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
Bicycle tree As of February 2013, some 85 systems of this manufacturer and type in use can hold 17,323 bicycles, all in Japan. Bicycle tree A bicycle tree or "cycle tree" or "bike tree" is a bicycle parking system that resembles a tree in shape. There are a few types that have been developed. Some are manual, some use mechanical means to move the bike, assisting the bike by raising into a particular spot, they can handle between 5-20 bicycles depending on size. They are made by various companies in Europe and North America. Still others, like the one made by JFE