Changes in resistance development in pollen beetle (Brassicogethes aeneus F.) to lambda-cyhalothrin, etofenprox, chlorpyrifos-ethyl, and thiacloprid in the Czech Republic during 2013–2017

2020 ◽  
Vol 135 ◽  
pp. 105224
Author(s):  
Tomáš Spitzer ◽  
Jan Bílovský ◽  
Pavel Matušinsky
Keyword(s):  
Czech Republic ◽  
Resistance Development ◽  
The Czech Republic ◽  
Pollen Beetle ◽  
Brassicogethes Aeneus ◽  
Lambda Cyhalothrin ◽  
Chlorpyrifos Ethyl

scholarly journals Ovicidal effects of thiacloprid, acetamiprid, lambda-cyhalothrin and alpha-cypermethrin on Bruchus pisorum L. (Coleoptera: Chrysomelidae) eggs

2011 ◽  
Vol 47 (No. 3) ◽  
pp. 109-114 ◽  
Author(s):  
M. Seidenglanz ◽  
J. Rotrekl ◽  
J. Poslušná ◽  
P. Kolařík
Keyword(s):  
Czech Republic ◽  
Field Conditions ◽  
Egg Survival ◽  
The Czech Republic ◽  
Real Effects ◽  
First Instar ◽  
Lambda Cyhalothrin ◽  
Ovicidal Effects ◽  
Bruchus Pisorum

The effects of two pyrethroid (lambda-cyhalothrin, alpha-cypermethrin) and two neonicotinoid (acetamiprid, thiacloprid) insecticides on B. pisorum L. eggs were compared under field conditions in the Czech Republic in 2005–2007. The main objective of the study was to find out what real effects can be expected from the available insecticides registered in Europe when applied at the time of the first egg occurrence on lower pods. In general, the rates of Bruchus pisorum egg (+ first instar larvae) survival were significantly lower with all the insecticides compared in the study, in each of the three years (2005, 2006, 2007). The tested insecticides showed some ovicidal effects and also some larvicidal effects. The tested pyrethroids (lambda-cyhalothrin, alpha-cypermethrin) showed somewhat higher effectiveness in comparison with the neonicotinoids (acetamiprid, thiacloprid). Alpha-cypermethrin was the most effective in all three years. In 2006 and in 2007 this insecticide significantly reduced the rates of egg survival in comparison with acetamiprid. In contrast, acetamiprid was the least effective insecticide in each of the three years.

scholarly journals Resistance behaviour of Septoria tritici to some fungicides in the territory of the Czech Republic

2012 ◽  
Vol 58 (1) ◽  
pp. 79-84 ◽  
Author(s):  
Ludvik Tvaružek ◽  
P. Horáková ◽  
L. Ji
Keyword(s):  
Czech Republic ◽  
Septoria Tritici ◽  
Resistance Development ◽  
The Czech Republic ◽  
Colony Diameter ◽  
Dmi Fungicides ◽  
The Mean ◽  
Different Parts ◽  
Pathogen Strains

Reduction of colony diameter using two DMI-fungicides and one strobilurine fungicide was evaluated in the <i>Septoria tritici</i> population. In an <i>in vitro</i> assay, 57 strains of <i>S. tritici</i> originating from different parts of the Czech Republic were grown on agar plates containing different concentrations of fungicides. The mean EC<sub>50</sub> values of strains were analysed for flusilazole (Capitain), metconazole (Caramba) and one strobilurine fungicide: azoxystrobin (Amistar). ED 50 values for metconazole were low. There were highly significant correlation in reaction of pathogen strains to metconazole and flusilazole. Some isolates showed significant higher level of resistance to azoxystrobin. The data will be used in a continuing survey of resistance development in the <i>S. tritici</i> population originating from the territory of the Czech Republic.

scholarly journals Meligethes aeneus (Coleoptera: Nitidulidae) resistance to lambda-cyhalothrin in the Czech Republic in 2012 and 2013

2016 ◽  
Vol 51 (No. 2) ◽  
pp. 94-107 ◽  
Author(s):  
M. Seidenglanz ◽  
J. Poslušná ◽  
J. Rotrekl ◽  
P. Kolařík ◽  
E. Hrudová ◽  
...  
Keyword(s):  
Czech Republic ◽  
Meligethes Aeneus ◽  
The Czech Republic ◽  
Lambda Cyhalothrin

scholarly journals Negative correlations between the susceptibilities of Czech and Slovak pollen beetle populations to lambda-cyhalothrin and chlorpyrifos-ethyl in 2014 and 2015

2017 ◽  
Vol 53 (No. 2) ◽  
pp. 108-117 ◽  
Author(s):  
Seidenglanz Marek ◽  
Poslušná Jana ◽  
Kolařík Pavel ◽  
Rotrekl Jiří ◽  
Hrudová Eva ◽  
...  
Keyword(s):  
Insecticide Resistance ◽  
Pyrethroid Resistance ◽  
Pollen Beetle ◽  
Correlation Analyses ◽  
Action Committee ◽  
Lambda Cyhalothrin ◽  
Chlorpyrifos Ethyl

Sixty-five Czech Meligethes populations were tested against lambda-cyhalothrin and chlorpyrifos-ethyl in 2014. In 2015, totally sixty Meligethes populations, some of which sampled also in Slovakia, were tested against the two insecticides. Adult vial tests by IRAC (Insecticide Resistance Action Committee) were used for testing (No. 011 v. 3 for lambda-cyhalothrin and No. 025 for chlorpyrifos-ethyl). For each of the tested populations the LC<sub>50</sub>, LC<sub>90</sub>, and in 2015 also LC<sub>95</sub> values were determined for both these insecticides. Correlation analyses were made with transformed (log10 transformation) LC values. No significant correlation was recorded between the LC<sub>50</sub> values. Contrary to that, significant (P &lt; 0.05) negative (r values for negative) correlations were recorded between the LC<sub>90</sub> and LC<sub>95</sub> values. Pyrethroid resistance in pollen beetle populations should indicate their slightly higher susceptibility to chlorpyrifos-ethyl.

scholarly journals Changes in Meligethesaeneus (Coleoptera: Nitidulidae) susceptibility to lambda-cyhalothrin in the Czech Republic between 2009 and 2011

2016 ◽  
Vol 51 (No. 1) ◽  
pp. 13-32 ◽  
Author(s):  
M. Seidenglanz ◽  
J. Poslušná ◽  
J. Rotrekl ◽  
P. Kolařík ◽  
E. Hrudová ◽  
...  
Keyword(s):  
Czech Republic ◽  
The Czech Republic ◽  
Lambda Cyhalothrin

scholarly journals Influence of application term on effectiveness of some insecticides against brassica pod midge (Dasineura brassicae Winn.)

2008 ◽  
Vol 43 (No. 2) ◽  
pp. 57-62 ◽  
Author(s):  
R. Pavela ◽  
J. Kazda ◽  
G. Herda
Keyword(s):  
Czech Republic ◽  
Oilseed Rape ◽  
Winter Oilseed Rape ◽  
The Czech Republic ◽  
Lambda Cyhalothrin ◽  
Full Flowering ◽  
Dasineura Brassicae

In 2005 we determined the effectiveness of two preparations against gall pod midge in dependence on different terms of application, i.e. at full flowering (BBCH 65) and after flowering (BBCH 67) of winter oilseed rape. The tests were carried out at three localities in the Czech Republic, and the two preparations used were Calypso 480 SC (a.i. thiacloprid) and Karate Zeon 5CS (a.i. lambda-cyhalothrin). It was found that applying the preparations at BBCH 67 was significantly more effective than treatment at BBCH 65.

Social variation in size at birth and preterm delivery in the Czech Republic and Sweden, 1989-91

1998 ◽  
Vol 12 (1) ◽  
pp. 7-24 ◽  
Author(s):  
Koupilova ◽  
Vagero ◽  
Leon ◽  
Pikhart ◽  
Prikazsky ◽  
...  
Keyword(s):  
Czech Republic ◽  
Preterm Delivery ◽  
The Czech Republic ◽  
Social Variation ◽  
Size At Birth

On Geropsychology in the Czech Republic

GeroPsych ◽  
2012 ◽  
Vol 25 (3) ◽  
pp. 161-166
Author(s):  
Hana Stepankova ◽  
Eva Jarolimova ◽  
Eva Dragomirecka ◽  
Irena Sobotkova ◽  
Lenka Sulova ◽  
...  
Keyword(s):  
Czech Republic ◽  
Clinical Practice ◽  
Old Age ◽  
Cognitive Rehabilitation ◽  
The Czech Republic ◽  
Rehabilitation Research

This work provides an overview of psychology of aging and old age in the Czech Republic. Historical roots as well as recent activities are listed including clinical practice, cognitive rehabilitation, research, and the teaching of geropsychology.

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