Christmas tree pests and weeds of different pests, most of which cause cosmetic damage to the trees, important in the Christmas tree industry. The balsam woolly adelgid ("Adelges picae") are small soft-bodied insects which attack the Fraser fir. The insects appear as white, woolly spots on the tree and are fatal to the fir if left untreated. The woolly adeligid was native to central Europe where it affected the silver fir; it was introduced to the United States, where it has no known native predators, before 1900. Balsam twig aphids ("Mindarus abietnus") are another type of tree pest which affects fir and spruce trees in
Fraser Valley Trade and Exhibition Centre Fraser Valley Trade and Exhibition Centre The Fraser Valley Trade and Exhibition Centre or TRADEX is the second largest facility of its kind in Abbotsford, British Columbia. It is operated by the Tourism Abbotsford Society and hosts around 90 events every year. These events are run by independent companies or people (aka. Show Managers) who are subject to TRADEX policies and procedures. The events vary in type and include consumer shows, trade shows, banquets, agricultural shows, special events, meetings, sporting events, outdoor events, weddings, product launches, film shoots, and ride and drives. The building has an H-shaped layout of two