Template-Type: ReDIF-Article 1.0 Author-Name: Aleš Lebeda Author-Workplace-Name: Department of Botany, Faculty of Science, Palacký University in Olomouc, Olomouc-Holice, Czech Republic Author-Name: Barbora Mieslerová Author-Workplace-Name: Department of Botany, Faculty of Science, Palacký University in Olomouc, Olomouc-Holice, Czech Republic Author-Name: Michaela Sedlářová Author-Workplace-Name: Department of Botany, Faculty of Science, Palacký University in Olomouc, Olomouc-Holice, Czech Republic Author-Name: Miloš Pejchal Author-Workplace-Name: Department of Planting Design and Maintenance, Faculty of Horticulture, Mendel University of Agriculture and Forestry in Brno, Lednice, Czech Republic Title: 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 Abstract: 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 probably the first detailed record of this species on C. arborescens in the Czech Republic. Fungus from Czech Republic was compared with the material collected in 2007 in Vienna (Austria). The aim of this paper was to provide a detailed comparative morphological characterisation of E. palczewskii anamorph and teleomorph found in the Czech Republic and in Austria. Serious reduction of the anamorph, caused by hyperparasitic fungus Ampelomyces quisqualis, was recorded on the sample from Austria. Keywords: Ampelomyces quisqualis, Caragana arborescens, chasmothecia, conidia, Erysiphe palczewskii, Microsphaera trifolii var. trifolii, Siberian pea-shrub Journal: Plant Protection Science Pages: 41-48 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/20/2008-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/20/2008-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200802-0001.txt Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:20-2008-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Eva KOCMÁNKOVÁ Author-Workplace-Name: Institute for Agrosystems and Bioclimatology, Mendel University of Agriculture and Forestry in Brno, Czech Republic Author-Name: Miroslav TRNKA Author-Workplace-Name: Institute for Agrosystems and Bioclimatology, Mendel University of Agriculture and Forestry in Brno, Czech Republic Author-Name: Zdeněk ŽALUD Author-Workplace-Name: Institute for Agrosystems and Bioclimatology, Mendel University of Agriculture and Forestry in Brno, Czech Republic Author-Name: Daniela SEMERÁDOVÁ Author-Workplace-Name: Institute for Agrosystems and Bioclimatology, Mendel University of Agriculture and Forestry in Brno, Czech Republic Author-Name: Martin DUBROVSKÝ Author-Workplace-Name: Institute of Atmospheric Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic Author-Name: František MUŠKA Author-Workplace-Name: State Phytosanitary Authority, Brno, Czech Republic Author-Name: Martin MOŽNÝ Author-Workplace-Name: Czech Hydrometeorological Institute, Doksany Observatory, Czech Republic Title: Comparison of two mapping methods of potential distribution of pests under present and changed climate Abstract: 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 1961 to 2000 and from 45 meteorological stations were used to characterise the current climate conditions in the Czech Republic. Validation was based on available field data of the occurrence of ECB in the same period. The climate parameters were later modified according to the estimates based on the combination of three SRES emission scenarios and three global circulation models. Under all climate change scenarios, we noted a marked shift of the pest's potential niches to higher altitudes, which might lead to an increase in the infestation pressure during the first half of this century. The present area of the univoltine population will increase due to temperature increases even above 800 m a.s.l. In addition there is a risk of the establishment of a bivoltine population in the main agricultural areas and 38% of arable land in the Czech Republic before 2050. Keywords: Ostrinia nubilalis, ECB, ECAMON, CLIMEX, geographical distribution, climate change, climate niche Journal: Plant Protection Science Pages: 49-56 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/532-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/532-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200802-0002.txt Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:532-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Ján Praslička Author-Workplace-Name: Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Slovak Republic Author-Name: Andrea Barteková Author-Workplace-Name: Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Slovak Republic Title: Occurrence of predatory mites of the Phytoseiidae family on apple-trees in integrated and ecological orchards Abstract: 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 was a higher abundance in the ecological orchard. Euseius finlandicus abundance was 38.32% in the integrated orchard and almost 17.61% in the ecological orchard. Typhlodromus pyri abundance was 17.96% in the integrated orchard and 13.63% in the ecological orchard. Paraseiulus triporus, Amblyseius andersoni and Phytoseius macropilis were less abundant. Keywords: predatory mites, Phytoseiidae, integrated and ecological orchards, apple-tree Journal: Plant Protection Science Pages: 57-60 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/7/2008-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/7/2008-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200802-0003.txt Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:7-2008-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Jiří ROTREKL Author-Workplace-Name: Department of Plant Protection, Research Institute for Fodder Crops, Ltd. Troubsko, Troubsko, Czech Republic Author-Name: Jiří CEJTCHAML Author-Workplace-Name: Department of Plant Protection, Research Institute for Fodder Crops, Ltd. Troubsko, Troubsko, Czech Republic Title: Control by seed dressing of leaf weevils of the genus Sitona (Col.: Curculionidae) feeding on sprouting alfalfa Abstract: 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 on sprouting alfalfa. No negative effects of insecticidal seed dressing on germination energy and germination were observed. On the basis of the three-year trials, the dressing insecticides Cruiser 350 FS (active ingredient thiamethoxan) and Elado 480 FS (active ingredients beta-cyfluthrin and clothianidin), both at a dose of 20 l/t, can be recommended as an effective method to protect alfalfa against leaf weevils. Keywords: alfalfa, Sitona spp., feeding of leaf weevils, artificial infestation, insecticidal seed dressing Journal: Plant Protection Science Pages: 61-68 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/1269-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/1269-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200802-0004.txt Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:1269-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Behnam Amiri-Besheli Author-Workplace-Name: College of Agriculture Sciences, University of Mazandaran, Sari, Iran Title: Efficacy of Bacillus thuringiensis, mineral oil, insecticidal emulsion and insecticidal gel against Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) Abstract: 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 67.83 ± 9.10, 62.45 ± 8.10, 49.08 ± 6.70 and 37.70 ± 8.50, respectively. The levels of mortality of larvae 96 and 72 h after treatments were higher than after 48 and 24 hours. The results indicate that 3 days is the maximum period of efficacy for all tested insecticides. In conclusion, the present study showed that under heavy infestation, use of synthetic insecticides is necessary to prevent reinfestation by the citrus leafminer. Keywords: Phyllocnistis citrella, Bacillus thuringiensis, mineral oil, insecticidal emulsion, insecticidal gel, bioassay Journal: Plant Protection Science Pages: 69-73 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/531-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/531-PPS.html File-Format: text/html X-File-Ref: http://agriculturejournals.cz/RePEc/caa/references/pps-200802-0005.txt Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:531-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Aleš Lebeda Author-Name: Barbora Mieslerová Title: Bailey M.J., Lilley A.K., Timms-Wilson T.M., Spencer-Phillips P.T.N. (eds) - Microbial Ecology of Aerial Plant Surfaces - Book review Journal: Plant Protection Science Pages: 75-76 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/17/2008-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/17/2008-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:17-2008-PPS Template-Type: ReDIF-Article 1.0 Author-Name: A. Lebeda Title: Bojňanský V., Fargašová A. - Atlas of Seeds and Fruits of Central and East-European Flora The Carpathian Mountains Region - Book review Journal: Plant Protection Science Pages: 77-78 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/18/2008-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/18/2008-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:18-2008-PPS Template-Type: ReDIF-Article 1.0 Author-Name: Aleš Lebeda Title: 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 Journal: Plant Protection Science Pages: 79-80 Volume: 44 Issue: 2 Year: 2008 DOI: 10.17221/529-PPS File-URL: http://pps.agriculturejournals.cz/doi/10.17221/529-PPS.html File-Format: text/html Handle: RePEc:caa:jnlpps:v:44:y:2008:i:2:id:529-PPS