Girl Planting seeds

Pollinating bees may be exposed to lethal levels of insecticides in soil

New research suggests ground-nesting bees may be exposed to lethal levels of pervasive insecticides found in soil on farms across southern Ontario.  University of Guelph environmental sciences professor Nigel Raine and PhD student Susan Chan examined the hoary squash bee that feeds on the nectar and pollen of squash, pumpkin, gourds and melon, and is a crucial pollinator for those crops.  They estimated 36 per cent of the bee population studied encountered lethal doses of one major neonicotinoid -- clothianidin -- in the soil at 18 commercial squash fields in a region stretching from Peterborough, Ont., to the tip of southwestern Ontario.  Read more....



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