Plant Protection Science, 2022 (vol. 58), issue 3

Role of nanoparticles in management of plant pathogens and scope in plant transgenics for imparting disease resistanceReview

Aflaq Hamid, Sahar Saleem

Plant Protect. Sci., 2022, 58(3):173-184 | DOI: 10.17221/37/2020-PPS  

Current efforts are focused on the search for efficient methods of pathogen management that will not result in damage to the environment or cause an imbalance in the existing biota. One of the strategies for this is the use of nanoparticles in agriculture for disease management. This review presents a summative view on the various applications of nanoparticles in conferring disease resistance to crops and the possibility of using nanoparticles as carriers of genetic material for the generation of disease resistant crops. Nanoparticles are directly being used for the control of pathogens. Nanoparticles have been used as antiviral, antifungal...

Effect of endophytic bacterium, Stenotrophomonas maltophilia JVB5 on sunflowersOriginal Paper

Bartholomew Saanu Adeleke, Ayansina Segun Ayangbenro, Olubukola Oluranti Babalola

Plant Protect. Sci., 2022, 58(3):185-198 | DOI: 10.17221/171/2021-PPS  

Identifiable endophytic bacteria with plant growth-promoting traits promise to ensure sustainable agriculture. However, information on the versatility and exploration of sunflower-associated bacteria as bioinoculants is less studied. Here, we present the whole-genome sequence and annotation of Stenotrophomonas maltophilia JVB5 isolated from the sunflower root endosphere from the North West province, South Africa. The whole-genome analysis revealed a genome size of 4 771 305 bp, a sequence read count of 8 764 890, a 66% guanine-cytosine content, 57 tRNAs, 268 contigs, and 4 160 protein-coding genes with functions in various metabolic pathways....

The fungal community of wheat phyllosphere was affected by the co-occurrence of stripe rust and powdery mildewOriginal Paper

Yan Chen, Jiaojiao Jiang, Shixian Pu, Na Wang, Ruiming Lin, Chengyun Li, Lin Liu

Plant Protect. Sci., 2022, 58(3):199-212 | DOI: 10.17221/107/2021-PPS  

Both wheat stripe rust and powdery mildew are important diseases in the world, which mainly infect the leaves and cause serious yield loss. In this study, the leaf samples of two varieties were collected from different pathogenic processes of stripe rust and powdery mildew that co-occurred in plants, and the internal transcribed spacer (ITS1) amplicon sequencing was introduced to analyse the structure and diversity of phyllosphere fungal communities. The results showed that the alpha diversity indices of the fungal communities were decreased with the pathogenic process, and the beta diversity among the different pathogenic process were significantly...

In vitro compatibility of entomopathogenic fungus, Cladosporium cladosporioides with three plant extractsOriginal Paper

Md. Touhidul Islam, Md. Anowarul Haque, Nur Uddin Mahmud, Dipali Rani Gupta, Tofazzal Islam

Plant Protect. Sci., 2022, 58(3):213-219 | DOI: 10.17221/135/2021-PPS  

The in vitro compatibility of the entomopathogenic fungus, Cladosporium cladosporioides BOU1, with the crude extract of three plants viz. Calotropis gigantea, Vitex negundo and Carissa macrocarpa at a concentration of 1% and 2% was investigated. The compatibility of the fungal isolate with the plant extracts was calculated using the biological index formula from the germination percentage, radial growth and spore production of BOU1. The compatibility of the plant extracts with the fungal isolate was also assessed based on the protease and lipase activities of the treated fungus. Both concentrations of plant...

Problems in cabbage stem weevil control (Ceutorhynchus pallidacytlus Marsh.) in winter oilseed rapeOriginal Paper

Marek Seidenglanz, Jaroslav Šafář, María Muñoz Arbeález, Petr Heděnec, Eva Hrudová, Romana Bajerová, Pavel Kolařík

Plant Protect. Sci., 2022, 58(3):220-233 | DOI: 10.17221/153/2021-PPS  

Due to the length of egg-laying period (> 80 days), two applications of insecticides against cabbage stem weevil (Ceutorhynchus pallidactylus Marsh.) are currently needed. However, resistance of pollen beetle (Brassicogethes aeneus F.) to pyrethroids complicates the choice of suitable insecticide for the second application. The active ingredients cypermethrin, etofenprox, pymetrozine, indoxacarb and chlorpyrifos-ethyl applied as second spring applications to winter oilseed rape crops were assessed under field conditions from 2016 to 2018 to ascertain how they could reinforce the effects of the first spring application...

Degree-day risk thresholds for predicting the occurrence of Anarsia lineatella, Grapholita molesta and Adoxophyes orana in northern Greece peach orchardsOriginal Paper

Petros T. Damos, Polyxeni Soulopoulou, Dimitrios Gkouderis, Dimitrios Monastiridis, Marianna Vrettou, Dimitrios Sakellariou, Thomas Thomidis

Plant Protect. Sci., 2022, 58(3):234-244 | DOI: 10.17221/137/2021-PPS  

In the present work, the phenology of the most important peach pests was studied to estimate the risk thresholds to be used in applying an updated automatic pest management decision support system. Particularly, the seasonal occurrence of Anarsia lineatella, Grapholita molesta and Adoxophyes orana was determined during 2018 and 2020 using pheromone traps from April till October in eight peach orchards in the prefecture of Pella in northern Greece. Additionally, the accumulated degree-days (DDs) were calculated for each moth and further related to the seasonal flight patterns to determine the period of which the activity of...

Early flowering field pea variety (Pisum sativum L.) as a trap crop for pea weevils (Bruchus pisorum L.)Original Paper

Marek Seidenglanz, María Muñoz Arbeález, Jaroslav Šafář, Petr Heděnec, Eliška Ondráčková, Romana Bajerová

Plant Protect. Sci., 2022, 58(3):245-257 | DOI: 10.17221/127/2021-PPS  

Bruchus pisorum L., is an economically important pest of field pea (Pisum sativum L.) crops worldwide, however, no fully effective methods (conventional, alternative) of its control exist now. To fill this knowledge gap, possibilities of trap cropping were tested in the years 2015-2017. Two field pea varieties differing in the start of flowering, and one spring barley variety, were used to design four different types of crops, that were compared in large plot trials (2.82 ha). It was hypothesized the females would prefer zones planted with early flowering variety for oviposition. In all three seasons, females placed more eggs on pods...

Cytospora friesii and Sydowia polyspora are associated with the sudden dieback of Abies concolor in Southern EuropeShort Communication

Jelena Lazarević, Audrius Menkis

Plant Protect. Sci., 2022, 58(3):258-263 | DOI: 10.17221/120/2021-PPS  

Abies concolor was introduced to Europe in the 19th century and commonly planted as an ornamental tree. In 2018, after several very warm and dry vegetation seasons, which has likely caused abiotic stress in the trees, a sudden dieback of A. concolor was observed in the city of Aranđelovac in Serbia. The external symptoms were the rapid discoloration of needles in a larger part of the crown and eventually the dieback of the trees. The aim of this study was to identify the possible agents of damage by analysing the fungal communities associated with symptomatic needles using high-throughput sequencing as no symptoms of damage...

Entomopathogenic fungus Metarhizium anisopliae (strain NCAIM 362) effects on soil inhabiting Melolontha melolontha (Coleoptera) and Duponchelia fovealis (Lepidoptera) larvae in sweet potato (Ipomoea batatas L.)Short Communication

Barna Putnoky-Csicsó, Ferenc Tóth, János Bálint, Endre Kentelky, Klára Benedek, Ciprian George Fora, Imre-István Nyárádi, Adalbert Balog

Plant Protect. Sci., 2022, 58(3):264-268 | DOI: 10.17221/2/2022-PPS  

The functional role of the insect pathogen fungus Metarhizium anisopliae strain NCAIM 362 against the white grub cockchafer (Melolontha melolontha) larvae and southern European marshland pyralid (Duponchelia fovealis) larvae in a sweet potato cultivation was tested under greenhouse conditions. As a positive control, the effect of the same strain of M. anisopliae were compared with the effect of the synthetic insecticide alpha-cypermethrin. According to the results, alpha-cypermethrin was more effective against both the Coleoptera and Lepidoptera larvae, a lower number of surviving individuals as well as less damaged...

Obituary of Professor Ing. Václav Kůdela, DrSc. (1936-2022)Biographical Notice

Aleš Lebeda

Plant Protect. Sci., 2022, 58(3):269-271 | DOI: 10.17221/29/2022-PPS  

On February 23, 2022, the great Czech plant pathologist, and my personal friend and esteemed colleague, prof. Václav Kůdela passed away. For over 15 years (1990-2006), he served as the Editor-in-Chief for our journal, Plant Protection Science. His whole adult life was connected with agriculture, plant pathology, plant protection and the science of phytotherapy. However, he was also man who accepted, maintained, applied and lived his life following specific, serious traditional rules. The trajectory of his life and its fundamental message arose primarily from his family origins and experiences in youth.