“Evergreens shed their older needles to make room for new growth, but what makes these plants evergreen is that they retain some foliage all year long instead of shedding all of the leaves at once.” ...

There are many coniferous trees that have single needles directly and singly attached to the twig. These attachments can be in the form of wooden "pegs" (spruce), can be in the form of "direct ...

Rhizosphaera needle cast is a fungal disease, caused by Rhizosphaera kalkhoffii that attacks the needles of Colorado blue spruce in the spring, as new needles emerge. However, infected needles often ...

The cones are cylindrical and upright and the shape is very narrow with rigid, upright, or horizontal branching as opposed to "drooping" branches on some spruce trees. Fir tree needles are soft ...

In spruces and firs, each needle attaches to the branch separately. So how to you tell a spruce from a fir? Spruce needles are square in cross-section and easy to roll between your fingers.

Q. Two of my dwarf Alberta spruce has a problem that causes the needles to turn brown and fall off. I have tried insecticide and fungicide to control the problem. One of the trees looked much ...

Evergreen trees and shrubs often (but not always) have needles and produce cones. These needled cone-bearing trees are called conifers. Example of conifer trees include pine, fir, spruce and cedar.

Individual upper branches may show these symptoms as well (as you are seeing in your blue spruce). Needles on infected branches turn purple, then brown. The brown needles may remain on the ...

But certain Christmas tree species are better at keeping their needles and holding ornaments. Two Christmas tree experts explain how to choose between the many types of fir, pine, and spruce.

The patch of defoliated trees near Little East Lake just east of the Canadian border was a sign the native budworm population had grown so large that its consumption of fir and spruce needles was ...