Ant-repellent triterpenoids from Cordia alliodora

1983 ◽  
Vol 48 (20) ◽  
pp. 3525-3531 ◽  
Author(s):  
Ted K. Chen ◽  
Diane C. Ales ◽  
Norman C. Baenziger ◽  
David F. Wiemer
Keyword(s):  
Cordia Alliodora ◽  
Ant Repellent

ChemInform Abstract: ANT-REPELLENT TRITERPENOIDS FROM CORDIA ALLIODORA

1984 ◽  
Vol 15 (11) ◽  
Author(s):  
T. K. CHEN ◽  
D. C. ALES ◽  
N. C. BAENZIGER ◽  
D. F. WIEMER
Keyword(s):  
Cordia Alliodora ◽  
Ant Repellent

Modelling agroforestry systems of cacao (Theobroma cacao) with laurel (Cordia alliodora) or poro (Erythrina poeppigiana) in Costa Rica

1990 ◽  
Vol 12 (3) ◽  
pp. 229-249 ◽  
Author(s):  
J. Beer ◽  
A. Bonnemann ◽  
W. Chavez ◽  
H. W. Fassbender ◽  
A. C. Imbach ◽  
...  
Keyword(s):  
Costa Rica ◽  
Theobroma Cacao ◽  
Agroforestry Systems ◽  
Cordia Alliodora ◽  
Erythrina Poeppigiana

Lasidiol angelate: an ant repellent sesquiterpenoid from Lasiantheae fruticosa

1981 ◽  
Vol 46 (26) ◽  
pp. 5449-5450 ◽  
Author(s):  
David F. Wiemer ◽  
Diane C. Ales
Keyword(s):  
Ant Repellent

Cucumber vs Ants: a Case Against the Myth of the Uses of Plant Extracts in Insect Pest Management

Sociobiology ◽  
2021 ◽  
Vol 68 (2) ◽  
pp. 5813
Author(s):  
Matan Shelomi ◽  
Bo-Jun Qiu ◽  
Lin-Ting Huang
Keyword(s):  
Plant Extracts ◽  
Scientific Evidence ◽  
Insect Pest ◽  
Management Strategies ◽  
Cost Effective ◽  
Detectable Effect ◽  
Realistic Situation ◽  
Potential Impact ◽  
High Concentrations ◽  
Ant Repellent

An accumulation of questionable scientific reports on the use of natural plant extracts to control household pest insects, using biologically irrelevant experimental designs and extremely high concentrations, has resulted in a publication bias: “promising” studies claiming readily available plants can repel various insects, including social insects, despite no usable data to judge cost-effectiveness or sustainability in a realistic situation. The Internet provides a further torrent of untested claims, generating a background noise of misinformation. An example is the belief that cucumbers are “natural” ant repellent, widely reported in such informal literature, despite no direct evidence for or against this claim. We tested this popular assertion using peel extracts of cucumber and the related bitter melon as olfactory and gustatory repellents against ants. Extracts of both fruit peels in water, methanol, or hexane were statistically significant but effectively weak gustatory repellents. Aqueous cucumber peel extract has a significant but mild olfactory repellent effect: about half of the ants were repelled relative to none in a control. While the myth may have a grain of truth to it, as cucumber does have a mild but detectable effect on ants in an artificial setup, its potential impact on keeping ants out of a treated perimeter would be extremely short-lived and not cost-effective. Superior ant management strategies are currently available. The promotion of “natural” products must be rooted in scientific evidence of a successful and cost-effective implementation prospect.

scholarly journals Chuva de sementes em remanescentes florestais de Campo Verde, MT

2014 ◽  
Vol 38 (4) ◽  
pp. 689-698
Author(s):  
William Pietro-Souza ◽  
Normandes Matos da Silva ◽  
Érica Pereira de Campos
Keyword(s):  
Cordia Alliodora ◽  
Mato Grosso

O objetivo deste trabalho consistiu em avaliar sazonalmente a produção de sementes provenientes de fragmentos florestais presentes na zona rural de Campo Verde, MT. Essa caracterização ocorreu em termos de produção de sementes e riqueza de espécies vegetais. Foram selecionados três fragmentos florestais caracterizados como Floresta Estacional Semidecidual. Em cada fragmento, cinco coletores foram instalados e confeccionados com canos de PVC (1 m²; malha de náilon de 0,001 m e 0,15 m de profundidade do bojo). O material foi coletado mensalmente, cujas sementes foram quantificadas e separadas conforme a síndrome de dispersão, etapa sucessional e forma de vida. Houve a determinação da densidade, frequência absoluta, índice de diversidade e equitabilidade. Ao todo, foram obtidas 3.622 sementes, pertencentes a 74 táxons. Maiores densidades de sementes foram observadas durante os meses de setembro, outubro e novembro. As lianas Gouania sp., Fridericia speciosa, Heteropterys sp. e Distictella sp. responderam com 55,95% do total de sementes aportadas. Das espécies que compuseram a chuva de sementes, 74% não são dispersas pelo vento. Todavia, quando se verificou a quantidade de diásporos coletados, formas dispersas pelo vento foram predominantes, representando 76% do total. Citam-se como táxons arbóreos importantes para a recomposição florestal na região de Campo Verde, situada no Sudeste de Mato Grosso: Tachigali rubiginosa, Siparuna guianensis, Nectandra sp., Cordia alliodora, Alibertia sp., Terminalia brasiliensis e Myrcia sp. Essas espécies devem ser alvo de estudos mais específicos relacionados ao seu potencial para recuperação de ambientes degradados, considerando-se as Áreas de Preservação Permanente e Reservas Legais.

Cordia alliodora (Ruiz & Pav.) Oken Cordia lutea Lam. Boraginaceae

2020 ◽  
pp. 597-602
Author(s):  
Narel Y. Paniagua-Zambrana ◽  
Rainer W. Bussmann ◽  
Carolina Romero
Keyword(s):  
Cordia Alliodora

scholarly journals SECADO A LA INTEMPERIE MEDIANTE APILADO EN CABALLETES Y CUADRADOS HORIZONTALES DE FERNANSÁNCHEZ (Triplaris cumingiana Fish. Mey.) Y LAUREL (Cordia alliodora Ruiz y Pav.) EN EL CANTÓN QUEVEDO, ECUADO

2009 ◽  
Vol 2 (1) ◽  
pp. 35-39
Author(s):  
Fidel Antonio Troya Mera ◽  
Guillermo Law Blanco ◽  
Pedro Suatunce Cunuhay
Keyword(s):  
Cordia Alliodora ◽  
Basal Media

Se evaluaron durante cinco meses, defectos de secado de la madera: abarquillados, combados, torceduras, rajaduras y grietas superficiales; así como también el contenido de equilibrio de humedad en las maderas de fernansánchez (T. cumingiana) y laurel (C. alliodora). Se compararon dos métodos de apilamiento: caballetes y cuadrados horizontales, en el secado de tablas de tres secciones del árbol (basal, media y terminal). No hubo diferencias significativas entre los métodos de apilamiento ni entre las secciones del árbol. Se determinó que es suficiente con 90 días de secado a la intemperie para que la madera de ambas especies alcance el contenido de humedad de equilibrio de la zona donde se realizó la investigación.

scholarly journals Selección de Árboles Semilleros en Plantaciones Forestales de la Península de Santa Elena. Ecuador.

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
Juan Valladolid Ontaneda ◽  
Ángel León Mejía ◽  
Daniel Paredes Flores
Keyword(s):  
Morphological Characteristics ◽  
Timber Species ◽  
Cedrela Odorata ◽  
Gmelina Arborea ◽  
Forest Species ◽  
Swietenia Macrophylla ◽  
Cordia Alliodora ◽  
Santa Elena ◽  
Number Of Seeds ◽  
Selection Of

El estudio de selección de árboles semilleros se realizó en las comunas Olón, Dos Mangas y Salanguillo del cantón Santa Elena, provincia de Santa Elena, Ecuador. El objetivo del estudio fue, identificar, caracterizar y seleccionar árboles semilleros de especies maderables con buenas características morfológicas, y que permitan disponer de semillas para trabajos de propagación de especies forestales en viveros con fines de reforestación. El estudio se inicia con la identificación y ubicación de plantaciones forestales de varias especies forestales establecidas entre los años 2000 a 2005, en las plantaciones se evaluaron las características dasométricas y morfológicas, las que permitieron seleccionar 11 árboles con características morfológicas deseables correspondientes a cinco especies forestales laurel blanco(Cordia alliodora), laurel negro(Cordia megalantha), caoba (Swietenia macrophylla), cedro (Cedrela odorata) y melina (Gmelina arbórea); cada árbol fue georreferenciado utilizando coordenadas UTM Datum WGS 1984 Zona 17M. La cantidad de semillas que pueden producir dichas especies forestales es proyectada por año la cual servirá como referencia para establecer programas de reforestación con materiales propios y adaptados a las condiciones ambientales en la provincia de Santa Elena Abstract  The study of selection of seed trees was carried out in the Olón, Dos Mangas and Salanguillo communes of the canton Santa Elena, Santa Elena province, Ecuador. The objective of the study was to identify, characterize and select seedlings of timber species with good morphological characteristics, and to allow seeds to be used for the propagation of forest species in nurseries for reforestation purposes. The study began with the identification and location of forest plantations of several forest species established between 2000 and 2005, on the plantations, the dasometric and morphological characteristics were evaluated, allowing the selection of 11 trees with desirable morphological characteristics corresponding to five forest species White laurel (Cordia alliodora), black laurel (Cordia megalantha), mahogany (Swietenia macrophylla), cedar (Cedrela odorata) and melina (Gmelina arborea); Each tree was georeferenced using coordinates UTM Datum WGS 1984 Zone 17M. The number of seeds that can produce these forest species is projected per year which will serve as a reference to establish reforestation programs with their own materials and adapted to the environmental conditions in the province of Santa Elena.

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