Christmas tree pests and weeds required restrictions and requirements to be placed upon Christmas tree growers with plantations in "gypsy moth regulated areas". The restrictions and requirements included ongoing site monitoring, active moth eradication by the grower, accurate record keeping, and government directed moth eradication programs. Failure to abide by the rules could result in revocation of the "approved grower" status from the Canadian Food Inspection Agency. The major types of conifers cultivated, pines, Douglas-firs, true firs, and spruce trees, are all affected by some types of insect pests. Douglas-firs are most vulnerable to the Cooley spruce gall adelgid. The true firs are most susceptible
Steamboats of the Lower Fraser River and Harrison Lake draft steamer. A Hudson's Bay fort at Fort Langley, sat some inland from tidewater. Regular steamer service ran on the Fraser River as far as Yale and also shortly afterwards via the Harrison River up to the head of Harrison Lake, where a townsite named Port Douglas became the port of disembarkation for the Douglas Road, also known as the Lakes Route or Lillooet Trail, which ran via a series of lakes and wagon-road portages to Cayoosh Flat, the other major boomtown of the early gold rush alongside Yale and Port Douglas. One Cariboo Gold Rush diarist noted In 1881