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Occurrence of Oriental Chestnut Gall Wasp Dryocosmus kuriphilus in Slovakia – Short Communication
invasive pest Castanea sativa insect pest infestation
2018/3/5
During 2014–2016, damage by the oriental chestnut gall wasp Dryocosmus kuriphilus Yasumatsu (Hymenoptera, Cynipidae)
was found on sweet chestnut trees at 4 localities in Slovakia. Dryocosmus kuriphil...
Occurrence of Phytophthora multivora and Phytophthora plurivora in the Czech Republic
phytophthora disease forest trees
2015/3/10
Beginning in 2006, a survey of two related Phytophthora species, P. multivora and P. plurivora, was performed in the
Czech Republic. Both pathogens were distributed throughout a broad range of envir...
Occurrence of Peronospora dianthicola on Carnations in the Czech Republic
downy mildew visual symptoms Dianthus chinensis
2015/3/9
A downy mildew disease was observed on leaves of Dianthus chinensis L. cv. Scarlet in Brno in June 2011.
Characteristics of visual symptoms and microscopic features are described. The morphology of ...
Occurrence of Sclerotinia sclerotiorum (Lib) de Bary and Diaporthe (Phomopsis) helianthi Munt.-Cvet. et al. on Iva xanthiifolia Nutt. in Slovak Republic
Sclerotinia sclerotiorum Diaporthe (Phomopsis) helianthi
2015/3/6
The polyphagous pathogen Sclerotinia sclerotiorum (Lib) de Bary causes significant diseases of sunflower and
oil-seed rape while Diaporthe wilt, invoked by the pathogen Diaporthe (Phomopsis) heliant...
Influence of Intercropping with Spring Cereals on the Occurrence of Pea Aphids (Acyrthosiphon pisum Harris, 1776) and their Natural Enemies in Field Pea (Pisum sativum L.)
Acyrthosiphon pisum syrphid eggs syrphid larvae
2015/3/6
Occurrences of pea aphids and their natural enemies (syrphids, mummies caused by entomopathogenic fungi
Beauveria sp. and by the parasitic wasp Aphidius ervi) were compared in monocultures and mixtu...
Scarceness of Phytoseiid Species Co-occurrence (Acari: Phytoseiidae) on Leaflets of Juglans regia
cohabitation phytoseiid taxocoenoses competitive displacement
2015/3/5
In order to obtain information on the phytoseiid mite taxocoenoses, population density and frequency of occurrence on leaflets of Juglans regia, abandoned and uncultivated trees were sampled from July...
Impact of climate change on the occurrence and activity of harmful organisms
climate change impacts pests diseases temperature precipitation
2015/3/3
Climate conditions exert a significant influence over the spreading, life cycle duration, infestation pressure and the overall occurrence of majority of agricultural pests and diseases. Recently there...
Climate change and its possible influence on the occurrence and importance of insect pests
climate change insect pests Czech Republic
2015/3/3
Insect pests, as widely tolerant and adaptable organisms, may be less distinctly affected by climate change than other insect species. The changing climate may affect the occurrence and impact of the ...
Occurrence of Anamorphic and Teleomorphic Stage of Erysiphe palczewskii (syn. Microsphaera palczewskii) on Caragana arborescens in the Czech Republic and Austria and its Morphological Characterisation
Ampelomyces quisqualis Caragana arborescens
2015/3/2
During the summer of 2007 in a private garden in Smržice (district Prostějov, Czech Republic) symptoms of powdery
mildew on Caragana arborescens were recorded
Occurrence of Predatory Mites of the Phytoseiidae Family on Apple-Trees in Integrated and Ecological Orchards
predatory mites Phytoseiidae integratedand ecologicalorchards
2015/3/2
During the 2005–2007, we identified six species of predatory mites in the integrated and an ecological orchard:
Phytoseius echinus, Phytoseius macropilis, Euseius finlandicus, Typhlodromus pyri, Par...
Changes in the occurrence of mycoflora on caraway seeds after fungicide application
caraway fungal diseases fungicides
2015/3/1
The spectrum of diseases and their harmfulness to caraway has changed within the past few years. The importance of Mycocentrospora acerina, recently regarded as the most serious pathogen, has decrease...
Some notes on the occurrence of plant parasitic nematodes of fruit trees in Slovakia
plant parasitic nematodes fruit orchards Slovakia
2015/3/1
Forty plant parasitic nematode species were identified in soil of fruit orchards in the southeastern and southwestern areas of the Danubian Lowlands and East Slovak Lowland, characterised by light san...
Occurrence and distribution of mating types A1 and A2 of Phytophthora infestans (Mont.) de Bary in the Czech Republic
potato late blight mating types PCR CAPs
2015/2/6
A total of 199 Phytophthora infestans isolates were obtained from leaves, tubers and fruits of infected crops of potato and tomato in different regions of the Czech Republic in 2003, 2004 and 2005. Th...
Occurrence of biotic harmful agents in Czech grass seed production (1995–2004)
grass seed weeds diseases pests external conditions
2015/2/6
In the years 1995–2004 the spectra of weeds, diseases and pests in grasses grown for seed in the Czech Republic were examined and the effect of external factors on their changes was assessed. The spec...
Harmful occurrence of Rosy rustic moth (Hydraecia micacea) (Noctuidae: Lepidoptera) on hop in the Czech Republic
hatching of caterpillars weeds parasitoids harmfulness monitoring antagonist
2015/2/2
The Rosy rustic moth (Hydraecia micacea) 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 (Elytrigia repens) on waterlog...