Life Sciences and Agriculture

Journal of Plant Protection Research

Content

Journal of Plant Protection Research | 2000 | No 3

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Abstract

The effect of some terpenoid lactones (monocyclic ó-hydroxy-v-lactone: bicyclic &-hydroxy-y-spirolactone and bicyclic &-hydroxy-y-lactone) and azadirachtin on feeding and growth of Leptinotarsa decemlineata Say larvae was studied. Among lactones bicyclic 6-hydroxy-y-spirolactone showed a strong feeding deterrency. Larvae treated with this compound consumed O.I63 cm2 (per larva) of potato leaves during 6 days, whereas control larvae ate 0.892 cm2• When lactones were used, a slight increase in body weight was observed. Azadirachtin, in comparison with lactones, much stronger reduced food consumption and growth rate of insects.
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Authors and Affiliations

Maryla Szczepanik
Małgorzata Grabarczyk
Teresa Olejniczak
Edyta Paruch
Czesław Wawrzeńczyk
Edyta Szczepaniak
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Abstract

Spring triticale 'Migo', and spring barley 'Maresi' grown in pure stand and in their mixtures were used in field experiment. Disease occurrence, number of culms and heads as well as yield were assessed. Powdery mildew and scald of barley and Septaria leaf blotch of triticale occurred in lower degree in mixtures than in pure stands, but only in the years with weather conditions favourable for the diseases development. Fusarium stem rot and eyespot of both plant species as well as net blotch of barley occurred in similar degree in all treatments or even in some mixtures in higher degree than in pure stands.
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Authors and Affiliations

Tadeusz Michalski
Zbigniew Weber
Barbara Gołębniak
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Abstract

Population parameters of Sitophilus granarius (L.) were measured under various conditions of temperature and relative humidity. The range of five examined temperatures ( 15 to 35°C) had a remarkably stronger effect on all examined parameters than applied range of two relative humidities (75%; 85 or 95%). The highest intrinsic rate of natural increase (rm) and the highest finite rate of increase (lambda) were recorded when temperatures of 25 and 30'C were used. The generation time (T) ranged from approximately 10 weeks at 30"C and 75 or 85% RH to approximately 22 weeks when l 5°C was used. At 35°C there were no survivors of any immature stages of S. granarius regardless of relative humidity, so population parameters could not be counted. A brief narrative is presented on the potential of these environmental variables for control applications.
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Authors and Affiliations

Ewa Szlendak
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Abstract

The experiment was carried out under laboratory conditions on sterile and nonsterile humus soil treated with 1'C-2,4-dichlorophenol (DCP). The disappearance dynamics of extractable residues, and formation of the bound ones, as well as diffusion of radioactive volatile substances to the air were observed during 112 days. The results showed that disappearance of extractable residues of 2,4-DCP and binding to the soil matter run much faster in the presence of soil microorganisms than under abiotic factors. It has been stated that soil microorganisms played an important role as the regulator of free residues level in soil solution, enhanced their mineralization process. Moreover, by participation in binding of 2,4-DCP to soil matrix microorganisms also limited the release of toxic substance into the air.
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Authors and Affiliations

Alicja Lewandowska
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Abstract

The research on the influence of pollution emitted by the WBM-30 bituminous mass factories on the winter wheat-crop was carried out in 1981. The factory was situated in the agricultural area far from the farm buildings in the village of Trzebownisko. The experimental area was divided into four zones (three zones of pollution and one control zone). The wheat ear samples were collected during full grain ripeness per 100 ears from different plantations in three repetitions in each zone. They showed that all examined features, such as, e.g. the average ear length and I OOO grain mass were substantially different between the l" pollution zone and control zone.
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Authors and Affiliations

Zdzisław Przybylski
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Abstract

Weeds are harmful organisms connected with human activities; therefore there is a need for their control. human development and mobility have caused on purpose or purely incidental introduction of plants, exotic very often, to new sites and ecosystems. A dominating method of weed control is applying chemicals. However, chemical compounds are often of low selectivity, they also contaminate the environment and become ineffective quickly because of acquired resistance of treated organisms. The control of Rumex confertus Willd. and other weeds of the genus Rumex spp. is often not possible because of economical reasons. Large areas abundant in sorrel populations would require a large sum of money invested in expensive chemical control. Biological methods of weed control look far more promising solution to this problem. Rumex confer/us Willd. is a plant corresponding to criteria to qualify it as an object for biological regulation. The objective of the study was to evaluate dynamic of population and development of the insects of the genera Gastroidea spp. (Gastroidea viridula Deg. and Gasrroidea polygoni L.) occurring on Rumex confertus Willd.
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Authors and Affiliations

Dariusz Piesik
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Abstract

In 1998 and I 999, the research on the contents of entomofauna settlement of Heracleum Sosnowskyi Manden was carried out at Mochełck, and in 1999 - at Minikowo near Bydgoszcz. Useful insects were the most abundant group in the tested habitats. Based on the results of the investigations, it can be concluded that only two species: blunt's flat-body (Depressaria depresel/a Hb.) and celery fly (Phi/lophylla heraclei L.) may be of any importance in the fight against population of this plant.
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Authors and Affiliations

Danuta Wrzesińska
Aleksandra Błażejewska
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Abstract

In the years 1997-1999 the occurrence of ryc diseases in the region of south-western Poland was investigated on rye varieties Warko, Dańkowskie Złote and hybrid rye Marder. Eyespot (Pseudocercosporella herpotrichoides var. acuformis) and brown rust (Puccinia recondita) occured most frequently in the experimental period. Fusarium stem base rot and leaf blight iFusarium spp.) and leaf scald iRhynchosporium secalis) were occasionally of considerable importance, but their occurrence was usually less frequent. Variety Marder showed high susceptibility to stem base and leaf diseases, especially to brown rust. When one treatment with fungicides was applied, grain yield increase of cv Marder reached the value of 20,03% in conditions of high infection by pathogens. It was concluded that in the years favourable for the development of diseases on ryc, chemical control with broad-spectrum fungicides might be advisable, especially for protecting susceptible varieties.
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Authors and Affiliations

Mariola Głazek
Barbara Krzyzińska
Agnieszka Mączyńska
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Abstract

Larvae of June chafer (Amphimallon solstitiale L.) are important pests of the turf-grass. During a routine field collection of A. solstitiale grubs numerous larvae of a curculionid. Strophosoma faber were frequently observed in the soil. Both insects shared the same environment in the same season. Since entomopathogenic nematodes are considered as candidates for control of A. solstitiale it was decided to examine the effect of concurent presence of S. faber on the efficacy of S. glaseri. The laboratory test revealed that both insects were infected by S. glaseri. In conclusion, could be support the suggestion that S. faber is probably most susceptible for entomopa-thogenic nematodes and could become the alternative host for them.
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Authors and Affiliations

Jolanta Kowalska
ORCID: ORCID
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Abstract

The influence of cinnamic acid, 1-tryptophane, 3,4-dihydroxyphenylalanine, 2,4-dichlorophenol modifying IAA-oxidase activity and indoleacetic acid on the development and reproduction of cereal aphids in laboratory conditions was tested. We observed that IAA and Try stimulated the reproduction of cereal aphids whereas CA, DOPA and DCP decreased it.
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Authors and Affiliations

Małgorzata Woda-Leśniewska
Jerzy Giebel
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Abstract

In the period of 1993-1998 six wells known as being contaminated were monitored 3-6 times per year (a total of 143 samples) for the presence of atrazine, simazine and respective chloro-dealkyl metabolites. Samples were prepared for analysis by solid phase extraction (SPE) and determination was by HPLC/UV or GC/NPD techniques, GC/MSD and HPLC/DAD were employed as secondary (confirmatory) techniques. Residues of analysed compounds were present in more than 90% of samples with exception for DeDiA that was found in 81.6% of samples. The highest concentrations of atrazine, simazine, DeA, DiA, and DeDiA were 16.80; 18.60; 7.49; 2.98 and 3.43 μgil respectively. New inputs of atrazine and simazine were observed in ground water of three wells occasionally, probably resulting from fresh herbicide treatments. In the other wells contamination was rather stagnant at lower levels (0.X mg/I).
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Authors and Affiliations

Jerzy Dąbrowski
Dariusz Drożdżyński
Stanisław Walorczyk
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Abstract

In the years 1997-1999, studies on the periods of A. lusitanicus development and on the occurrence of its developmental stages were carried out. Dates of overwintering, mating, egg-laying, hatching and population peaks of the slug were observed on six sites located in horticultural habitats, as well as in the isolation cage, where slugs were reared. It was ascertained that A. lusitanicus has a year-long life cycle. The slug overwinters in the form of eggs or juvenile stages and rarely as adult individuals. Young slugs leave their winter shelters by the end of February. The mating period starts in the second half of July and lasts from 6 to IO weeks. Eggs are laid from mid-August till late autumn. Slug hatching occurs in spring and autumn at the time of plant sprouting.
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Authors and Affiliations

Jan Kozłowski
Radosław J. Kozłowski
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Abstract

The level of free (PAs) and conjugated (CPAs) soluble polyamines in leaves ofChenopodium album was determined using the fluorometric method for dansy lated derivatives. The tests made at the 4-6 leaf growth stage showed that the concentration of PAs in susceptible (S) and resistant (R) biotypes ranged between 32-43 μg and 45-56 μg per 100 μl of cell sap, respectively. The analyses performed later, namely at the beginning of flowering showed that the difference in the level of polyamines between Sand R biotypes was greater. In this case the amount of PAs in biotype S ranged between 15-34 μg and in biotype R between 51-73 μg per 100 μl of cell sap. Therefore, the level of PAs cans act as an indicator for susceptibility or resistance of C. album biotypes to atrazine.
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Authors and Affiliations

Jerzy Giebel
Stanisław Stachecki
Tadeusz Praczyk
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Abstract

Later harvest time increased the infection of stems by Fusarium spp. and plant lodging. With the delay of harvest, the dry matter content in grain increased, but the crop in the later periods decreased. The optimal harvest time seems to be 20 days after reaching physiological maturity. In spite of using different genotypes and a wide range of harvest dates, the chemical analysis used to determine the presence of trichothecens B (DON, 3-AcDON, 15-AcDON and NIV) did not reveal their presence above the detection limit 0,001 mg/kg.
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Authors and Affiliations

Tadeusz Michalski
Juliusz Perkowski
Jerzy Stachowiak
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Abstract

Kennedy, G. G., Sutton, T. B. (eds.). 2000. Emerging Technologies for Integrated Pest Management: Concepts, Research, and Implementation. APS Press - The American Phytopathological Society, St. Paul, Minnesota, 526 pp. ISBN-0-89054-246-5.
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Authors and Affiliations

Jerzy J. Lipa
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Abstract

Tjamos, E. C., Rowe, R. C., Heale, J. B., Fravel, D. R (eds.). 2000. Advances in Verticillium Research and Disease Management. APS Ameńcan Phytopathological Society Press, St. Paul, Minnesota, 357 pp. ISBN 0-89054-247-3.
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Authors and Affiliations

Jerzy J. Lipa
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Abstract

Ackerman R. A., Jenniskens M . I. P. J. 2000. International Plant Protection Policy and Market Development: On the Treshold of a New WTO Ro und. Wageningen Pers, 120 pp.
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Authors and Affiliations

Jerzy J. Lipa
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Abstract

Marks R. J., Brodie B. B. (eds.) Potato cyst nematodes: biology, distribution and control. CAB International, Wallingford, 408 pp. ISBN 0851992749.
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Authors and Affiliations

Stefan Kornobis
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Abstract

Schurtleff, M.C., Averre III, C.W. 2000. Diagnosing Plant Diseases Caused by Nematodes. The American Phytopathological Society, St. Paul 187 pp. ISBN 0-89054-254-6.
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Authors and Affiliations

Jerzy J. Lipa

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Instructions for Authors

Manuscripts published in JPPR are free of charge. Only colour figures and photos are payed 61.5 € per one colour page JPPR publishes original research papers, short communications, critical reviews, and book reviews covering all areas of modern plant protection. Subjects include phytopathological virology, bacteriology, mycology and applied nematology and entomology as well as topics on protecting crop plants and stocks of crop products against diseases, viruses, weeds, etc. Submitted manuscripts should provide new facts or confirmatory data. All manuscripts should be written in high-quality English. Non-English native authors should seek appropriate help from English-writing professionals before submission. The manuscript should be submitted only via the JPPR Editorial System (http://www.editorialsystem.com/jppr). The authors must also remember to upload a scan of a completed License to Publish (point 4 and a handwritten signature are of particular importance). ALP form is available at the Editorial System. The day the manuscript reaches the editors for the first time is given upon publication as the date ‘received’ and the day the version, corrected by the authors is accepted by the reviewers, is given as the date ‘revised’. All papers are available free of charge at the Journal’s webpage (www.plantprotection.pl). However, colour figures and photos cost 61.5 € per one colour page.

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