Search results for " palm"

Stratégies de lutte contre le charançon rouge du palmier

2018

La communauté scientifique internationale (source : publication FAO d’avril 2017) s’accorde sur l’importance de la combinaison des mesures de lutte en fonction des niveaux d’infestation par le charançon rouge du palmier. Plusieurs mesures de lutte sont disponibles ou envisageables : assainissement mécanique, application d’insecticides à titre préventif ou curatif, piégeage de masse et biocontrôle (lutte biologique sensu stricto). Il est à noter que plusieurs expérimentations sur le biocontrôle sont en cours.Dans la perspective d’améliorer les stratégies de lutte contre le charançon rouge du palmier, il est demandé : 1) d’identifier les stratégies de lutte (en tant que combinaison de différe…

Present Uncertainty and Looking to the Past: The Ambiguous Literary Nationalism of Putnam’s Monthly

2023

Putnam’s Monthly (1853-1857) was one of the best literary and general interest magazines in antebellum America. Besides its high quality, what made the New York-based magazine stand out was its commitment to publishing American writers and focusing on American themes at a time when, with no reliable international copyright protection in place, many periodicals in the United States were in the habit of reprinting the works of foreign (primarily British) authors, sometimes without payment. However, despite its optimistic literary nationalism, Putnam’s Monthly expressed uncertainty about the quality of contemporary American literature and, indeed, about the capacity of American society to enco…

Una specie di acaro associata al Punteruolo rosso delle palme: Centrouropoda almerodai (Uroactiininae, Uropodina)

2009

Gli antagonisti naturali del Punteruolo rosso delle palme

2009

Un disegno per Palazzo Comitini a Palermo

2006

Il contributo analizza il disegno riguardante il prospetto principale di palazzo Comitini, uno dei più significativi esempi di architettura residenziale settecentesca a Palermo, ritrovato dall'autrice e conservato dall'ultimo discendente della famiglia Gravina. L'analisi del disegno, unitamente ad alcuni documenti emersi nel corso della ricerca, getta nuova luce sui tempi di costruzione della fabbrica e attribuendone la paternità all'architetto Nicolò Palma. Il disegno ha un importante valore documentario perché raffigura la facciata del nuovo braccio del palazzo su via Maqueda, prima dei lavori di trasformazione realizzati a opera dell’amministrazione provinciale tra il 1926 e il 1931.

First report of Phytophthora palmivora on Coronilla valentina subsp. glauca in Italy

2019

The genus Coronilla L. (family Fabaceae), which includes several species native to central and southern Europe, such as C. varia L. (axseed or crown-vetch), C. emerus (scorpion senna), and C. valentina L., is used in Italy as a landscape shrub or potted ornamental plant. During the summer of 2001, 80% of approximately 10,000 1-year-old plants of C. valentina subsp. glauca (L.) Batt. used to landscape an industrial area in the Caltanissetta Province (Sicily) showed symptoms of dieback associated with basal stem and root rot. Plants had been transplanted from pots in April and watered using a trickle irrigation system. A species of Phytophthora was isolated consistently from rotted roots and…

First Report of Phytophthora palmivora on Grevillea spp. in Italy.

2003

The genus Grevillea (family Proteaceae) comprises over 300 species and is a popular and widely cultivated group of Australian plants. In the last 3 years, numerous potted grevilleas with symptoms of decline associated with a rot of feeder roots were found in ornamental nurseries in Sicily. Aboveground symptoms were reduced growth, yellowing of foliage, wilt, dieback, and death of the entire plant. The disease was observed on many commercial cultivars and was especially severe on G. alpina (mountain grevillea), G. juniperina (juniper-leaf grevillea), G. lavandulacea (lavender grevillea), and G. rosmarinifolia (rosemary grevillea) as well as the hybrid cultivars Clearview David (G. lavandula…

Influence of hydrogen cations on kinetics and equilibria of heavy-metal sorption by algae—sorption of copper cations by the alga Palmaria palmata (Li…

2013

The influence of hydrogen cations on kinetics and equilibria of sorption of copper cations by the marine alga Palmaria palmata (Linnaeus) Weber & Mohr was studied under static conditions. The competitive effect of the H+ cations is described, which influenced the uncertainty of evaluation of the alga sorption capacity. Under static conditions, the variation of the Cu2+/H+ concentration ratio during sorption was found nonmonotonic. The Langmuir isotherm model was used to determine the sorption capacity of the alga, namely 12.4 mg g−1 of dry algae mass. A similar value was determined from the kinetic parameters of the ionic exchange which is considered a pseudo-second-order chemical reaction.…

First Report of Bud Rot of Canary Island Date Palm Caused by Phytophthora palmivora in Italy.

2007

Canary Island date palm (Phoenix canariensis hort. ex Chabaud) is planted as an ornamental in Mediterranean climatic regions of the world. From 2004 to 2006, withering of the spear leaf was observed on screenhouse-grown potted plants of this palm in Sicily (Italy). The first symptom was a dark brown rot that extended from the petiole base of the spear to the adjacent youngest leaves and killed the bud. Dissection of plants revealed a foul-smelling internal rot. After the bud died, external older leaves remained green for months. As much as 10% of plants in a single nursery were affected. A Phytophthora species was consistently isolated from symptomatic plants on BNPRAH selective medium (4)…

First report of Phytophthora palmivora as a pathogen of olive in Italy

2000

Olive (Olea europea L.) is an economically important crop in Italy and is planted on about 1 million ha. The Apulia, Calabria, and Sicily regions of Southern Italy account for about 70% of the production. Many new plantations have been established during the last 10 years. In summer 1999, 1- to 2-year-old olive trees (cv. Carolea) with decline symptoms were observed in new plantations in Catanzaro Province (Calabria). The symptoms associated with the root rot were leaf chlorosis, defoliation, wilting, twig dieback, and eventual plant collapse. In some cases, more than 40% of the trees were affected. A Phytophthora sp. was isolated consistently from rotted rootlets of diseased trees using a…