Search results
Results from the WOW.Com Content Network
The Swiss pine is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. The mature size is typically between 25 metres (82 ft) and 35 metres (115 ft) in height, and the trunk diameter can be up to 1.5 metres (4.9 ft).
The bristlecone pine's root system is mostly composed of highly branched, shallow roots, while a few large, branching roots provide structural support. The bristlecone pine is extremely drought tolerant due to its branched shallow root system, its waxy needles, and thick needle cuticles that aid in water retention. [8] Gnarled bristlecone pine wood
Symptoms on Scots pine Symptoms on jack pine. Cyclaneusma (needle cast) is a fungal disease that is a part of the phylum, Ascomycota. It infects plants that are of pine classification. [1] After infection by Cyclaneusma, most pines do not display symptoms until 10 months after the initial infection. Symptoms include needles developing yellow ...
Dothistroma septosporum or Mycosphaerella pini is a fungus that causes the disease commonly known as red band needle blight. This fungal disease affects the needles of conifers , but is mainly found on pine .
The spores from Diplodia sapinea fungus typically first develop on the structures that will eventually develop on the “black fruiting structures that form on needles, fascicle sheaths, scales of second year seed cones, and bark” [6] During the wet/rainy season, (depending on the location, could be from early spring until late fall) where the wet weather and wind can allow the spores to ...
Larch shoots are dimorphic, with leaves borne singly on long shoots typically 10 to 50 cm (4 to 20 in) long [2]: 47 and bearing several buds, and in dense clusters of 20–50 needles on short shoots [2] only 1–2 mm (1 ⁄ 32 – 3 ⁄ 32 in) long with only a single bud.
The pine needles are in fascicles (bundles) of three, distinctively pale gray-green, sparse and drooping, and grow to 20–30 centimetres (8–12 in) in length. The seed cones are large and heavy, 12–35 cm ( 4 + 3 ⁄ 4 – 13 + 3 ⁄ 4 inches) in length and almost as wide as they are long.
The most important work in the winter was the preparation of equipment, especially the making of pitch notches via the use of a special tool called a "Notch Planar." Pitch notches were wooden planks, which were inserted against the tree after bark removal (between the bare trunk and the remaining bark on the edges) to help direct resin flow.