Life cycle and identification of bark beetles. In Florida, the life cycle of the southern pine beetle from egg to adult can be completed from 30 to 60 days, with seven generations per year.

In many cases, one white pine will decline while other trees in the vicinity appear healthy (Fig 3, 4). Removal of symptomatic trees is important because stressed trees often attract bark beetles ...

Other than various native conifers (such as white pine and hemlock), this species is probably the largest tree in eastern North America. Its leaves are relatively large, as trees' leaves go ...

White pine decline causes pale green or off-color limp, drooping needles that later turn brown. The bark may be spongy and may shrivel and ooze sap. Usually, the entire tree is affected at once ...

White pine blister rust, an invasive fungal disease, is the primary threat to the pine. Dead red branches and orange-rimmed canker sores are signs of the disease, which can eventually kill the tree.

The Eastern white pine (Pinus strobus) is identified best by its reddish-brown bark and deep furrows, which it acquires as the tree ages. It typically grows to be between 50 and 80 feet tall .

Have you ever paused beneath a towering oak or maple and wondered if that rough, gnarled bark is hiding secrets? What if I told you trees are nature’s own weather stations—silent, stoic, and ...

About 100 seedlings of the whitebark pine tree were planted in Central Oregon early last month. The goal is to help increase their declining population. April 27, 2025 ...

The bark on younger trees is dark and relatively smooth, and becomes quite furrowed in older trees. The eastern white pine adds a ring of side branches and a terminal shoot yearly with age. The cones ...

Most of us are probably within arm’s length of a piece of Pinus strobus secondary xylem, more casually called white pine wood. Skip to main content Skip to main ...