Plant Protection Science, 2016 (vol. 52), issue 2
Clubroot caused by Plasmodiophora brassicae Wor.: a review of emerging serious disease of oilseed rape in the Czech RepublicReview
Veronika Řičařová, Jan Kazda, Khushwant Singh, Pavel Ryšánek
Plant Protect. Sci., 2016, 52(2):71-86 | DOI: 10.17221/87/2015-PPS 
Winter oilseed rape is the second most frequently grown crop in the Czech Republic. Clubroot, caused by Plasmodiophora brassicae (Wor.), was previously a problem in production of vegetable. The disease has been spreading on winter rape (Brassica napus L.) over the past four years. Infected stands were reported throughout the country in autumn 2011. The pathogen is probably widely spread in the whole country, its incidence depends on suitable weather conditions. Every field with clubroot is considered as contaminated for many years. The amounts of inoculum and its distribution are not sufficient yet, but this is just the initial stage...
Management strategies for western flower thrips in vegetable greenhouses in Iran: a reviewReview
Zahra GHOLAMI, Amin SADEGHI
Plant Protect. Sci., 2016, 52(2):87-98 | DOI: 10.17221/2/2015-PPS
Chemical, biological, cultural, and mechanical controls are the main strategies of the Integrated Pest Management program for F. occidentalis. The insecticides play an important role in the western flower thrips, Frankliniella occidentalis Pergande (Thysanoptera: Thripidae), management. Spinosad, pyridalyl, and botanical insecticides such as oxymatrine and azadirachtin are new and effective insecticides for the control of F. occidentalis. The best control finally is possible when all of the strategies are used together. Awareness on integrated pest management strategies can improve the integrated pest management strategies.
Varied expression pattern of the small heat shock protein gene encoding HSP17.7 against UVA, UVB, Cu2+ and Zn2+ stresses in sunflowerOriginal Paper
Ilker Büyük, Sümer Aras, Demet Cansaran-Duman
Plant Protect. Sci., 2016, 52(2):99-106 | DOI: 10.17221/125/2015-PPS
Today, one of the main objectives of agricultural biotechnology area is to find the responsible genes involved in stress response and engineering these genes to improve the plant response mechanisms. Therefore the current study was conducted to gain an insight on the role of HSP17.7 gene, which is a member of sHsps family, in defence mechanism of sunflower (Helianthus annuus L. cv. Confeta -Turkish cultivar) treated with different doses of UVA and UVB (4, 8, 12 and 20 kJ/m2) and concentrations of copper (Cu2+) and zinc (Zn2+) (80, 160, 320, 640, and 1280 µM) heavy metals. Based on our data, it was observed...
Effect of gamma irradiation on Pseudomonas syringae pv. tomato DC3000 - short communicationShort Communication
Rae-Dong Jeong, Eun-Hee Chu, Gun Woong Lee, Jeong Mee Park, Hae-Jun Park
Plant Protect. Sci., 2016, 52(2):107-112 | DOI: 10.17221/68/2015-PPS
Gamma irradiation (GI) was evaluated for its in vitro and in vivo antibacterial activity against bacterial specks of tomato, Pseudomonas syringae pv. tomato (Pst). GI showed complete inactivation of Pst DC3000, especially at a dose of 200 Gy in vitro. Gamma-irradiated bacterial cells were found to (1) have spilled cytoplasmic contents, (2) display a damage on the surface of the cells, (3) have reduced membrane integrity, and (4) have fragmented genomic DNA, all in a dose-dependent manner. Consistent with the in vitro assay, a low dose of 150 Gy showed sufficient antibacterial activity...
Medicinal plant extracts and protein kinase C inhibitor suppress zoosporogenesis and impair motility of Phytophthora capsici zoosporesOriginal Paper
Most Waheda Rahman Ansary, Effi Haque, M. Helen West, Mahbubur M. Rahman, Abdul Mannan Akanda, Yuanchao Wang, M. Tofazzal Islam
Plant Protect. Sci., 2016, 52(2):113-122 | DOI: 10.17221/103/2015-PPS
The effects of water and acetone extracts from 100 medicinal plants growing in Bangladesh, along with a selective inhibitor of protein kinase C (PKC), chelerythrine chloride, were tested on zoosporogenesis (release of zoospores from the sporangia) and motility of Phytophthora capsici zoospores. Among 10 active crude acetone extracts, those from Psidium guajava and Nigella sativa (100 μg/ml) suppressed zoosporogenesis relative to the control (100% zoospore release) to 60 and 40% released, respectively and inhibited motility of 100% of the zoospores within 60 min of treatment. Chelerythrine chloride also suppressed zoosporogenesis...
Heritability of powdery mildew and scab resistance within apple progeniesOriginal Paper
Jan Blažek, Lubor Zelený, Jana Křelinová
Plant Protect. Sci., 2016, 52(2):123-127 | DOI: 10.17221/130/2015-PPS
The occurrence of both diseases was evaluated for four years in a selected orchard where 22 different apple progenies, totalling 699 seedlings were planted. During this period, no chemical protection against the diseases was applied in the orchard, and the incidence of the diseases was rated using a 9-point scale (from 9 = not infected to 1 = very highly infected). For the finalisation of the results, each seedling was characterised by the highest rate of infection from all four years of the evaluation. The lowest mean level of mildew infection equal to 7.47 was observed in the progeny of Resista × McIntosh Wijcik. Concerning the scab, the best was...
Susceptibility of field and laboratory strains of Cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) to spinosad pesticide under laboratory conditionsOriginal Paper
Mohamed Ahmed Ibrahim Ahmed, Sobhy Ahmed Hasan Temerak, Farouk Abdel-Kawi Abdel-Galil, Samir Hasan Mohamed Manna
Plant Protect. Sci., 2016, 52(2):128-133 | DOI: 10.17221/5/2015-PPS
The susceptibility of field and laboratory strains against all instars larvae of S. littoralis to spinosad pesticide after a 24- and 48-h exposure and under laboratory conditions was investigated. As a result against 1st instar larvae, the LC50 values after 24 h were 12 and 0.275 µg/ml for laboratory and field strain, respectively. In addition, the resistance ratio (RR) of 1st instar was 43.64-fold. In this interim, the 48 h LC50 values were 8.7 and 0.18 µg/ml for laboratory and field strain, respectively and the RR was 48.33-fold, which revealed the field strain was more susceptible to...
Comparative efficacy of classical and biorational insecticides on sugar beet weevil, Bothynoderes punctiventris Germar (Coleoptera: Curculionidae)Original Paper
Renata Bažok, Mihaela Šatvar, Ivan Radoš, Zrinka Drmić, Darija Lemić, Maja Čačija, Helena Virić Gašparić
Plant Protect. Sci., 2016, 52(2):134-141 | DOI: 10.17221/86/2015-PPS
The contact and ingestion activity and the potential of the insecticide spinosad for the control of sugar beet weevil were evaluated and compared with commercially used insecticides lambda-cyhalothrin and chlorpyriphos + cypermethrin. Results of three laboratory trials proved very good efficacy of spinosad applied at the dose of 72 g a.i./ha. Its efficacy was similar to chlorpyriphos + cypermethrin and significantly higher than that of lambda-cyhalothrin. Due to its favourable eco-toxicological properties and good ingestion activity, spinosad is a good candidate to be introduced in the integrated pest management strategy against beet weevil.
The first record of tulip tree aphid, Illinoia liriodendri (Hemiptera: Aphididae), from Slovakia - short communicationShort Communication
Ján KOLLÁR, Marek BARTA
Plant Protect. Sci., 2016, 52(2):142-146 | DOI: 10.17221/109/2015-PPS
The tulip tree aphid, Illinoia liriodendri, is reported in Slovakia for the first time. Colonies of I. liriodendri were found on tulip trees, Liriodendron tulipifera, in two locations of south-western Slovakia in 2014 and 2015. Colonies of nymphs and viviparous females fed on the underside of leaves with no significant symptoms of damage to tulip trees. In this short study, the first report of the aphid from Slovakia is presented and original illustrations with results of morphometric analysis of alate viviparous females are provided.
Doc Dr Alois Honěk, CSc. - seventyBiographical Notice
V. Stejskal
Plant Protect. Sci., 2016, 52(2):147-148 | DOI: 10.17221/2/2016-PPS