scholarly journals The efficacy of novel diamide insecticides in Grapholita molesta suppression and their residues in peach fruits

2019 ◽  
Vol 56 (No. 1) ◽  
pp. 46-51
Author(s):  
Antonije Žunić ◽  
Slavica Vuković ◽  
Sanja Lazić ◽  
Dragana Šunjka ◽  
Dragana Bošković
Keyword(s):  
Field Trials ◽  
Residue Level ◽  
Oriental Fruit Moth ◽  
The Novel ◽  
High Efficacy ◽  
Grapholita Molesta ◽  
Peach Fruit ◽  
Maximum Residue Level ◽  
The Republic ◽  
The Eu

The oriental fruit moth [(Grapholita molesta (Busck, 1916)] represents one of the most significant and destructive pests of peaches in Serbia and worldwide. Its susceptibility to the novel diamide insecticides, cyantraniliprole and chlorantraniliprole, was assessed in this article. The dissipation dynamics and behaviour of these insecticides in the peach fruit were also determined. Field trials were carried out at two localities in the Republic of Serbia (Čerević, Mala Remeta), according to standard EPPO methods. The cyantraniliprole <br />(100 g a. i./l, SE) and chlorantraniliprole (200 g a. i./l, SC) based products were foliar applied at rate of 0.6 and 0.2 l/ha, respectively. The efficacy of the applied products was evaluated by counting the number of fruits damaged by the G. molesta larvae. The high efficacy of cyantraniliprole (89.5–94.1%) and chlorantraniliprole (93.5–95.6%) was achieved at both localities. Right after the drying of the deposit, the concentration of cyantraniliprole in the peach fruits was at the EU maximum residue level (MRL) of 1.5 mg/kg, while the MRL level of 1 mg/kg was achieved after seven days (0.95 mg/kg) for chlorantraniliprole. The cyantraniliprole and chlorantraniliprole half-life dissipation in the peach fruit were 2.50 and 3.15 days. It can be concluded that the high efficacy of the researched insecticides is a good indicator of G. molesta susceptibility in peach orchards.

Residue analysis of fosthiazate in cucumber and soil by QuEChERS and GC-MS

2014 ◽  
Vol 68 (10) ◽  
Author(s):  
Min Wu ◽  
Jiye Hu
Keyword(s):  
Solid Phase ◽  
Residue Analysis ◽  
Field Trials ◽  
Residue Level ◽  
Gas Chromatography Mass Spectrometry ◽  
Dispersive Solid Phase Extraction ◽  
First Order ◽  
First Order Kinetics ◽  
Maximum Residue Level ◽  
Relative Standard

AbstractA convenient method was developed for the determination and validation of fosthiazate in cucumber and soil. The procedure is based on liquid partitioning with acetonitrile followed by dispersive solid phase extraction as the clean-up step, after which samples were analysed by gas chromatography-mass spectrometry (GC-MS). The average recoveries ranged from 91.2 % to 99.0 % with relative standard deviations (RSDs) of less than 6.05 %, at three fortification levels (0.02 mg kg−1, 0.1 mg kg−1, 0.5 mg kg−1) in cucumber and soil, and the limits of quantification (LOQs) for fosthiazate were all established at 0.02 mg kg−1. The proposed method was applied successfully to analyses of the dissipation and residue of fosthiazate in field trials. The dissipation rate of fosthiazate was described using pseudo-first-order kinetics with a half-life of 4.33 days and 4.08 days in soil in Beijing and Shandong, respectively. In the terminal residue experiment, fosthiazate residues in cucumber and soil were clearly below the maximum residue level (MRL, 0.2 mg kg−1) set in China.

Preparation and characterization of ultrasensitive and specific polyclonal antiserum against ciprofloxacin based on cationized bovine serum albumin

2014 ◽  
Vol 68 (11) ◽  
Author(s):  
Sheng-Liang Deng ◽  
Ping Li ◽  
Hong-Bin Liu ◽  
Shu-Ming Yang
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Bovine Serum ◽  
Limit Of Detection ◽  
Polyclonal Antiserum ◽  
Residue Level ◽  
Enzyme Linked Immunosorbent Assay ◽  
Maximum Residue Level ◽  
The Eu

AbstractAn ultrasensitive polyclonal antiserum against ciprofloxacin (CPFX) was developed by introducing cationized bovine serum albumin (BSA) as the carrier. Conjugates used as immunogens were synthesized using CPFX coupled to BSA cationized with ethylenediamine and hexamethylenediamine, namely CPFX-eBSA and CPFX-hBSA. The results showed that the antisera immunized with CPFX-hBSA exhibit an improved sensitivity and specificity compared with those immunized with CPFX-eBSA. Under the conditions of optimal heterologous enzyme-linked immunosorbent assay, the optimal antiserum yielded an IC50 of 0.097 ng mL−1, which proves it to be more sensitive than any CPFX antibody. Cross-reactivities with norfloxacin, enrofloxacin, and ofloxacin were < 3.0 %. No cross-reactivities with penicillin and gentamicin were found. The limit of detection was 0.01 ng mL−1, which is far below the maximum residue level established by the EU regulation, suggesting the great potential of the presented antiserum for quantitative assays of CPFX in samples.

scholarly journals Determination of residue of diazinon and carbosulfan in brinjal and quinalphos in yard long bean under supervised field trial

1970 ◽  
Vol 33 (3) ◽  
pp. 503-513 ◽  
Author(s):  
KH Kabir ◽  
MA Rahman ◽  
MS Ahmed ◽  
MDH Prodhan ◽  
MW Akon
Keyword(s):  
Key Words ◽  
Field Trial ◽  
Field Trials ◽  
Residue Level ◽  
Maximum Residue Level

The present study was undertaken to detect and quantify the left over residue of Diazinon and Carbosulfan in brinjal and Quinalphos in yard long bean and comparison between the detected residue level with maximum residue level (MRL) set by FAO (1970). Three supervised field trials (two for brinjal and one for yard long bean) were carried out sprayed with the field dose (1.5 ml/L of water) of Diazinon, Carbosulfan, and Quinaiphos. Samples were collected daily after spraying till residue were found. In case of Diazinon, left over residue was found upto 6 days after spray (DAS), and upto 3 DAS, the level of residue was above the MRL. Carbosulfan residue was detected till 7 DAS and the detected quantity of residue was above MRL upto 3 DAS. Left over residue of Quinalphos in yard long bean sample was detected upto 6 DAS and upto 4 DAS the level of residue was above the MRL. Key Words: Residue, Diazinon, Carbosulfan, Quinalphos. brinjal, yard long bean. doi:10.3329/bjar.v33i3.1609 Bangladesh J. Agril. Res. 33(3) : 503-513, September 2008

scholarly journals Performance evaluation of spirodiclofen, spirotetramat and carboxymethyl cellulose-B for management of Cacopsylla pyri

2021 ◽  
Author(s):  
Đura Nađ ◽  
Dušan Marinković
Keyword(s):  
Performance Evaluation ◽  
Carboxymethyl Cellulose ◽  
Field Trials ◽  
Plant Diseases ◽  
High Efficacy ◽  
Foliar Fertilizer ◽  
Direct Damage ◽  
Cacopsylla Pyri ◽  
Stems And Leaves ◽  
The Republic

The pear psyllid [Cacopsylla pyri (L.), (Hemiptera: Psyllidae)] represents one of the most economically significant pests of pear in Serbia and worldwide. It causes direct damage throughout feeding on young stems and leaves, but also creates favourable conditions for the development of plant diseases. In this article susceptibility of C. pyri to spirodiclofen, spirotetramat, and their combinations with foliar fertilizer (carboxymethyl cellulose-boron, CMC-B) was investigated in order to assess their efficacy. Experiments were conducted in accordance with standard OEPP/EPPO methods, in field trials on two localities in the Republic of Serbia (Kula, Vrbas), during 2020/21. Results of the field trials indicate good efficacy for all variants in pear psyllid control in pear orchards. The high efficacy of spirodiclofen (87.4–95.4%), spirotetramat (82.5–91.8%), spirodiclofen + CMC-B (90.3–99.8%), spirotetramat + CMC-B (89.5–96.8%) was achieved at both localities seven days after treatment during 2020/21 field trials. Also, it can be concluded for examinations 14 days after treatment, where the efficacy of spirodiclofen (84.9–92.0%), spirotetramat (81.2–91.7%), spirodiclofen + CMC-B (88.9–97.5%), and spirotetramat + CMC-B (82.3–92.5%) was high at both of investigated localities. Based on the obtained results it can be concluded that the high efficacy of the researched insecticides is a good indicator of C. pyri susceptibility in pear orchards.  

scholarly journals Morphological Differences between Larvae of the Oriental Fruit Moth (Grapholita molesta Busck) and the Peach Fruit Moth (Carposina sasakii Matsumura) in Korea

2013 ◽  
Vol 43 (1) ◽  
pp. 21-26 ◽  
Author(s):  
Seung-Yeol Lee ◽  
Kwang-Shik Choi ◽  
Kyung-Hee Choi ◽  
Tae-Myung Yoon ◽  
Hee-Young Jung
Keyword(s):  
Oriental Fruit Moth ◽  
Grapholita Molesta ◽  
Peach Fruit ◽  
Morphological Differences ◽  
Carposina Sasakii

scholarly journals Company Changing Status and Its Linking to Competitiveness

2015 ◽  
Vol 53 (1) ◽  
pp. 1-17
Author(s):  
Dragana Radenković-Jocić ◽  
Ivan Barun
Keyword(s):  
Mergers And Acquisitions ◽  
Legal Framework ◽  
Decision Makers ◽  
Economic Activities ◽  
Economic Interests ◽  
Eu Legislation ◽  
The Republic ◽  
The Right ◽  
A Company ◽  
The Eu

Abstract The authors present the issues and challenges related to the changes in status of a company and its impact on competitiveness. Status changes of companies, mostly mergers and acquisitions of companies, are one of the ways in which capital owners and management direct economic activities with the aim of maximizing profits. In order to make the right and justified decision, in terms of achieving the economic interests of the company, it is essential to know the laws and regulations in this area. This paper should provide answers on various questions which will be presented to decision makers in every company, considering status changes. Bearing in mind that the question of status changes often associated with an international element, the authors will pay special attention on the EU legislation and current legal framework in the Republic of Serbia.

PENENTUAN KADAR RESIDU TETRASIKLIN HCl PADA IKAN AIR TAWAR YANG BEREDAR DI PASAR SEGIRI MENGGUNAKAN METODE SPEKTROFOTOMETRI ULTRA VIOLET

2017 ◽  
Vol 2 (2) ◽  
pp. 173
Author(s):  
Henny Nurhasnawati ◽  
Siti Jubaidah ◽  
Novita Elfia
Keyword(s):  
Freshwater Fish ◽  
Ultra Violet ◽  
Standard Addition ◽  
Fish Farming ◽  
Residue Level ◽  
Ultraviolet Spectrophotometry ◽  
Maximum Residue Level ◽  
Traditional Market ◽  
Antibiotic Residue ◽  
Tetracycline Hcl

Tetracycline HCl is one of the most commonly used antibiotics in fish farming that aims to control diseases caused by bacteria. The purpose of this study was to determine the presence and the level of tetracycline HCl antibiotic residue in freshwater fishes sold at the Segiri traditional market. The method used in this research was a standard addition ultraviolet spectrophotometry. The results showed that residue level of tetracycline HCl in freshwater fish is 192,067 μg/g – 257,409 μg/g. These result was far exceeded the maximum residue level of tetracycline class antibiotics in meat and dairy based on SNI 01-6366-2000 that limit the residue not higher than 0.1 μg/g

Legal conflict between the EU and the republic of Poland regarding polish judicial reform

2021 ◽  
Author(s):  
Ivan Yakovyuk ◽  
Suzanna Asiryan ◽  
Anastasiya Lazurenko
Keyword(s):  
European Union ◽  
Judicial Reform ◽  
Eu Law ◽  
The European Union ◽  
Member States ◽  
Court Of Justice ◽  
Legal Nature ◽  
Constitutional Tribunal ◽  
The Republic ◽  
The Eu

Problem setting. On October 7, 2021, the Constitutional Tribunal of the Republic of Poland ruled in favor of Polish law over European Union law, which in the long run may violate the principles according to which the Union operates and the rights enjoyed by citizens of the state. Such a precedent can further serve as a basis for identical decisions of the bodies of constitutional jurisdiction of those states that have problems in fulfilling their obligations in the European community. Analysis of recent researches and publications. The problems of the functioning of the bodies of the European Union, the implementation of their decisions and the general status in EU law are widely studied in national science. In particular, many scholars have studied the legal nature of the EU, including: TM Anakina, VI Muravyov, NM Ushakov, A. Ya. Kapustina, NA Korolyova, Yu. Yumashev, BN Topornin, OYa Tragniuk, SS Seliverstov, IV Yakovyuk and others. Target of research is to establish the foundations of EU law in the functioning of Union bodies, especially the Court, as well as to determine the hierarchy of national law and EU law. Article’s main body. Over the years, the Court has, within its jurisdiction, issued a large number of judgments which have become the source of the Union’s Constituent Treaties and of EU law in general. Over the last two decades, the powers of the Court of Justice have changed significantly. In particular, this is due to the adoption of the Lisbon Treaty, which amended the EU’s founding treaties on the powers of the Court, then the reform of the European Court took place in 2015-2016, which concerned a change in the organizational structure of the Court. Despite the generally well-established case law of the Court of Justice of the European Union on the unification of the observance by the Member States of the basic principles of the European Union, the Constitutional Tribunal of the Republic of Poland adopted a decision on 7 October. Conclusions and prospects for the development. Following the decision of the Constitutional Court, the Polish authorities found themselves in a situation that significantly complicated its internal and external situation. The way out of which requires answers to fundamental questions about the legal nature of the EU. Undoubtedly, this is an issue not only between Poland and the EU, but also between other member states.

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