: 3 minutes For greenhouse crop growers, moving away from chemical pest control to biological controls can be a big investment — but one that’s worth it, if done right. “You have to change your mindset from pesticides to biocontrol,” said Veronica Cervantes, technical adviser at Biobest USA. “The first year you start your biocontrol program is the […] Read more
This poisonous invader is growing in numbers
Reading Time: < 1 minute Introduced from Europe in the 1600s as an ornamental species, common tansy (sometimes called tangee) has been spotted across central Alberta and its numbers have been on the rise in recent years. The weed is particularly threatening in pasture and riparian habitats, but can also be found in disturbed soils and flower beds. Most livestock […] Read more
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