scholarly journals Extremely low infection levels of pathogens and nematodes in Trypodendron spp. (Coleoptera: Curculionidae)

2016 ◽  
Vol 62 (4) ◽  
pp. 202-206
Author(s):  
Rudolf Wegensteiner ◽  
Karolina Lukášová ◽  
Hana Vanická ◽  
Soňa Zimová ◽  
Magdalena Kacprzyk ◽  
...  
Keyword(s):  
Czech Republic ◽  
North America ◽  
Pheromone Traps ◽  
Infection Rates ◽  
Trypodendron Lineatum ◽  
Ambrosia Beetles ◽  
Forest Pests ◽  
The Czech Republic ◽  
Palearctic Region ◽  
Midgut Lumen

Abstract The striped ambrosia beetles Trypodendron lineatum and T. domesticum are timber forest pests in the Palearctic region and North America. Because only a few pathogens are known for Trypodendron species, the aim of this work was to determine the spectrum of pathogen species of T. lineatum, T. laeve, and T. domesticum. Trypodendron species were collected in pheromone traps at nine localities in the Czech Republic, five localities in Poland, and one locality in Austria. In total, 2,439 T. lineatum, 171 T. domesticum, and 17 T. laeve beetles were dissected and examined. Infection was found in only two of the 17 specimens of T. laeve and in only two of the 171 specimens of T. domesticum; in all four cases, the parasites were nematodes. Parasitisation of T. lineatum by nematodes was found in T. lineatum at eight localities with a mean (± SE) parasitisation level of 8.1 ± 4.7%. A Chytridiopsis sp. was detected in cells of the midgut epithelium of one T. lineatum specimen, and Gregarina sp. was detected in the midgut lumen of two T. lineatum specimens; no other pathogens were found in T. lineatum. The low infection rates and the tendency for infection by nematodes can be explained by the monogamy of Trypodendron spp. and their feeding on fungi in short galleries that are not connected to the galleries of conspecifics.

scholarly journals Catalogue of alien animal species in the Czech Republic

2005 ◽  
Vol 53 (4) ◽  
pp. 151-170 ◽  
Author(s):  
Hana Šefrová ◽  
Zdeněk Laštůvka
Keyword(s):  
Czech Republic ◽  
North America ◽  
Animal Species ◽  
Stored Products ◽  
Local Fauna ◽  
Forest Pests ◽  
The Czech Republic ◽  
Non Invasive ◽  
Stored Product Pest ◽  
Invasive Status

The catalogue of alien animal species registered in the Czech Republic, with data on their origin, date on the first observation, way of introduction (accidental, deliberate, spontaneous), invasive status (casual, non-invasive, post-invasive, invasive), habitat (eusynanthropic, urban, agricultural, natural), trophic requirements and possible influences (plant or stored-product pest, biodiversity influence). In total 595 species are listed, i.e. 1.8% of the fauna of this country; of these, 22 species of molluscs (8.8% of the local fauna), 451 spp. of arthropods (1.5%), 383 spp. of insects (1.4%), and 55 spp. of vertebrates (9.2%). Among the registered species, 248 spp. (41.8%) are confined to closed and heated spaces by their occurrence, and 287 spp. have become naturalized (48.2%). Of these 113 spp. are considered invasive (19% of alien spp.). 65 spp. (10.9% of aliens) are pests of stored products, 84 spp. (14.1%) are parasites of important animals, 53 spp. (8.9%) are pests of plants grown in heated rooms (above all, glasshouses), 28 ssp. (4.7%) are agricultural or forest pests, and 39 spp. (6.6%) may influence local biodiversity. The origin of the naturalized alien species is mostly in North America (70; 24.4%), the Mediterranean (61; 21.3%), E Asia (44; 15.4%), Central and SW Asia (43; 15%), and S or SE Asia (30; 10.5%).

scholarly journals Cognettia sphagnetorum (Vejdovský, 1878) (Annelida, Clitellata, Enchytraeidae) in North America, confirmed with molecular support

Check List ◽  
2021 ◽  
Vol 17 (3) ◽  
pp. 979-983
Author(s):  
Will K. Reeves ◽  
Jeremy R. Shaw ◽  
Mark J. Wetzel
Keyword(s):  
Czech Republic ◽  
North America ◽  
Dna Sequencing ◽  
Forest Soils ◽  
Model Organism ◽  
Northern Europe ◽  
Soil Biology ◽  
The Czech Republic ◽  
Western Washington ◽  
Cognettia Sphagnetorum

Cognettia sphagnetorum (Vejdovský, 1878), a common inhabitant of forest soils and bogs in northern Europe, is a model organism in soil biology. We report the first documented occurrence of C. sphagnetorum in North America, based on DNA sequencing from a Sphagnum bog in western Washington, USA. Sequences were identical to that of worms from Sweden and the Czech Republic.

scholarly journals Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic

2010 ◽  
Vol 41 (No. 4) ◽  
pp. 150-157 ◽  
Author(s):  
J. Šedivý ◽  
P. Born ◽  
J. Vostřel
Keyword(s):  
Czech Republic ◽  
Light Trap ◽  
Pheromone Traps ◽  
The Czech Republic ◽  
Elytrigia Repens ◽  
Sum Of Effective Temperatures ◽  
Long Time ◽  
Effective Temperatures

The Rosy rustic moth (<I>Hydraecia micacea</I>) has been a pest of hop in Czech hop regions for a long time. It causes most severe damages in hop gardens infested by quackgrass (<I>Elytrigia repens</I>) on waterlogged<B> </B>areas. Larvae emerge from the second half of April to the middle of May. The sum of effective temperatures (SET) necessary for hatching larvae has been determined to be 78.6C over a 4-year average. Young larvae first feed on leaves of quackgrass, and later move to hop plants where they feed inside the shoots and rootstocks. Occurrence and damage are<B> </B>most frequent at the edges of hop gardens and in places with anchorages between two hop gardens. The ichneumonid wasp <I>Ichneumon sarcitorius</I> and the fly <I>Lidella thompsoni</I> are the most common parasitoids of this pest. Numbers of males caught in pheromone traps were very low. More males were trapped near hop gardens typical for repeated harmful occurrence of the rosy rustic moth. Females trapped in a light trap from the second half of August to the last decade of September had already full-developed eggs in their ovaries.

scholarly journals Flight pattern of Archips podana (Lep.: Tortricidae) based on data from pheromone traps

2010 ◽  
Vol 40 (No. 3) ◽  
pp. 75-81
Author(s):  
J. Stará ◽  
F. Kocourek
Keyword(s):  
Czech Republic ◽  
Flight Activity ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Degree Days ◽  
Flight Pattern ◽  
The Czech Republic ◽  
Summer Generation ◽  
Richards Function

In 9 years of the period 1993–1999 and 2001–2003 the flight activity of <I>Archips podana</I> was investigated by pheromone traps placed in four apple orchards in Central and East Bohemia. The cumulative catches of <I>A. podana</I> males were plotted against time of the catch expressed in sum of degree-days (DD) above 10°C and approximated by Richards’ function. Common parameters of Richards’ function could be found for the overwintering generation of <I>A. podana</I> from all localities. The beginning, peak and end of flight activity of the overwintering generation of the <I>A. podana </I>population in Central and East Bohemia can be predicted by use of DD. <I>Archips podana </I>is usually bivoltine in the Czech Republic, rarely univoltine in cold years or cold localities. Construct the flight pattern of the summer generation could of <I>A. podana </I>not be constructed, because the course of flight of this generation in dependence on DD differed significantly in particular years and localities.

scholarly journals First records of Leptoglossus occidentalisdemann, 1910 (Heteroptera: Pentatomorpha: Coreidae) in the Czech Republic

2008 ◽  
Vol 43 (No. 4) ◽  
pp. 165-168 ◽  
Author(s):  
J. Beránek
Keyword(s):  
Czech Republic ◽  
North America ◽  
Insect Species ◽  
The Czech Republic ◽  
Coniferous Trees ◽  
Leptoglossus Occidentalis ◽  
Alien Insect ◽  
First Time

In the autumn of 2006 and summer 2007 the coreid species <I>Leptoglossus occidentalis</I> Heidemann, 1910 was detected in the Czech Republic for the first time as a new alien insect species. It is native to North America, where it causes important seed losses on coniferous trees, especially pines. From Europe it is known since the end of the last century, when it was introduced to Italy. Its repeated finding could indicate a vital population of this species in the Czech Republic, not only introduced individuals.

scholarly journals Contribution to identify the causal gents of Dutch elm disease in the Czech Republic

2008 ◽  
Vol 43 (No. 4) ◽  
pp. 142-145 ◽  
Author(s):  
M. Dvořák ◽  
M. Tomšovský ◽  
L. Jankovský ◽  
D. Novotný
Keyword(s):  
Czech Republic ◽  
North America ◽  
Molecular Biology ◽  
The Other ◽  
Dutch Elm Disease ◽  
The Czech Republic ◽  
Ophiostoma Ulmi ◽  
Other Hand ◽  
Subspecies Level ◽  
First Time

This study provides new data on Dutch elm disease in the Czech Republic. <I>Ophiostoma novo-ulmi</I> is reported for the first time in the area of the Czech Republic, as well as both subspecies ssp. <I>novo-ulmi</I> (indigenous in the area of the Ukraine and Moldavia), and ssp. <I>Americana</I> indigenous in North America. The majority of the recorded strains belonged to <I>O. n.-u.</I> ssp. <I>novo-ulmi</I>, while <I>O. n.-u.</I> ssp. <I>Americana</I> and hybrids of these two subspecies were found less frequently. On the other hand, <I>Ophiostoma ulmi</I> was not found at all in the investigated samples. Identification on the subspecies level was performed by methods of molecular biology, i.e. PCR and RFLP of gene regions<I> cu</I> and <I>col1</I>.

scholarly journals An Assortment of Woody Plants Produced in the Manor of Nové Dvory at the Turn of the 18th and 19th Centuries: North American Taxa

2019 ◽  
Vol 67 (4) ◽  
pp. 981-992 ◽  
Author(s):  
Miloš Pejchal ◽  
Lukáš Štefl
Keyword(s):  
Czech Republic ◽  
North America ◽  
North American ◽  
Woody Plants ◽  
Current Concept ◽  
The Czech Republic

The noble family of Chotek began with the realization of extensive landscaping in their manor of Nové Dvory at the end of the 18th century. Lists of woody plants produced for these purposes and for sale were preserved from the years 1794, 1800 and 1814. 276 taxa of foreign woody plants in the current concept, permanently cultivated outdoors, have been identified in all three lists at least to the level of the species. 91 taxa come from North America, with 81 being the first documented place of their presence in the territory of the Czech Republic. All North American taxa are natural, none of them originated in culture.

Flight patterns of Hedya dimidioalba, Spilonota ocellana and Pandemis heparana (Lep.: Tortricidae) based on data from pheromone traps

2001 ◽  
Vol 37 (No. 4) ◽  
pp. 129-137 ◽  
Author(s):  
J. Stará ◽  
F. Kocourek
Keyword(s):  
Czech Republic ◽  
Climatic Conditions ◽  
Flight Activity ◽  
Pheromone Traps ◽  
Apple Orchards ◽  
Degree Days ◽  
Flight Pattern ◽  
The Czech Republic ◽  
Richards Function ◽  
Pandemis Heparana

During 1992–1999 the flight activity of Hedya dimidioalba, Spilonota ocellana and Pandemis heparana was investigated by pheromone traps placed in six apple orchards and a plum orchard in Central and East Bohemia. The cumulative catches of each species were plotted against time of the catch expressed as the sum of degree-days above 10°C (H. dimidioalba and S. ocellana) and 8°C (P. heparana) and approximated by Richards’ function. Common parameters of Richards’ function could be found for Hedya dimidioalba and Spilonota ocellana from all localities. In Pandemis heparana the flight pattern was different for groups of localities with similar climatic conditions. It was found that the beginning, peak and end of the flight activity of these species in the Czech Republic can be reasonably predicted.

scholarly journals First records of the rhododendron leafhopper (Graphocephala fennahi) (Hemiptera: Auchenorrhyncha: Cicadellidae) from the Czech Republic

2010 ◽  
Vol 41 (No. 1) ◽  
pp. 38-41 ◽  
Author(s):  
P. Špryňar
Keyword(s):  
Czech Republic ◽  
Great Britain ◽  
North America ◽  
Blast Disease ◽  
Insect Species ◽  
The Czech Republic ◽  
City Area ◽  
Alien Insect ◽  
First Time

In summer and autumn of 2004 the cicadellid leafhopper species Graphocephala fennahi was detected in the Czech Republic for the first time as a new alien insect species feeding on Rhododendron. The species is native to North America and was introduced in the 1930’s to Great Britain and in the 1970’s to continental Europe, where its invasion and relationship to the rhododendron bud blast disease have been studied in detail. At present, the Czech populations of G. fennahi appear to be restricted to the Prague city area and near surroundings, but further spread of G. fennahi can be expected.

Trametes gibbosa (Basidiomycetes, Polyporales) in the USA and Canada

2007 ◽  
Vol 85 (3) ◽  
pp. 342-346 ◽  
Author(s):  
J. Kout ◽  
J. Vlasák
Keyword(s):  
United States ◽  
Czech Republic ◽  
North America ◽  
Mating Type ◽  
North American ◽  
Eastern North America ◽  
The Czech Republic ◽  
The North ◽  
The Usa ◽  
First Time

The polypore Trametes gibbosa (Pers.) Fries, common in Europe and Asia, is reported from eastern North America for the first time. Single basidiospore cultures from Pennsylvania, United States, and Quebec, Canada, were paired with each other and with cultures from the Czech Republic. The North American intercollection crosses were 60% compatible and 100% compatible with the Czech cultures. All the crosses among the Czech cultures were 100% compatible. The recent introduction of T. gibbosa to North America is suggested as a possible explanation for the limited number of mating-type alleles and subsequent incompatibility among the North American cultures.

Sign in / Sign up

Export Citation Format

Share Document