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Abies balsamea

Balsam-kraut, n. costmary moschatel. -pappel, /. balsam poplar, tacamahac. -taone, /. balsam fir (Abies balsamea) spruce (esp. Norway spruce, Picea abies). [Pg.56]

Analogs of juvenile hormones found in plants include the juvoclmenes in Ocimum basillcum, juvablone in Abies balsamea, and farnesol in many plant oils (lA). These natural plant products have never been used commercially as a source of insecticides, but they have served as model compounds for the development of synthetic juvenile hormone analogs such as kinoprene and methoprene (Figure 5). [Pg.399]

Abies balsamea (L.) Mill., Pinaceae, conifas, Gymn. frcnn the northern conifer forest MI... [Pg.177]

Canadian fir needle oil (balsam fir oil) is produced in Canada and in several northern states of the United States from needles and twigs of Abies balsamea (L.) Mill. It is an almost colorless to pale yellow liquid with a pleasant balsamic odor. [Pg.215]

Fir needle, Canadian Abies balsamea MUl. Esters calculated as bornyl acetate (8-16)... [Pg.78]

Oxy-Cope rearrangement (7, 302-303 8, 412-414). Further studies indicate that the rearrangement of 1,5-diene alkoxides can be used for stereoselective generation of asymmetry. An application is the stereoselective synthesis of eryf/iro-juvabione (1), a sesquiterpene from Abies balsamea, shown in equation (I). ... [Pg.327]

The droplet of insecticide on the foliage of fir (Abies balsameae (L) Mill.) and spruce (Picea spp.) may be in the form of a deposit on the surface or it may be absorbed into the foliage depending on the physical-chemical properties of the insecticide, the insecticide mix applied, and the foliage. Some insecticides suffer an initial rapid loss due to washing off and weathering of the deposit while others are absorbed and held in the foliage for periods of up to several months. [Pg.242]

Sundaram (4) found that, due to the geometry of the needle fir (Abies balsamea) acted as a better receptor of phosphamidon than spruce foliage. The fir collected about 75% more insecticide than the spruce. In comparing the relative amounts of the cis and Trans isomers, it was found that the Trans isomer was preferentially absorbed into the foliage while the cis form remains on the surface. The surface residue is then more rapidly lost by physical and metabolic processes. [Pg.245]

Another developmental hormone is the juvenile hormone, which predominates early in larval life later ecdysone predominates. It is a methyl ester of the epoxide of a fatty acid derivative, and there is some evidence that its structure differs in different groups of insects. By a series of coincidences, it was discovered that certain paper toweling prevented the European bug, Pyrrhocoris apterus, from developing into sexually mature adults. Instead, an extra one or two larval molts ensued, and all eventually died without being able to complete metamorphosis. The juvenility factor was traced to particular conifers used in American paper pulp, mainly Abies balsamea, Tsuga canadensis, Taxus brevifolia, and Larix laricina. The active principle was isolated and characterized. It... [Pg.107]

Fir Needle Oil, Canadian Type, occurs as a colorless to faintly yellow liquid with a pleasant, balsamic odor. It is the volatile oil obtained by steam distillation from needles and twigs of Abies balsamea L., Mill (Fam. Pinaceae). It is soluble in most fixed oils and in mineral oil. It is slightly soluble in propylene glycol, but it is insoluble in glycerin. [Pg.179]

From the balsam fir tree Abies balsamea, a sesquiterpenoid, juvabione (Figure 9), was isolated as a compound that has a JH activity that causes the last instar larvae of European linden bug, Pyrrhocoris apterus, to molt into nymphal-adultoid forms.58,59 Since then, a number of phytojuvenile hormones have been detected56 such as juvocimene I and II from the sweet basil Ocimum basilicum60,61... [Pg.347]

The feedstock was air-dry softwood bark obtained from a wood shredding plant. It was composed of approximately 31% v/v of balsam fir (Abies balsamea), 55% v/v white spruce (Picea giauca) and 14% v/v black sprace (Picea mariarta). The moisture content of e feedstock at the inlet of the reactor averaged 10.0% by wt. The... [Pg.1302]

Terebinthina Liquid oleoresin Abies balsamea Northern United... [Pg.295]

Vegetation on mountain slopes of sufficient elevation reveals itself organized in altitudinal bands or belts. Clearly visible examples abound, as in the northern Appalachian range where deciduous hardwood Betula-Acer-Fagus forests dominate the lower belt whereas Picea rubens-Abies balsamea conifers are more densely distributed in the upper band followed by a rather abrupt end of the tree type vegetation leading to tussocks, lower grasses and prostrate alpine plants in the upper reaches. Many other examples exist elsewhere (e.g. Cavieres et al., 2000). [Pg.892]

Richardson, A. D., Berlyn, G. P., Gregoire, T. G. 2001. Spectral reflectance of Picea rubens (Pinaceae) and Abies balsamea (Pinaceae) needles along an elevational gradient, Mt. Moosilauke, New Hamshire, USA. Am. J. Bot. 88 667-676. [Pg.979]

The northern part of this region is covered with Pre-Tundra Spruce, Larch-Spmce and, at places. Larch Thin Forest and Black Coniferous North Taiga Forest ecosystems, in which Picea mariana and Picea canadensis predominate. Abies balsamea, Larix laricina are mixed with these, and birch and aspen are also found. This part lies in the permafrost area and permafrost features determine the development of biogeochemical process Cb is equal to 8.5, Ct, to 0.35 and Cbr, to 3.0. [Pg.321]

The southern part of the Laurentian region is covered by Podzols and Spodi-Distric Cambisols with Black Coniferous Forest ecosystems of Picea mariana, P. glauca, and Abies balsamea Larch and birch are mixed with these species. Pine Forest ecosystems of Pinus banksiana, bog mosses and lowland bogs occur in this part of the region also. The biogeochemical cycling of the elements is faster than in the northern part, but anyhow it is the depressed type of turnover (see Table 1). [Pg.321]

Insecticidal Metabolites from Fusarium avenaceum, a Fungus Associated with Foliage of Abies balsamea Infested by Spruce Budworm, Choristoneura fumiferana... [Pg.113]

Toxic effects produced on a lepidopteran species by ingestion of enniatin complex do not appear to have been noted previously. With such properties, the enniatins could affect populations of spruce budworms in the field if produced in sufficient quantity by F. ave-naceum on budworm-infested foliage. Definitive quantitative field data on enniatins and other fungal toxins associated with host-tree foliage, both insect-free and budworm infested, remain to be collected. Preliminary attempts to isolate enniatins from detached and autoclaved foliage of Abies balsamea inoculated with FA 120 were inconclusive. [Pg.117]

Two studies have attempted to use fluorescence to distinguish different wood species. Sum et al. [189] measured the fluorescence emission spectra excited at 308 nm in the heartwood and sapwood of jack pine (Pinus banksiana), white spruce (Picea glauca) and balsam fir (Abies balsamea). Very broad emission between 400 and 600 nm occurs for all these species. Pandey et al. [190] examined the fluorescence of several tropical hardwoods. The fluorescence spectra of the wood extracts were highly dependent on the excitation wavelength, while those of dry solid woods were not. [Pg.91]


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