Browse 10,100+ pine tree on white background stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Christmas tree ...

Browse 3,500+ spruce branch white background stock illustrations and vector graphics available royalty-free, or start a new search to explore more great stock images and vector art. Set Christmas tree ...

The white pine weevil causes extensive damage to many types of evergreen trees. It is also known as the Engelmann spruce weevil and the Sitka spruce weevil. Adult weevils are about 8 mm (.31 inches) ...

Cones remain on the tree for two years. Eastern white pine trees typically grow to between 65 and 100 feet tall, but can exceed 150 feet tall in old growth forests. This species prefers acidic, moist ...

White pines don't make the best screening evergreens because they're more open in habit than most. However, removing the "leader" and regularly shearing them can encourage more denseness.

European settlers used white pine for boards to build their barns, many of which still stand today. This picturesque tree is also a favourite subject of many Canadian artists, and features prominently ...

Water filter from the sapwood in pine tree branches Date: February 26, 2014 Source: Massachusetts Institute of Technology Summary: If you've run out of drinking water during a lakeside camping ...

In California, Where Trees Are King, One Hardy Pine Has Survived for 4,800 Years In a harsh alpine desert, the Great Basin bristlecone pines abide amid climate change. Among them is the oldest ...

The whitebark pine is one of the few trees that can survive in the cold, wind-swept heights of the Rocky Mountains and other western mountain ranges, clinging to steep slopes for centuries, even in ...

When 51 percent or more of the leaves are removed from the tree, it is considered heavy defoliation. Most deciduous trees can withstand one year of severe defoliation and will produce auxiliary ...

Meet the eastern white pine or Pinus strobus, the only five-needled pine native to Indiana. Each bundle of needles or fascicle, has five needles, which are typically between two and four inches long ...