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Co-existing tree and plant species will gain in the void left by the affected species, but often providing different functions. Eastern hemlock, for example, is commonly replaced by black birch in the northeast—a slow-growing, shade-tolerant and deep shade producing evergreen tree, replaced by a fast-growing, open, deciduous tree. While short ...
A number of newly occurring and fast spreading invasive insect pests and diseases such as Polyphagous Shot Hole Borer (PSHB) (Euwallacea spp.), [21] which can vector plant pathogenic fungus Fusarium euwallaceae, [22] and Sudden Oak Death (SOD) caused by an Oomycete Phytophthora ramorum, establish the use of endotherapy as the most efficient tree protection technique in landscapes and urban ...
Plant Image Pests Artemisias: repels insects, [2] including ants, cabbage looper, cabbage maggot, carrot fly, codling moth, flea beetles, whiteflies, the Cabbage White, and the Small White, as well as mice [3] Basil: repels flies, including mosquitoes [2] [4] the carrot fly, asparagus beetles and whiteflies [3] Borage: repels tomato hornworm ...
The evergreen bagworm (Thyridopteryx ephemeraeformis), commonly known as bagworm, eastern bagworm, common bagworm, common basket worm, or North American bagworm, is a moth that spins its cocoon in its larval life, decorating it with bits of plant material from the trees on which it feeds. The evergreen bagworm's case grows to over 6 cm, tapered ...
Witch's broom or witches' broom is a deformity in a woody plant, typically a tree, where the natural structure of the plant is changed. A dense mass of shoots grows from a single point, with the resulting structure resembling a broom or a bird's nest. It is sometimes caused by pathogens.
These are sprayed on the foliage and smother the insects as they dry. Most trees need to be treated on a yearly basis. [15] Toxic systemic insecticides may be applied to the foliage and bark of a tree and can persist in killing the adelgid for up to four years after application. Caution must be used, [15] and restraint exercised around bodies ...
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