Search results for "Omologia"
showing 10 items of 602 documents
Western European Populations of the Ichneumonid Wasp Hyposoter didymator Belong to a Single Taxon
2019
Hyposoter didymator (Hymenoptera, Ichneumonidae) is a generalist solitary endoparasitoid of noctuid larvae. In the present work, we tested whether populations of H. didymator were divided in several genetically distinct taxa as described for many other generalist parasitoid species, and whether differences in H. didymator parasitism rates were explained by the insect host species and/or by the plant on which these hosts were feeding on. The genetic analysis of natural populations collected in different regions in France and Spain on seven different insect hosts and seven different host plants (775 individuals) showed that H. didymator populations belong to a unique single taxon. However, H.…
Scolitidi e loro parassitoidi sfarfallati da piante esca di pino laricio e pino d'Aleppo sull'Etna e sui monti Iblei.
2011
In due differenti pinete della Sicilia in cui si sono registrati recenti attacchi di scolitidi, in collaborazione con l’Azienda Foreste Demaniali, a fine autunno 2008 e 2009 alcune piante sono state abbattute e lasciate sul letto di caduta, intere e con chioma, fino alla primavera successiva in attesa della colonizzazione di coleotteri scolitidi. Nel demanio Sparano, (Noto, SR) a 620 m s.l.m., sui monti Iblei sono state abbattute piante esca di Pinus halepensis, mentre in due località del Parco dell’Etna, Passo Silletta (1200 m s.l.m.) e Secondo Monte (1600 m s.l.m.), sono state abbattute piante esca di Pinus laricio. A maggio dell’anno successivo, parti di fusto di diametro crescente lungh…
New Data on Ichneumonid Hibernation(Hymenoptera: Ichneumonidae)in the Barnova Forest Massif (Iasi County, Romania)
2014
In this paper the authors present the results of their researches made in the period of 2006–2010 on the hibernation of some ichneumonid species in the Bârnova forest massif (Iaşi county). 30 species of ichneumonids (only females) belonging to 20 genera of the the subfamily Ichneumoninae were recorded. Five of these species are new as hibernating. During the studied period there were established 6 hibernating stations, but with a low abundance.
The biological control applied in Citrus orchards against harmful exotic pests in Sicily (Italy)
2018
The citrus groves are injured by infestations caused by indigenous species or old and new phytophagous introduced. Several problems have found in the biological control a optimal solution that allowed a considerable reduction in the use of chemical products. In fact, applications of programs using biological methods has been more successful on citrus than in any other cropping system. Sicily (Italy), due to its location in the Mediterranean Sea, represents an island particularly rich flora and fauna with a characteristic biodiversity different from those of other countries and regions of Italy. It produces about 60% of the national citrus production with more areas of organic citrus groves.…
Integrating natural enemies and semiochemicals in cultural control for an effective IPM
2012
Since their discovery, many semiochemicals (behavior modifying chemicals) have been identified and synthetized, and a number of techniques have been developed to use them in integrated pest management (IPM) programs against insect pests. In particular, the uses of semiochemicals in IPM to monitor insect pest populations and to interfere with their behavior preventing agricultural damage are widely adopted by the growers. In the same time, evidences that semiochemicals can also modify the behavior of insect natural enemies inspired researchers to explore the possibility to use semiochemicals to conserve and/or enhance the efficacy of natural enemies in cropping systems. However the use of se…
Risultati preliminari del monitoraggio di lepidotteri diurni in un sito di interesse comunitario per differenti scopi applicativi
2010
Durante il XX secolo e specialmente negli ultimi 50 anni è stato riportato un declino nel numero specie di lepidotteri diurni presenti in Europa, ed ad una modificazione delle comunità delle farfalle. Tale decremento è stato attributo a diversi fattori: frammentazione e la scomparsa degli habitat e l'intensificazione dell'agricoltura e delle pratiche ad essa connesse. L'introduzione di nuovi prodotti in agricoltura, quali ad esempio le piante geneticamente modificate o i prodotti a base di virus entomopatogeni hanno posto ancor più l'accento sulla necessità di monitorare i lepidotteri non target (principalmente i diurni) sia come data set iniziale sia per i piani di post monitoring. A tal f…
Chemical Ecology of Insect Parasitoids
2013
Oviposition deterrence and repellent activities of selected essential oils against Tuta absoluta Meyrick (Lepidoptera: Gelechiidae): laboratory and g…
2022
AbstractTuta absoluta, an invasive pinworm characterized by high reproductive potential and adaptation to different agroecological conditions, cause serious damage to tomato crops. Chemical control with synthetic insecticides is widely used to control this pest, although pesticides exhibit side effects on non-target organisms and negatively impact the environment, with the occurrence of resistance to some active substances in the target pest. The use of essential oils (EOs) from aromatic or officinal plants could represent an environmentally safe control method, alternative to synthetic insecticide application. In this work we investigated the effect of EOs from Spanish oregano, laurel, bas…
The mantids of Caucasus.
2008
The male of Hierodula trancaucasica Brunner von Wattenwyl, 1878, is described here. The external morphology and shape of genitalia are analysed. A comparison with previous data and some biogeographical considerations on Paramantini are given.
European Red List of Grasshoppers, Crickets and Bush-crickets
2016
The European Red List is a review of the conservation status of European species according to IUCN regional Red Listing guidelines. It identifies those species that are threatened with extinction at the regional level, so that appropriate conservation action can be taken to improve their status. This Red List publication summarises results for all hitherto described native European Orthoptera species (grasshoppers, crickets and bush-crickets). All Orthoptera species (grasshoppers, crickets and bushcrickets) native to or naturalised in Europe before AD 1500 (a total of 1,082 species), have been assessed in this Red List. The geographical scope is continent-wide, extending from Iceland in the…