The BC Ministry of Agriculture is asking the public to not move apples grown in backyards (non-commercial fruit) in coastal BC into BC’s interior, in particular please don’t move non-commercial fruit into the Okanagan or other major tree fruit producing area of BC. Apple maggot is a serious pest of apple that is not yet established in the main apple producing areas of British Columbia. This page provides information on prevention, identification and management of apple maggot in commercial apple orchards.
Factsheet for commercial and non-commercial growers in BC: http://www2.gov.bc.ca/gov/content/industry/agriculture-seafood/animals-and-crops/plant-health/insects-and-plant-diseases/tree-fruits/apple-maggot
Factsheet for backyard apple growers from Washington State: http://cru.cahe.wsu.edu/CEPublications/eb1928/EB1928.pdf