Girdled

Girdled roots: Roots that wrap around the trunk of a tree or wrap around each other. They can restrict plant growth.
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Many homes are girdled by evergreen foundation plantings.
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Mixed shrubs and flower beds can provide a different look from traditional foundation and entry plantings.

Plants wilt and die suddenly is usually caused by roots which are girdled by larvae of the Black Vine Weevil, Otiorhynchus sulcatus, Strawberry Root Weevil, Otiorhynchus ovatus, or Twobanded Japanese Weevil, Callirhopalus bifasciatus.

Symptoms: Symptoms result from girdling of the trunk and, at least in part, resemble symptoms of trees girdled by other causes.

Most damage is caused by the larvae on young trees, that may be hollowed, partially severed, or girdled at or slightly below the root collar, causing breakage.

Gently remove a container plant from its pot (once out of the container, handle the vine by the root ball), untangle any girdled roots, and place it in the hole.

Infected leaves fall when the petiole is girdled or when several lesions enlarge and coalesce to form large, dead blotches. After defoliation from spring infections, the tree may appear bare except for tufts of leaves at branch tips.

The larvae bore into peach or plum trees close to the ground level. Heavily infested trees may be girdled, which will kill the trees. This pest is controlled in mid- to late August. For best results, thoroughly cover the trunk with insecticide.

Squash vine borer larvae tunnel into watermelon vines, chewing inner tissue near the base and filling the stem with moist, slimy castings. The attacked vines wilt suddenly and girdled vines rot and die.

A girdled root cuts off or reduces the amount of water reaching the needles, causing purple needles. Any activity that damages spruce roots (like trenching or digging) also prevents them from absorbing water well, producing the off-color.

Young trees are at times completely girdled and subsequently die. Older trees are often so severely injured that their vitality is lowered and they are rendered especially susceptible to attack by other insects or by diseases.

Girdle - Encircling of plant roots, stems, trunks or branches resulting in a constriction of the plant part, or a reduction of water and nutrient flow through the girdled plant part.

2. Plant each tree or shrub at the same depth it was previously (indicated by a line on the stem), placing it carefully in the planting hole, spreading out the roots and pruning away any that have girdled or curled.

Hit the bottom and sides of the container until the root ball is loosened. Make sure to protect the foliage by laying the tree on its side. If the roots are root bound or girdled, you should disturb the root mass before planting.

See also: Girdle, Plant, Growing, Water, Produce