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Cytisus scoparius (syn. Sarothamnus scoparius), the common broom or Scotch broom, is a deciduous leguminous shrub native to western and central Europe. [2] In Great Britain and Ireland, the standard name is broom; [3] [4] [5] this name is also used for other members of the Genisteae tribe, such as French broom or Spanish broom; and the term common broom is sometimes used for clarification.
Bruchidius villosus is a species of bean weevil known by the common names broom seed beetle and Scotch broom bruchid. This beetle is used as an agent of biological pest control against the noxious weed known as Scotch broom (Cytisus scoparius). This is a dark gray weevil about two millimeters long.
Much of the plant deaths occur when insect damage makes the plant susceptible to disease. Research is now focused on other agents of biocontrol for Scotch broom. [1] In the 1950s the moth was accidentally introduced to New Zealand. It has since become established. It has caused localized die-backs of scotch broom throughout the country. [2]
Cytisus 'Lena' (or Broom 'Lena') is a hybrid broom of two species of Cytisus, Cytisus scoparius × Cytisus dallimorei, and is known as 'Lena' after the German hybridizer, Herr Lena. He is credited with a handful of other classic broom cultivars. [1] It is a small deciduous shrub with slender green shoots and small trifoliate leaves.
On the west coast of the United States, French broom (Genista monspessulana), Mediterranean broom (Genista linifolia) and Spanish broom (Spartium junceum) are also considered noxious invasives, as broom quickly crowds out native vegetation, and grow most prolifically in the least accessible areas.
Exapion fuscirostre (formerly Apion fuscirostre) is a species of straight-snouted weevil known by the general common name Scotch broom seed weevil. It is used as an agent of biological pest control against the noxious weed known as Scotch broom ( Cytisus scoparius ).
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Gorse is closely related to the brooms, and like them, it has green stems, very small leaves and is adapted to dry growing conditions. However, it differs from the brooms in its extreme thorniness, the shoots being modified into branched thorns 1–4 centimetres ( 1 ⁄ 2 – 1 + 1 ⁄ 2 inches) long, which almost wholly replace the leaves as ...