Arborikole Zikaden-Gilden in Slowenien: (Hemiptera, Auchenorrhyncha)

Guilds of arboricolous Auchenorrhyncha in Slovenia (Hemiptera). – Auchenorrhyncha were sampled on 51 species of trees and shrubs in 71 localities throughout Slovenia. Altogether, the material included 3772 individuals (2947 adults), belonging to193 species, 30 genera and 9 families. Auchenorrhyncha guilds of trees and shrubs are described and discussed. 41 species are reported as new for Slovenia, which increases the total number of the verified species to 419

Zur Fauna der Zikaden, Wanzen und Augenfliegen des Kaiserstuhls: (Hemiptera: Auchenorrhyncha et Heteroptera; Diptera: Pipunculidae)

On the fauna of hemipteran bugs (Hemiptera: Auchenorrhyncha et Heteroptera) and big-headed flies (Diptera: Pipunculidae) of the Kaiserstuhl, southwestern Germany. – Field records of 157 Auchenorrhyncha species gathered on field excursionsto five sites in the Kaiserstuhl Hill during the 9th Auchenorrhyncha Meeting, June 14th - 15th 2002, are presented. Particularly noteworthy was the first German record of the leafhopper Arocephalus sagittarius Rib., which was so far only known from southwestern Europe, and the very rare Edwardsiana smreczynskii Dwor., which is known only from less than 10 localities in Poland, Slowakia, Germany, Switzerland and France. Two further species, which are known in Germany only from this locality, notably Cixidia pilatoi D'Urso & Gugl. and Phlepsius intricatus (H.-S.), were no more found

Antenna front-end concepts of a low-cost coherent radar demonstrator for S-band application

Some of the concepts of an AESA antenna frontend for a low-cost coherent radar system demonstrator intended for maritime applications in the S-band are presented in this contribution. Manufacturing and maintenance cost reduction with respect to present commercial systems is achieved by replacing the conventionally used magnetron RF power generation and the mechanically rotated antenna by a semiconductor transmitter and an AESA antenna with custom-developed mixedsignal integrated circuits as core components of its T/R-modules. The operation with coherent signals facilitates the application of modern signal processing techniques in order to compensate for the heavily reduced peak transmit power

Search for red imported fire ant 'Solenopsis invicta' Burren in NSW from 2004-2006

The search in New South Wales for red imported fire ant (Solenopsis invicta Burren) as part of the national surveillance program from July 2004 to June 2006 is summarized. Extensive surveillance coupled with a public awareness campaign resulted in 1779 premises inspected with 1536 ant samples submitted for identification, including 216 from the public or as a result of contacts with the public. A total of 40 ant species were identified contributing to a revised understanding of the distribution of ants in New South Wales. Inspections of port and shipping container facilities made up 34% of activities, followed by residences (16%) and nurseries (14%). Red imported fire ants was not detected however yellow crazy ant (Anoplolepis gracilipes Jerdon) was confirmed at three locations.4 page(s

Australian plant biosecurity surveillance systems

Australia is an island nation and a primary producer of agricultural and horticultural products. There is a large diversity of plant biosecurity threats which could adversely impact on Australia's production and exports. Surveillance has traditionally been used to monitor pests and optimise production. Increasingly surveillance is being used for early detection of exotic incursions, demonstration of eradication of incursions and pest freedom from exotic or endemic pests. These newer uses of surveillance utilise general and specific surveillance: surveillance data is maintained in electronic databases. Specific surveillance is a targeted surveillance search used by industry or state regulators for a specific pest to support pest freedom or other trade standards. The plant biosecurity surveillance cycle shows the flow of surveillance operations. In this paper, this cycle is demonstrated by case studies including pre border and the northern Australian at-border surveillance for the Australian-Asian interface. Within Australia, the multiple plant pest surveillance program was established in most capital cities where there are high flows of population and produce. As an industry example, the cotton industry surveillance program, particularly for cotton leaf curl, demonstrates how plant biosecurity surveillance operates within an industry. Asiatic citrus canker is another example of industry pertinent surveillance. Finally, surveillance for the purpose of declaring pest freedom areas is reviewed using fruit flies and currant lettuce aphid as examples