Plant Protection Science, 2008 (vol. 44), issue 4
Index of Volume 44 (2008), Authors Index, Authors Institution Index, List of Reviewers, Subject IndexIndex
editors
Plant Protect. Sci., 2008, 44(4):I-VII | DOI: 10.17221/2360-PPS
Genetic and biological characterisation of a Grapevine virus A isolate from the Czech Republic
Petr KOMÍNEK, Marcela KOMÍNKOVÁ
Plant Protect. Sci., 2008, 44(4):121-126 | DOI: 10.17221/24/2008-PPS
An isolate of Grapevine virus A (GVA) from the Czech Republic was obtained from the grapevine cultivar Müller Thurgau. Symptoms of GVA - Kober stem grooving disease were not observed in the infected grapevines (which had been grafted onto Kober 5BB rootstock). A partial genomic sequence of the GVA isolate, 1523 nucleotides long, was obtained. The sequence completely covers the genes for both a movement and a coat protein. Compared to the GVA sequences available in databases, the nucleotide identity reached 84%. The amino acid identity in the movement protein reached 88%, and 98% in the coat protein.
The incidence and spreading of Macrophomina phaseolina(Tassi) Goidanovich on sunflower in the Czech Republic
Karel Veverka, Jana Palicová, Iva Křížková
Plant Protect. Sci., 2008, 44(4):127-137 | DOI: 10.17221/31/2008-PPS
VEVERKA K., PALICOVÁ J., KŘÍŽKOVÁ I. (2008): . Plant Protect. Sci., 44: 127-137. The warm climate pathogen Macrophomina phaseolina (Tassi) Goid., which causes charcoal disease, has been reported in the Czech Republic since 1999. The aim of our work was to study the incidence of disease between 2000-2007 in the main sunflower growing regions and analyse the relationship between weather conditions and the occurrence of the pathogen. The first and highest incidence of disease was in the Žatec region. However, in the region south of Brno there was no disease in 2000, 2001 and 2003, and only individual low incidence in other years until 2007, when...
Correlation between black point symptoms and fungal infestation and seedling viability of wheat kernels
Kamil HUDEC, Darina MUCHOVá
Plant Protect. Sci., 2008, 44(4):138-146 | DOI: 10.17221/14/2008-PPS
The level of occurrence of black point, the spectrum of fungal species and damage to wheat seedling vigour associated with it were assessed during 2003 and 2004 in the Slovak Republic. The incidence of black point kernels ranged between 0.2-2.4% in 2003 and 24.2-34.3% in 2004. The kernels' fungal contamination varied from 60% to 100%. Alternaria spp., F. poae and F. culmorum were isolated from all localities and all subsamples. Stemphylium vesicarium, Fusarium culmorum, F. graminearum, F. avenaceum, F. sporotrichioides, Microdochium nivale, Epicoccum nigrum, Penicillium...
Effect of bio-rational insecticides on some biological aspects of the Egyptian cotton leafworm Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae)
Mohamed A. M. Osman, Mahmoud Farag Mahmoud
Plant Protect. Sci., 2008, 44(4):147-154 | DOI: 10.17221/2362-PPS
The bio-rational insecticides Dipel 2x, BioFly, Agrin, BioGuard, Spinosad, Neemix, Mectin and Match were tested for their effect on 1st, 3rd and 5th instar larvae and egg masses (24, 48 and 72 h old) of the Egyptian cotton leafworm Spodoptera littoralis under laboratory conditions. The doses used were the recommended dose, half of the recommended dose and quarter of the recommended dose. All insecticides caused higher mortality in the 1st than in the 3rd and 5th larval stage, although Match, Mectin and Spinosad at all tested concentrations showed excellent efficacy against the 3rd...
First interception of the greenhouse pest Echinothrips americanus Morgan, 1913 (Thysanoptera: Thripidae) in Slovakia
Lukáš VARGA, Peter J. FEDOR
Plant Protect. Sci., 2008, 44(4):155-159 | DOI: 10.17221/29/2008-PPS
Echinothrips americanus Morgan, 1913, is one of the pest species that expanded their area of distribution in a relatively short time. Being native to the eastern parts of North America, its first European interception was recorded in 1989. Since then it has invaded greenhouses in most European countries, including Slovakia, where it was first recorded in inspected material at the Botanical garden in Košice. As a polyphagous thrips with a wide host range it may induce damage mainly on ornamentals, although if low in numbers it can be easily overlooked. The species is a suitable example where preventive steps against its spread have not been...