Plant Protection Science, 2015 (vol. 51), issue 3
Emergence of quarantine Tobacco ringspot virus in Impatiens walleriana in the Czech RepublicOriginal Paper
Jiban Kumar KUNDU, Sebastien GADIOU, Gabriela SCHLESINGEROVÁ, Miroslava DZIAKOVÁ, Václav ČERMÁK
Plant Protect. Sci., 2015, 51(3):115-123 | DOI: 10.17221/3/2015-PPS 
Tobacco ringspot virus (TRSV) is a quarantine pathogen in Europe. During an official inspection in November 2011, Impatiens walleriana plants showing symptoms were found in a nursery in the Czech Republic. The causal agent of the disease was detected as Nepovirus group A by RT-PCR using specific primers of the Nepovirus group. Sequence analysis of PCR fragments confirms that the detected virus is TRSV. TRSV detection in these plants was further confirmed by ELISA and one-step RT-PCR using specific primers. The coat protein (CP) gene of the Czech TRSV isolate was sequenced, and the sequence analysis showed high identity of both nucleotide...
Cucumber mosaic virus causal pathogen of oily spots on cucumber cv. Locale fruits in Mauritius - short communicationShort Communication
Kanta Kumar Lobin, Jiří Svoboda, Aleš Lebeda, Diana Yamini Dhooky, Shamduth Pandey Benimadhu
Plant Protect. Sci., 2015, 51(3):123-126 | DOI: 10.17221/9/2015-PPS
A field survey was carried out in cucumber plantations from different localities in Mauritius to identify the causal pathogen and assess incidence of oily spots on cucumber fruits cv. Locale. ELISA tests on symptomatic fruits showed the presence of CMV and ZYMV. The viruses from the genus Potyvirus PRSV and WMV-2 were not detected in the samples screened. Three types of symptoms were observed on infected cucumber fruits: distortion; distortion with oily spots, and oily spots. CMV was detected on fruits showing distortion with oily spots and those with oily spots only. ZYMV was detected in all fruits with distortion and not in those with oily...
Exogenous application of spermidine enhanced tolerance of pepper against Phytophthora capsici stressOriginal Paper
Esra KOÇ
Plant Protect. Sci., 2015, 51(3):127-135 | DOI: 10.17221/86/2014-PPS
The effect of exogenous spermidine - Spd (0.1 and 1 mM) on the relation between polyaminoxidase (PAO), diaminoxidase (DAO), H2O2, and malondialdehyde (MDA) in three cultivars of pepper (Capsicum annum L.) exhibiting different tolerance to P. capsici stress: KM-Hot (P. capsici-tolerant), PM-217 (P. capsici-resistant), and CM-334 (P. capsici-highly resistant) was investigated. The 0.1 mM Spd pre-treatment led to an increase in DAO activity on the third day in three pepper cultivars under the stress of P. capsici, 1 mM Spd + P. capsici led to an increase in DAO...
First report of Fusarium poae associated with and/or causing silvertop on loloid-type Festulolium in the Czech RepublicOriginal Paper
Jan NEDĚLNÍK, Miroslava STREJČKOVÁ, Tereza SABOLOVÁ, Bohumír CAGAŠ, Zdeněk BOTH, Jana PALICOVÁ, Bronislava HORTOVÁ
Plant Protect. Sci., 2015, 51(3):136-140 | DOI: 10.17221/19/2015-PPS
Silvertop is a serious disease of grasses, and severe infestations cause a great deal of damage every year (particularly to seed producers). Inflorescences of infected plants dry prematurely and are sterile. The genera Festuca, Poa, Agrostis, Trisetum, and Cynosurus are the most frequent hosts of this disease, which has newly been reported in a loloid-type intergeneric Festulolium hybrid. The disease was also observed in the genus Lolium, with only rare previous description. The suspicion that Fusarium poae is the causal agent of severe silvertop was confirmed, and the pathogen was morphologically described...
Distribution and population structure of the chestnut blight fungus in RomaniaOriginal Paper
Katarína ADAMČÍKOVÁ, Emília ONDRUŠKOVÁ, Miriam KÁDASI-HORÁKOVÁ, Mihai BOTU, Marek KOBZA, Gheorghe ACHIM
Plant Protect. Sci., 2015, 51(3):141-149 | DOI: 10.17221/52/2014-PPS
The occurrence of chestnut blight (Cryphonectria parasitica) was studied in 2011-2012 at 13 locations in the main chestnut growing areas of Romania. Infections were detected at four localities. The symptoms and the fungus were detected on European chestnut (four localities) and also on oak trees (two localities). A total of 89 isolates of C. parasitica were isolated and characterised. Based on canker and isolate morphology (culture morphology and the Bavendamm test), both virulent and hypovirulent samples were isolated; hypovirulent isolates were found at only one locality. Two vegetative compatibility types corresponding to EU-12...
Fraxinus sogdiana, a Central Asian ash species, is susceptible to Hymenoscyphus fraxineus Original Paper
Rein DRENKHAN, Kalev ADAMSON, Märt HANSO
Plant Protect. Sci., 2015, 51(3):150-152 | DOI: 10.17221/89/2014-PPS
Susceptibility of new host trees is an essential prerequisite for the alien pathogens. Today, an acute problem in Europe is ash dieback, caused by Hymenoscyphus fraxineus. Among the possible invasion routes of this fungus to Europe from its natural range in easternmost Asia, an arrival alongside the unbroken, passing the whole Eurasia chain of ranges of ash species should not be ignored, at least not before the determination of the western extent of the natural range of the pathogen. We established that in Estonia the ash species Fraxinus sogdiana, growing naturally in the "bottleneck" of that belt, in Central Asia, is susceptible...
The Currant Clearwing moth Synanthedon tipuliformis (Clerck, 1759) as a new pest for pawpaw (Asimina triloba L.) in Slovakia - short communicationShort Communication
Ján KOLLÁR, Ladislav BAKAY
Plant Protect. Sci., 2015, 51(3):153-155 | DOI: 10.17221/16/2015-PPS
At the locality Čebovce we found damage on Asimina triloba cv. Prima and Corylus avellana, which is not a typical host plant. 20% of branches on the host plant Asimina triloba cv. Prima were damaged by the Currant Clearwing moth larvae. The leaves on the infested branches started to wilt in mid-August.
Insecticidal activities of extracts of three lichen species on Sitophilus granarius (L.) (Coleoptera: Curculionidae)Original Paper
Bugrahan EMSEN, Erol YILDIRIM, Ali ASLAN
Plant Protect. Sci., 2015, 51(3):155-161 | DOI: 10.17221/101/2014-PPS
Four different concentrations of extracts obtained from three lichen species (Lecanora muralis (Schreb.) Rabenh., Letharia vulpina (L.) Hue, and Peltigera rufescens (Weiss) Humb) were tested against adults of Sitophilus granarius (L.) in Petri dishes. After treatments, mortalities of the adults were determined after 24, 48, and 96 h. Expectedly, higher concentration and longer exposure time resulted in higher S. granarius mortality. Mortalities 96 h after treatments with the highest concentration (20 mg/ml) of extracts of L. vulpina, P. rufescens, and L. muralis were determined...