Home Business China says customs found 'hazardous pests' in Canadian canola import samples Business China says customs found 'hazardous pests' in Canadian canola import samples By Genpie - March 6, 2019 247 0 Facebook Twitter Google+ Pinterest WhatsApp China’s foreign ministry said on Wednesday that the country’s customs officials had frequently discovered what were described as “hazardous pests” in samples taken recently from Canadian canola imports.