First report of invasive brown marmorated stink bug Halyomorpha halys (Stål, 1855) in Croatia          下载免费PDF全文

I. Šapina  L. Šerić Jelaska 《EPPO Bulletin》2018,48(1):138-143

The brown marmorated stink bug, Halyomorpha halys (Stål, 1855) (Hemiptera: Heteroptera: Pentatomidae), has been spreading over Europe since the first documented records from Liechtenstein in 2004 and Switzerland in 2007. It is considered to be a pest in many agricultural crops and a household nuisance. In 2017 the species was observed in Croatia for the first time, in the city of Rijeka on the north Adriatic coast. Halyomorpha halys has already been recorded in three nearby countries (Italy, Hungary and Serbia), and therefore the arrival of this species had been expected from neighbouring populations or from distant sources via trading goods. To identify the pathway of entry, the haplotypes of H. halys (Stål, 1855) individuals were analysed by comparing a part of the mitochondrial COI gene with other haplotypes present in the GenBank database. Individual specimens shared the most common haplotype with nearby Italian and Hungarian populations.  相似文献   

Effects of 5 years of digestate application on biomass production and quality of cocksfoot (Dactylis glomerata L.)          下载免费PDF全文

V. Tilvikienė  A. Šlepetienė  Ž. Kadžiulienė 《Grass and Forage Science》2018,73(1):206-217

Anaerobic digestion of biomass produces biogas for combustion and also provides a residual digestate. Although sometimes regarded as a waste product, the nutrient‐rich chemical composition of digestate makes it a potential organic fertilizer for agriculture. The goal of this study was to evaluate the effectiveness of digestate as a fertilizer on the biomass yield and chemical composition of cocksfoot (Dactylis glomerata L.). In a 5‐year small‐plot field experiment digestate fertilization treatments supplying 90, 180, 270, 360 and 450 kg N ha^?1 were compared with untreated plots and plots fertilized with 180 kg N ha^?1 of mineral N fertilizer. Swards fertilized with digestate produced higher biomass yield compared with the control. The same rate of nitrogen fertilizer (180 kg N ha^?1) supplied as digestate and from mineral fertilizers gave similar results on biomass yield. Herbage in swards fertilized with digestate contained less nitrogen, but the C:N ratio was much more suitable for biogas production. Digestate fertilization resulted in higher concentrations of cellulose and hemicellulose in biomass and lower contents of the inhibitors of anaerobic digestion—sulphur, calcium, magnesium and phosphorus—compared with those of swards receiving mineral fertilizers.  相似文献   

Environmentally friendly methods for controlling pine pitch canker     

J. Martín-García  R. Zas  A. Solla  S. Woodward  J. Hantula  E. J. Vainio  M. Mullett  C. Morales-Rodríguez  A. Vannini  P. Martínez-Álvarez  G. Pinto  A. Alves  J. Amaral  M. J. Wingfield  G. Fourie  E. T. Steenkamp  R. Ahumada  B. Šerá  A. V. Sanz-Ros  R. Raposo  M. Elvira-Recuenco  E. Iturritxa  T. R. Gordon  J. J. Diez 《Plant pathology》2019,68(5):843-860

Fusarium circinatum is a highly virulent invasive pathogen that causes the disease commonly known as pine pitch canker (PPC). On mature trees, the most common symptoms of PPC include resin bleeding, resinous cankers, wilting of needles and dieback. In nurseries the main symptoms are yellowish needles, and wilting of foliage and shoots. PPC is considered one of the most important diseases of conifers globally and at least 60 species of Pinus along with Pseudotsuga menziesii are known to be susceptible. Quarantine regulations are crucial to minimize the risk of new introductions into disease-free countries. However, if these measures fail, implementation of environmentally friendly control methods is currently encouraged in an integrated management approach that minimizes the use of chemicals in forests. This review therefore summarizes current knowledge of biological control using endophytic fungi, bacteria and viruses, and other environmentally friendly methods to control PPC, including thermotherapy, natural products with fungicidal effects, promoters of innate host resistance mechanisms and breeding for resistance. Key research gaps to be addressed for improvement of effective management of this disease are discussed.  相似文献   

Effects of cage fish farming on phytoplankton community structure,biomass and primary production in an aquaculture area in the middle Adriatic Sea     

Sanda Skejić  Ivona Marasović  Olja Vidjak  Grozdan Kušpilić  Živana Ninčević Gladan  Stefanija Šestanović  Natalija Bojanić 《Aquaculture Research》2011,42(9):1393-1405

In this study, we investigated the physical, chemical and biological parameters of the water column at two stations under different trophic conditions during a 1‐year period (from September 2005 to September 2006) in an aquaculture area. The investigation was performed monthly at a station inside the fish farm in Maslinova Bay (middle Adriatic Sea, Croatia) and at a control station located in the Hvar Channel in the vicinity of the farm. The results showed that the concentrations of dissolved nutrients were slightly enhanced at the farm station in comparison with the control station, although those differences were not statistically significant, nor were the differences in oxygen saturation recorded during the investigation period. As opposed to the chemical parameters, considerably higher deviations were recorded for biological parameters as demonstrated by a significant increase in phytoplankton biomass and primary production (measured in situ) at the farm station, particularly during the summer season. Phytoplankton community structure analysis showed that the phytoplankton composition at the farm was mostly determined by seasonal changes rather than by the influence of fish farming. In Maslinova Bay, no causal links were identified between increased biomass and the appearance of toxic species.  相似文献   

The Effect of Intravalvular Liquid Loss on Changes in Escherichia coli Levels in Live,Refrigerated Mussels (Mytilus galloprovincialis)     

Slaven Jozić  Katarina Milanković  Tea Brajčić  Mladen Šolić  Danijela Šantić  Marin Ordulj 《Journal Of Aquatic Food Product Technology》2017,26(4):491-500

We investigated the effect of intravalvular liquid loss on changes in Escherichia coli (E. coli) levels in mussels (Mytilus galloprovincialis) harvested in different seasons and refrigerated (5°C) for 72 hours. A positive effect of seawater temperature at the time of harvesting on intravalvular liquid loss was found. No changes in E. coli levels in mussels (flesh and intravalvular liquid), as the result of intravalvular liquid loss, were observed. Levels of E. coli in the flesh decreased, probably as a result of cells dying off, causing the maintenance of E. coli levels in flesh and intravalvular liquid to be stable throughout storage.  相似文献   

Aluminium and iron oxides affect the soil structure in a long-term mineral fertilised soil     

Šimanský  Vladimír  Jonczak  Jerzy 《Journal of Soils and Sediments》2020,20(4):2008-2018

Journal of Soils and Sediments - The influence of iron and aluminium (hydr)oxide on soil aggregation is still not sufficiently understood. Therefore, we undertook a study on the effects of Al and...  相似文献