<abstract xmlns="http://www.w3.org/1999/xhtml">The degradation kinetics and sorption characteristics of atrazine and metolachlor in Japanese andisol soil were evaluated using laboratory incubation of soil samples. The water content of the soil was set to field capacity while three different temperatures (5, 25 and 35°C) were considered for the experiment. First order model fitted the degradation kinetics of both herbicides under the investigated temperature range with half-lives ranging from 19.2 to 46.9 days for atrazine and from 23.4 to 66.9 days for metolachlor, respectively. The activation energies (<italic>Ea</italic>) of atrazine and metolachlor calculated using Arhenius equation were 21.47 and 23.91 kJ mol−1, respectively. The soil sorption study was conducted using the batch equilibrium process. The adsorption behaviors of atrazine and metolachlor were investigated using linear, Freundlich and Langmuir isotherms although the linear and Freundlich isotherms gave relatively high correlation coefficient (<italic>R2</italic>) and very low standard error of estimate (<italic>SEE</italic>). The free energy (Δ<italic>G</italic>°) values were in the range −30.6 to −32.0 kJ/mol, and −32.1 to −41.5 kJ/mol for atrazine and metolachlor, respectively. Thermodynamic parameters indicated that the adsorption is spontaneous, endothermic accompanied by increase in entropy. The understanding of atrazine and metolachlor sorption processes is essential to determine the pesticide fate and availability in soil for pest control, biodegradation, runoff and leaching.</abstract>

Tokyo University of Agricultural and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8581,

Pesticide Residues and Environmental Pollution Department, Central Agricultural Pesticide Laboratory, Agriculture Research Center, Dokki, Giza, 12618,

Aspect of the degradation and adsorption kinetics of atrazine and metolachlor in andisol soil

<abstract xmlns="http://www.w3.org/1999/xhtml"><italic>Ruellia simplex</italic> plant is grown for its aesthetic features including flowers, leaves and overall foliage appearance. The fig wax scale <italic>Ceroplastes rusci</italic> L. (Hemiptera: Coccidae) was detected for the first time in Egypt on <italic>R. simplex</italic>. Mineral oil, diazinon, thiamethoxam + chlorantraniliprole, and essential oils extracted from <italic>Acorus calamus</italic> and <italic>Petroselinum crispum,</italic> were compared for their ability to control the insect. Results indicated that reduction percentage increased gradually until day 7 after the treatment regarding adults, nymphs and their total. The maximum efficacy of the mineral oil, and thiamethoxam + chlorantraniliprole, was noticed 21 days after treatment, followed by <italic>A. calamus</italic> oil. Efficacy of <italic>P. crispum</italic> oil and diazinon reached more than 86% after 21 days and more than 90% 28 days after treatment. At 28 days, <italic>A. calamus</italic> oil reached its maximum efficacy. Plants treated with thiamethoxam + chlorantraniliprole were the tallest plants and possessed significantly higher number of branches and leaves, and leaf pigments followed by those treated with mineral oil or <italic>A. calamus</italic> oil. <italic>A. calamus</italic> oil and thiamethoxam + chlorantraniliprole were proved as promising compounds tested for the first time in controlling <italic>C. rusci</italic>.</abstract>

Plant Protection Dept., Faculty of Agriculture, Assiut University, 71526,

Plant Protection Dept., Faculty of Agriculture, South Valley Univ.,

Ornamental Plants and Landscape Gardening Dept., Fac. Agric., Assiut Univ., 71526,

Efficiency of sweet flag and curly parsley volatile oils compared with synthetic insecticides against <italic>Ceroplastes rusci</italic> on Ruellia plants

<abstract xmlns="http://www.w3.org/1999/xhtml">Root-knot nematodes are major pests of legume fields in Iran. This research evaluated the effect of <italic>Rhizobium leguminosarum</italic> bv. <italic>phaseoli</italic> and <italic>Pseudomonas fluorescens</italic> CHA0 (stand alone and combination treatment) on galling and reproduction of root-knot nematode, <italic>Meloidogyne javanica,</italic> in legum (chickpea, bean, lentil, pea) seedling rhizosphere, and the growth properties of the host plants. The legumes seeds were sown in 1kg sterilized sandy loam soil. Inocula were 5 J2/g of soil, in the case of the nematode, while considering the bacteria 1×107 cfu/kg soil. A treatment of nematicide (cadusafos) was performed, as a commonly used nematicide in Iran, at 2g/kg soil. Two months after inoculation, the following parameters were recorded: the number of knots, egg masses and reproduction factor of the nematode, bacterial nodules per root, and growth properties of seedlings in the treatments (control, nematode, nematode+nematicide, and nematode+rhizobacteria). The greatest bacterial effect on the control of the nematode was observed in the rhizosphere of the bean treatments. Inoculation with <italic>Rhizobium</italic> in the soil decreased the galling on the legumes’ roots, and the combined inoculation with <italic>Pseudomonas</italic> and <italic>Rhizobium</italic> resulted in a higher decrease of the galling.</abstract>

Senior Expert, Center of Agricultural Research, Pishva, Varamin, Tehran,

Assistant Professor, Department of Plant Protection, Faculty of Agricultura, Shahed University, Tehran,

Rhizobacteria cooperative effect against <italic>Meloidogyne javanica</italic> in rhizosphere of legume seedlings

<abstract xmlns="http://www.w3.org/1999/xhtml">The effect of <italic>Pseudomonas putida</italic> BTP1, <italic>Bacillus subtilis</italic> Bs2500, Bs2504, and Bs2508 strains on the incidence (I) and severity (S) of barley leaf stripe disease caused by <italic>Pyrenophora graminea</italic> was evaluated under field conditions. Three barley cultivars varying in resistance level were used. The resistance achieved in our study was long-lasting. <italic>P. putida</italic> BTP1 and Bs2508 were in general the most effective strains in reducing significantly both I and S of barley leaf stripe disease vis-a-vis three cultivars in two growing seasons 2013/2014. The disease was reduced up to 66% in Arabi Abiad treated with <italic>P. putida</italic> BTP1. The susceptible landrace cultivar Arabi Abiad exhibited a significant induction of resistance by Bs2508 and BTP1. However, the resistant cultivar Banteng did not exhibit significant further increase in resistance by these bacterial strains. The grain yield of bacterized plants artificially inoculated with <italic>P. graminea</italic> was not affected, except that of the cultivar Arabi Abiad treated with Bs2508 and Bs2504. Triggering of resistance by treating seeds with the bacterial strains would be of great value in agriculture, especially in case of barley infection by <italic>P. graminea</italic> at an early stage of plant development.</abstract>

Effect of several rhizobacteria strains on barley resistance against <italic>Pyrenophora graminea</italic> under field conditions

<abstract xmlns="http://www.w3.org/1999/xhtml">The Cretan date palm, <italic>Phoenix theophrasti,</italic> is a less susceptible and suitable host for the red palm weevil compared to the Canary palm, <italic>P. canariensis</italic>, even at high pest pressure. Nevertheless, <italic>P</italic>. <italic>theophrasti</italic> is not invulnerable to the red palm weevil, hence under continuous and high pest pressure young offshoots/palms can be deadly infested. The slow development of the insect in the Cretan date palm should probably allow a larger ‘window of time’ for an effective plant protection management against the pest.</abstract>

Can high pest pressure of the red palm weevil <italic>Rhynchophorus ferrugineus</italic> beat the defense of <italic>Phoenix theophrasti?</italic>

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Hellenic Plant Protection Journal

 The Hellenic Plant Protection Journal (HPPJ) (ISSN 1791-3691) is the scientific publication of the Benaki Phytopathological Institute (BPI) replacing the Annals of the Benaki Phytopathological Institute (ISSN 1790-1480) which had been published since 1935. Starting from January 2008, the Hellenic Plant Protection Journal is published semiannually, in January and July each year.  HPPJ publishes scientific work on all aspects of plant health and plant protection referring to plant pathogens, pests, weeds, pesticides and relevant environmental and safety issues. In addition, the topics of the journal extend to aspects related to pests of public health in agricultural and urban areas.  Papers submitted for publication can be either in the form of a complete research article or in the form of a sufficiently documented short communication (including new records). Only original articles which have not been published or submitted for publication elsewhere are considered for publication in the journal. Review articles in related topics, either submitted or invited by the Editorial Board, are also published, normally one article per issue. Upon publication all articles are copyrighted by the BPI.  Manuscripts should be prepared according to instructions available to authors and submitted in electronic form through Editorial Manager. All submitted manuscripts are considered and published after successful completion of a review procedure by two competent referees.  The content of the articles published in HPPJ reflects the view and the official position of the authors. The information and opinions contained herein have not been adopted or approved by the HPPJ Editorial Board. The HPPJ Editorial Board neither guarantees the accuracy of the information included in the published articles nor may be held responsible for the use to which information contained herein may be put.  For all parties involved in the act of publishing (the author(s), the journal editor(s), the peer reviewers, and the publisher) it is necessary to agree upon standards of expected ethical behavior. HPPJ follows the ethics statements of De Gruyter journals, which are based on the Committee on Publication Ethics (COPE) Code of Conduct guidelines available at www.publicationethics.org.  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Hellenic Plant Protection Journal

Volume 10 (2017): Issue 1 (January 2017)

Aspect of the degradation and adsorption kinetics of atrazine and metolachlor in andisol soil

Efficiency of sweet flag and curly parsley volatile oils compared with synthetic insecticides against Ceroplastes rusci on Ruellia plants

Rhizobacteria cooperative effect against Meloidogyne javanica in rhizosphere of legume seedlings

Effect of several rhizobacteria strains on barley resistance against Pyrenophora graminea under field conditions

Can high pest pressure of the red palm weevil Rhynchophorus ferrugineus beat the defense of Phoenix theophrasti?

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