Pine and fir bushes, grown purposely for use as Christmas timber, are susceptible to a wide number of pests, weeds and diseases. Since the late nineties its look in the United Kingdom has elevated, amongst probably the most affected species is Corsican pine and the illness has been a big drawback in Thetford Forest. Though the illness unfold quickly throughout September 2007 Christmas tree growers remained confident that Christmas tree crops could be unaffected. Some particular weeds cause extra serious issues, טלגראס; telegram4israel.net, the bracken fern can increase illness in fir trees, and employee morale and effectivity are decreased when weeds such as poison oak, Canada thistle and wild blackberries infest plantations. Spongy moth infestations in Canada required restrictions and necessities to be placed upon Christmas tree growers with plantations in "spongy moth regulated areas". The restrictions and requirements included ongoing site monitoring, energetic moth eradication by the grower, correct record maintaining, and government directed moth eradication packages.

The final class of Christmas timber, pines, טלגראס כיוונים are generally inclined to insect infestation and injury from the pine root collar weevil (Hylobius radicis), Zimmerman pine moth (Dioryctria zimmermani), pine needle scale, and white pine weevil. Insect infestations in low numbers could be physically picked or knocked off of trees by hand. Lots of the conifer species cultivated face infestations and demise from such pests as the balsam woolly adelgid and other adelgids. The aphids can cause stunted progress in trees with heavy infestations rendering badly broken timber unsellable. Balsam twig aphids (Mindarus abietnus) are one other kind of tree pest which affects fir and spruce timber within the spring. The balsam woolly adelgid (Adelges picae) are small smooth-bodied insects which assault the Fraser fir. By 2002, sudden oak death had been reported along the California coast and the Oregon Coast, and two species of conifer have been identified as hosts of the pathogen, Douglas fir and coast redwood.

Between 2003 and 2005 P. ramorum was detected in Douglas fir, grand fir, white fir and California purple fir on Christmas trees in Santa Clara County. Douglas firs are additionally affected by Phaeocryptopus gaumanni which causes Swiss needle solid. Species of spruce timber face assault from insects such because the white pine weevil (Pissodes strobi), Cooley spruce gall adelgid, and the pine needle scale (Chionaspis pinifoliae). Douglas-firs are weak to the two plant pathogens that cause Rhabdocline needle cast, Rhabdocline pseudotsugae, and Rhabdocline weirii. The conifer species used and cultivated as Christmas trees are vulnerable to dozens of different pests, most of which cause beauty harm to the bushes, vital in the Christmas tree trade. Voles, or meadow mice, can cause harm to conifer plantation seedlings. This may be achieved mechanically, akin to through audio recordings of predator birds played near bushes, or biologically by introducing predators, akin to lady bugs to eat aphids, to the tree nursery.

Other species of adelgids also infest fir bushes, these embrace the pine bark adelgid, the Cooley spruce gall adelgid (Adelges cooleyi), and the japanese spruce gall adelgid (Adelges abietis). Sure species of birds are also thought-about pests, amongst these is the pine grosbeak which feeds on conifer buds. In the U.S. Pacific Northwest, gopher (pocket gopher) injury to conifer seedlings occurs over thousands of acres, inflicting significant financial loss for the region. In 2002 concern within the U.S. Christmas Tree Pest Manual, Michigan State College Extension, United States Division of Agriculture, 1997-1998, Index A Archived 2007-08-09 at the Wayback Machine. Christmas Tree Pest Manual, "Useless Tree and Root Stem Injury", Yellow-bellied Sapsucker, Michigan State University Extension, United States Division of Agriculture, 1997-1998, טלגראס כיוונים Table of Contents Archived 2007-08-09 at the Wayback Machine. Christmas Tree Pest Handbook, Michigan State University Extension, United States Department of Agriculture, 1997-1998, Desk of Contents Archived 2007-08-09 on the Wayback Machine.