The Termiticidal Substances from the Wood of<i>Podocarpus macrophyllus</i>D. Don

Saeki, Isako; Sumimoto, Masashi; Kondo, Tamio

doi:10.1515/hfsg.1970.24.3.83

Cited by 24 publications

(10 citation statements)

References 3 publications

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“…Plant allelochemicals are substances occurring in wood that, unlike lignin and cellulose, do not contribute to the structural integrity of wood, but are important in conferring resistance to the attack of wood‐eating organisms 7. Some compounds from resistant woods have been reported to be toxic to termites, such as the acetylenic sesquiterpenoid, chamaecynone, from Chamaecyparis pisifera (Sieb & Zucc) Endl,8 the naphthoquinone, 7‐methyljuglone, from Diospyros virginiana L,9 the iridoid glycoside, loganin, from Guettarda speciosa L10 and the sesquiterpenoid alcohols, cedrol and widdol, from Juniperus spp 11. Other wood substances are termite repellents, such as 2‐furfuraldeyde from Pinus sylvestris L,12 or feeding deterrents, such as carboxylic acids from Pinus lambertiana Dougl,13 limonoids from Phellodendron amurense Rupr,14 and Azadirachta indica A Juss,15 and the diterpenes, ferruginol, manool and nezukol from Taxodium distichum (L) Rich 7…”

Section: Introductionmentioning

confidence: 99%

Comparative effects of vetiver oil, nootkatone and disodium octaborate tetrahydrate on Coptotermes formosanus and its symbiotic fauna

Henderson

Laine

2002

Pest Management Science

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The potential of vetiver oil and nootkatone as wood treatments against Coptotermes formosanus Shiraki was examined by assessing the effects on termite tunneling, feeding activity and survival, and the consequences on the symbiont protozoa responsible for wood digestion. Comparisons were made with non-treated wood (control), wood treated with the borate compound Tim-Bor (a commonly used lumber preservative) and absence of a food source (starved termites), using choice and no-choice tests. All wood slices were prepared at the same time using a 10 g liter(-1) solution of each substance and were tested in four different sessions over one year to investigate longevity of the effects. Termites had to tunnel through sand to exploit the food sources, consisting of two wood slices, placed on opposite sides of the experimental enclosure. No-choice tests showed that in the presence of vetiver oil or nootkatone, tunneling activity was always the lowest; wood consumption, termite survival and flagellate numbers and species distribution were significantly different from the control and similar to the results obtained for starved termites and with Tim-Bor-treated wood. Nootkatone negatively affected termites for 12 months and was longer lasting than vetiver oil. In choice tests, when vetiver oil or nootkatone were present, termites exhibited a significant preference for non-treated wood. Our results confirmed both the toxicity and absence of repellency of Tim-Bor. Vetiver oil and especially nootkatone affected Formosan subterranean termites and their protozoa, acting as arrestants, repellents and feeding deterrents, and represent a promising natural alternative for the control of this invasive pest.

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Section: Introductionmentioning

confidence: 99%

Comparative effects of vetiver oil, nootkatone and disodium octaborate tetrahydrate on Coptotermes formosanus and its symbiotic fauna

Henderson

Laine

2002

Pest Management Science

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“…Tests on extractives of other woods have been reported and reviewed by Sandermann and Dietrichs 1957? 1968;1970;1971, andPetrowitz 1971. 28, Heft 2 man 1965, Saeki etal.…”

Section: Introductionmentioning

confidence: 99%

Feeding and Survival Responses ofReticulitermes flavipes(Kollar) to Extractives of Wood from 11 Coniferous Genera

Carter¹,

Smythe²

1974

Holzforschung

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Keywords Coniferous wood Protozoa Termite resistance Wood extractives Reticulitenmes flavipes Schlüsselwörter (Sachgebiete) Nadelhölz-er Protozoen TerfFiiteflf-'esistenz Holzini lalttsstoffc s flavipes Feeding and Survival Responses of Reticulitermes flavipes (Kollar) to Extractives of Wood from u Coniferous GeneraSummary Woods unfavorable to Reticulitermes flavipes (Kollar) in a force-feeding test on heartwood blocks of 11 American coniferous genera included Port-Orford-cedar, eastern redcedar, western redcedar, baiacypress, redwood, and ponderosa pine. The same woods were not attacked in a choice test of all the woods except Port-Orford-cedar, which was omitted because of its toxicity. Only one of two sources of western redcedar was unfavorable in both force and choice tests; one source of western hemlock was not attacked in the choice test. In force-feeding tests on sawdusts, solventextracted sawdusts, and the corresponding wood extracts on filter paper, overall survival was best on test materials of Douglas-fir, subalpine fir, and western larch, followed by western hemlock and Engelmann spruce Many of the extracts prepared from the unfavorable woods contained substances detrimental to termite survival. Fraß-und Überlebensreaktionen von Reticulitermes flavipes (Kollar) gegenüber Holzinhaltsstoffen von ii NadelholzartenZusammenfassung Von ii amerikanischen Nadelholzarten erwiesen sich in einem Zwangsfraßversuch mit Kernholz-Klötzchen die Arten Chamaecyparis lawsoniana (A. Murr.) Pari., Juniperus virginiana L., Thuja plicata U. Don, Taxodium distichum (L.) Rich., Sequoia sempervirens (D. Don) Endl. und Pinus ponderosa Laws, als resistent gegen Reticulitermes flavipes (Kollar). In einem Wahlversuch mit alien Holzarten ohne die toxische Chamaecyparis lawsoniana (A. Murr.) Pari, wurden die gleichen Holzer nicht betallen. Nur eine der Proben von Thuja plicata D. Don erwies sich als resistent sowohl m Zwangs-als auch Wahlversuchen; eine Probe der Tsuga heterophylla (Raf.) Sarg, wurde im Wahlversuch nicht befallen. In Zwangsfraßversuchen mit Sägespänen bzw. mit extrahierten bagespanen sowie den entsprechenden Holzextrakten auf Filterpapier war die Überlebensrate insgesamt am besten bei Testproben von Pseudotsuga menziesii (Mirb.) Franco, Abies lasiocarpa CHook.) JNutt., Lanx occidental Nutt., dann folgten Tsuga heterophylla (Raf.) Sarg, und Picea engelmanmi Parry. Viele der aus den existenten Hölzern gewonnenen Extrakte enthielten für Termiten toxische Bestandteile.

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“…Together with the NOE effect between H-12 and H-14 deduced from the 12-Z configuration in 1, 10) the relative stereochemistry of 1 was determined and the compound was tentatively named 16-hydroxy communic acid. Moreover, five known norditerpene, nagilactone C (2), 11) 7-hydroxy-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydro-phenanthrene-1-carboxylic acid (3), [12][13][14][15] podocarpa-8,11,13-trin-16-oic acid (4), [12][13][14][15] podocarpic acid (5), [12][13][14][15] and 15-hydroxydehydroabietic acid (6) 16,17) ; 22 flavonoid compounds containing four biflavonoids as heveaflavone (7), 18) podocarpusflavone-A (8), 19) amentoflavone (9), and II-4ٞ,I-7-dimethoxy amentoflavone (10) 18) ; the nine monoflavonoids, apigenin 586 Vol. 56, No.…”

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confidence: 99%