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Olds College instructor presents eco-friendly ways to manage bothersome insects BY RENEE FRANCOEUR ADVOCATE STAFF Photo by RENEE FRANCOUER/Advocate staff
Ken Fry, an entomology instructor in the school of Horticulture at Olds College, studies a lily plant in the campus gardens. Fry has largely been working with the Chinese lily beetle, which was first detected in Western Canada in Airdrie in 2004.
The fire red lily beetle. The cereal leaf beetle. All types of aphids. Mosquitoes. Many set out to annihilate these little pests and invasive species. But there’s a greener and more eco-friendly way to manage them, notes Ken Fry, an entomology instructor in the School of Environment at Olds College. It’s called taking biological control measures and Fry hopes to see more of it in the future. And not just more commercial enterprises and municipalities getting on board, he said, but also everyday gardeners and family farmers. Biological control is a pest management method that consists of introducing live organisms, whether predatory or parasitic, to interact with and reduce pest populations. The overall goal isn’t to eliminate the pests. “Biological control allows nature to manage itself,” said Fry. “It’s about trying to re-establish the balance in the ecosystem after a species has been introduced to a new environment, which happens a lot through international travel, global trade, etc.” When alien species, such as the multicoloured Asian lady beetle (native to eastern Asia), come to North America it’s like “kids whose parents have gone away and they have the house to themselves so they can run amok,” said Fry. They’re suddenly free from their native predators, parasitoids and diseases and all sorts of competition and pressure that kept them in check, he said. Fry gave the example of the cereal leaf beetle, which has recently exploded in Alberta after migrating from south of the border. This pest feasts on wheat, oat and other cereal crops, as well as various grasses. Canadian researchers have been on the problem and have now found a parasitoid, a type of wasp, from the beetle’s native range, said Fry.
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$30M CLASS-ACTION SUIT FILED
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A shopping mall roof collapse that killed two women and wiped out a large portion of the local commerce in Elliot Lake has sparked a $30-million lawsuit. A4
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