Plant Protection Science, 2008 (vol. 44), issue 2
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
Aleš Lebeda, Barbora Mieslerová, Michaela Sedlářová, Miloš Pejchal
Plant Protect. Sci., 2008, 44(2):41-48 | DOI: 10.17221/20/2008-PPS 
During the summer of 2007 in a private garden in Smržice (district Prostějov, Czech Republic) symptoms of powdery mildew on Caragana arborescens were recorded. Until now at least two powdery mildew species (Microsphaera trifolii var. trifolii and M. palczewskii), both differing in some basic morphological features, have been recorded for the genus Caragana. Comparison of our measurements with previous descriptions of powdery mildew samples found in the Czech Republic on Caragana arborescens identified our species as Microsphaera palczewskii (newly Erysiphe palczewskii). This is...
Comparison of two mapping methods of potential distribution of pests under present and changed climate
Eva KOCMÁNKOVÁ, Miroslav TRNKA, Zdeněk ŽALUD, Daniela SEMERÁDOVÁ, Martin DUBROVSKÝ, František MUŠKA, Martin MOŽNÝ
Plant Protect. Sci., 2008, 44(2):49-56 | DOI: 10.17221/532-PPS
The study compares two methods for modeling the potential distribution of pests when applied to the European corn borer (Ostrinia nubilalisHubner). The development of the European corn borer (ECB) is known to be closely correlated with daily air temperature as well as other climate variables. The climatic parameters are, therefore, used to predict the potential geographical distribution using tested tools such as CLIMEX or ECAMON. These models consider the climatic suitability of a given site/region for the pest's development and, thus, the possible establishment of a population at a given location. In this study, meteorological data from...
Occurrence of predatory mites of the Phytoseiidae family on apple-trees in integrated and ecological orchards
Ján Praslička, Andrea Barteková
Plant Protect. Sci., 2008, 44(2):57-60 | DOI: 10.17221/7/2008-PPS
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, Paraseiulus triporus and Amblyseius andersoni. The species Phytoseius echinus, Euseius finlandicus and Typhlodromus pyri occurred in both orchards. Phytoseius echinus was dominant especially in the ecological orchard, where its abundance was almost 60% of the overall number of detected mites. The number of all predatory mites differed considerably in the orchards; there...
Control by seed dressing of leaf weevils of the genus Sitona (Col.: Curculionidae) feeding on sprouting alfalfa
Jiří ROTREKL, Jiří CEJTCHAML
Plant Protect. Sci., 2008, 44(2):61-68 | DOI: 10.17221/1269-PPS
In tests with artificial infestation of alfalfa by leaf weevils in the greenhouse and also in small-plot trials with natural infestation of sprouting alfalfa it was found that without protection alfalfa is seriously damaged by leaf weevil feeding. After evaluation of the feeding damage by weevils, the damage to plants in the untreated plot was classed as 3rd, 4th and 5th degree on a five-level scale. Plant growth was seriously restricted and in warm and dry weather plants may die. The results demonstrate that in both kinds of trials the pre-sowing treatment of alfalfa seed significantly reduces the feeding of leaf weevils...
Efficacy of Bacillus thuringiensis, mineral oil, insecticidal emulsion and insecticidal gel against Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae)
Behnam Amiri-Besheli
Plant Protect. Sci., 2008, 44(2):69-73 | DOI: 10.17221/531-PPS
The efficacy of Bacillus thuringiensis, mineral oil, insecticidal emulsion (garlic extract, plant detergent soap and food additive) and insecticidal gel (plant oil and plant extracts) to control the citrus leafminer, Phyllocnistis citrella, was examined in laboratory conditions 24, 48, 72 and 96 h after treatments. Leaves of citrus with second and third instars of leafminer larvae were used in all experimental tests. There were significant differences in larvae mortality between control and treatments (P < 0.0001), but no significant differences were found among treatments. Larvae mortality (%) in IE, IG, BT and MO was...
Bailey M.J., Lilley A.K., Timms-Wilson T.M., Spencer-Phillips P.T.N. (eds) - Microbial Ecology of Aerial Plant Surfaces - Book review
Aleš Lebeda, Barbora Mieslerová
Plant Protect. Sci., 2008, 44(2):75-76 | DOI: 10.17221/17/2008-PPS
Bojňanský V., Fargašová A. - Atlas of Seeds and Fruits of Central and East-European Flora The Carpathian Mountains Region - Book review
A. Lebeda
Plant Protect. Sci., 2008, 44(2):77-78 | DOI: 10.17221/18/2008-PPS
Master N., Ford-Lloyd B.V., Kell S.P., Iriondo J.M., Dulloo M.E., Turok J.: Crop Wild Relative Conservation and Use - Book review
Aleš Lebeda
Plant Protect. Sci., 2008, 44(2):79-80 | DOI: 10.17221/529-PPS