Larix decidua, the European larch, is a species of larch native to the mountains of central Europe, in the Alps and Carpathian Mountains, with small disjunct lowland populations in northern Poland. Its life span has been confirmed to be close to 1000 years, with ages of around 2000 years likely.
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👉 Larix decidua in the context of Great spruce bark beetle
Dendroctonus micans, the great spruce bark beetle, is a species of bark beetle native to the coniferous forests of Europe and Asia. The beetles attack economically important spruce species including Picea abies (Norway spruce) and Picea sitchensis (Sitka spruce). The adults burrow into the bark of the trees and lay eggs there. The larvae feed on the phloem under the bark; they can girdle the tree if present in large enough numbers.
The species is a serious pest of commercial forestry, and is an invasive species in many regions where it is not native, such as the United Kingdom, France, Turkey, Georgia, and North America. While its main host is spruce, it also attacks coniferous trees of other genera, including firs such as Abies sibirica (Siberian fir); pines such as Pinus sylvestris (Scots pine); the Douglas-fir Pseudotsuga menziesii, and the common larch, Larix decidua. Biological pest control has been applied using a natural predator, the beetle Rhizophagus grandis, in several countries.
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Larix decidua in the context of Tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only plants that are usable as lumber, or only plants above a specified height. Wider definitions include taller palms, tree ferns, bananas, and bamboos.
Trees are not a monophyletic taxonomic group but consist of a wide variety of plant species that have independently evolved a trunk and branches as a way to tower above other plants to compete for sunlight. The majority of tree species are angiosperms or hardwoods; of the rest, many are gymnosperms or softwoods. Trees tend to be long-lived, some trees reaching several thousand years old. Trees evolved around 400 million years ago, and it is estimated that there are around three trillion mature trees in the world currently.