Temat: biological agent - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Pegomya nigritarsis Ztt. [Diptera, Anthomyiidae] as an interesting option for biological control of Rumex confertus Willd
Autorzy:: Piesik, D
Powiązania:: https://bibliotekanauki.pl/articles/65479.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: weed
biological control
plant growth
pest weed
Rumex confertus
Pegomya nigritarsis
biological agent
Opis:: There is currently a very favorable climate for biological control of pest weeds. Moreover, biological control plays a significant role in the Integrated Plant Protection Management. Traditional methods of weed control, such as cultivation and the use of herbicides are not practical or desirable for some stands of weeds, and biological control has become an attractive strategy for control of pest weeds. Control of Rumex confertus Willd. by natural enemies that reduce its density is the good example of utilizing biological control on the European and worldwide scale. The aim of the conducted studies was to evaluate the dynamic of population of Pegomya nigritarsis Ztt. (Diptera, Anthomyiidae) on Rumex confertus Willd. and to determine the impact of pest’s injuries on the growth of a plant.
Intensyfikacja produkcji roślinnej zmusza do poszukiwania coraz to nowszych sposobów walki z agrofagami. Metody biologiczne są znane od wielu lat. Cały czas jednak odkrywa się nowe owady mogące odegrać pewną rolę w redukowaniu zachwaszczenia. Introdukcja nowych organizmów nie ma na celu wyeliminowania z ochrony roślin metod chemicznych. Jednak środki chemiczne są często mało selektywne, skażają środowisko oraz szybko stają się nieskuteczne, ponieważ organizmy nabywają odporności. Pegomya nigriarsis Ztt. to gatunek mogący odegrać pewną rolę w biologicznej walce z tym chwastem. Larwy żerując w liściach silnie redukują powierzchnię asymilacyjną chwastu. Tak uszkodzone rośliny zasychają.
Źródło:: Journal of Plant Protection Research; 2002, 42, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The occurrence of Hypera rumicis L. [Col., Curculionidae] on Rumex confertus Willd. as an interesting option for biological weed population control
Autorzy:: Piesik, D
Powiązania:: https://bibliotekanauki.pl/articles/65505.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: weed
biological control
weed population
Hypera rumicis
Curculionidae
population control
Rumex confertus
occurrence
biological agent
Opis:: Biological methods of weed control are alternative to chemical treatments. Biological techniques are used where no possibility for chemical spraying occurs. Rumex confertus Willd. is an example of a plant-eater which is potentially more important than chemical compounds. The objective of the study was to evaluate population dynamics and the development of Hypera rumicis L. (Coleoptera, Cucurlionidae) on Rumex confertus Willd. as well as to determine effects of the injuries on growth of a plant.
Chwasty są organizmami szkodliwymi, związanymi z działalnością człowieka, zatem istnieje potrzeba walki z nimi. Środki chemiczne najczęściej stosowane do walki z chwastami są często mało selektywne, skażają środowisko oraz szybko stają się nieskuteczne, ponieważ organizmy nabywają odporności. Metody biologiczne wydają się pewnym rozwiązaniem tego problemu. Spotkały się one ze szczególnym zainteresowaniem badaczy w odniesieniu do roślin zasiedlających tereny przyrzeczne. Hypera rumicis L. to gatunek mogący odegrać pewną rolę w biologicznej walce z tym chwastem, ze względu na niszczenie części generatywnej rośliny. Badania pokazały, że owad ten może być potencjalnym regulatorem populacji zachwaszczenia spowodowanego przez szczaw omszony.
Źródło:: Journal of Plant Protection Research; 2001, 41, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Unconventional alternatives for control of tomato root rot caused by Rhizoctonia solani under greenhouse conditions
Autorzy:: Hamza, A.
Mohamed, A.
Derbalah, A.
Powiązania:: https://bibliotekanauki.pl/articles/66331.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biological agent
control
tomato
root rot
Rhizoctonia solani
greenhouse condition
plant oil
nanoparticle
Opis:: This study was done to assess the antifungal effect of some biocontrol agents effective microorganisms (EMs1), Pseudomonas fluorescences, and Bacillus pumilus, titanium dioxide (TiO2) nanoparticles, black cumin and wheat germ oils as well as the recommended fungicide (flutolanil) against root rot of tomato. Moreover, gas chromatography-mass spectrometry (GC-MS) examination was completed to identify the bioactive compounds in plant oils (dark cumin and wheat germ). Also the impact of these medicines on some biochemical and growth parameters of tomato was examined. Flutolanil was the best treatment followed by dark cumin, TiO2, EMs1, Pseudomonas fluorescens, Bacillus pumilus and wheat germ oil, individually in both test seasons. The outcomes demonstrated a marked increase in each biochemical character (chlorophyll substance, peroxidase and polyphenoloxidase) and plant development (height and fresh and dry weight) under all the tried treatments in comparison to the controls.
Źródło:: Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Isolation and evaluation of biocontrol agents in controlling anthracnose disease of mango in Thailand
Autorzy:: Rungjindamai, N.
Powiązania:: https://bibliotekanauki.pl/articles/66340.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: isolation
evaluation
biological control
biological agent
controlling
anthracnose
Bacillus
plant disease
Colletotrichum gloeosporioides
epiphyte
mango
Thailand
Opis:: The agricultural based economy is a core business in Thailand and food export is one of the main sources of income for the Thai population. However, pesticides are overused and misused. As a result there is an urgent need to reduce the use of synthetic chemicals. Biological control offers an alternative to the use of pesticides. Mango (Mangifera indica L.) is widely planted in Thailand and is one of the major cash crops for international export. However, mango suffers from various diseases especially anthracnose, a fungal disease caused by Colletotrichum gloeosporioides. One hundred and twelve isolates of epiphytic microbes were isolated from healthy leaves and fruits of mangoes; this included 93 and 19 isolates of epiphytic bacteria and yeasts, respectively. They were screened for bioactivity against a pathogenic strain of C. gloeosporioides isolated from diseased mangoes using a dual culture technique. Out of 112 isolates, eight isolates exhibited at least 60% inhibition. These isolates were further screened for their inhibition on mango using fruit inoculation. Two isolates reduced the lesion sizes caused by C. gloeosporioides compared to control treatment. These two isolates, based on phenotypical and biochemical tests, were identified as Bacillus sp. MB61 and Bacillus sp. LB72.
Źródło:: Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The occurrence of Gastroidea viridula Deg. and Gastroidea polygoni L. [Col. Chrysomelidae] on Rumex confertus Willd. as biological representatives of weed population control
Autorzy:: Piesik, D
Powiązania:: https://bibliotekanauki.pl/articles/65315.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Polygonaceae
mossy sorrel
biological control
weed population
Chrysomelidae
Rumex confertus
Gastroidea viridula
occurrence
weed control
Gastroidea polygoni
biological agent
Opis:: 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 confertus 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 Gastroidea polygoni L.) occurring on Rumex confertus Willd.
Chwasty są szkodliwymi organizmami, których nie można lekceważyć. Dominującym sposobem walki z nimi są metody chemiczne. Zbyt duże stosowanie chemikaliów powoduje jednak nierzadko skażenie środowiska, a także uaktywnianie się agrofagów dotąd nieszkodliwych. Pewną alternatywą w związku z tym wydaje się być wykorzystywanie do walki z niektórymi chwastami owadów. Jednym z takich chwastów, które mogą być poddane biologicznemu zwalczaniu jest Rumex confertus Willd.
Źródło:: Journal of Plant Protection Research; 2000, 40, 3-4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Basic substances under EC 1107/2009 phytochemical regulation: experience with non-biocide and food products as biorationals
Autorzy:: Marchand, P.A.
Powiązania:: https://bibliotekanauki.pl/articles/66289.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: basic substance
2009-1107-EC Directive
phytochemical regulation
experience
non-biocide
food product
biorational control
biological control
biological agent
plant protection
Opis:: Basic Substances are a newly effective category of Plant Protection Product under EC Regulation No 1107/2009. The first approved application of Equisetum arvense L. opened Part C of Implementing Regulation (EU) No 540/2011, which lists the basic substance approved. Although E. arvense was described as a fungicide extract, subsequent applications like chitosan were related to non-biocide molecules. Consequently, plant protection product data were collected from research on alternative or traditional crop protection methods. They are notably issued or derived from foodstuffs (plants, plant by-products, plant derived products, substances and derived substances from animal origin). Applications are currently submitted by our Institute, under evaluation at different stages of the approval process or already approved. Remarkably, this Basic Substance category under pesticide EU Regulation was surprisingly designed for these non-biocidal plant protection products. In fact, components described as the “active substance” of most of the actual applications are food products like sugars and lecithin. Basic Substance applications for these foodstuffs are therefore a straightforward way of easily gaining approval for them. Here we describe the approval context and detail the agricultural uses of theses food products as Biological Control Agents (BCAs) or biorationals for crop protection. From all deposited or approved Basic Substance Application (BSA), a proof has been provided that non-biocide and food products via physical barrier or lure effects may be effective plant protection products with an acceptable low profile of concern for public and agricultural safety.
Źródło:: Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The effect of biological and chemical control agents on the health status of the very early potato cultivar Rosara
Autorzy:: Cwalina-Ambroziak, B.
Damszel, M.M.
Glosek-Sobieraj, M.
Powiązania:: https://bibliotekanauki.pl/articles/65899.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biological control agent
chemical control agent
health status
early potato
plant cultivar
Rosara cultivar
plant disease
fungi
fungicide
mycorrhizal inoculum
Polyversum
Opis:: The external appearance and quality of table potatoes are determined, among other factors, by the health status of the plants during the growing season. Chemical control methods are often combined with biocontrol agents to effectively fight potato pathogens. Potatoes of the very early cultivar Rosara were grown in experimental plots. The plots were located in Tomaszkowo (NE Poland, 2007–2009). The experiment involved the following treatments: 1) biological control − mycorrhizal Glomus spp. inoculum was applied to the roots, − tubers were dressed and plants were sprayed with Polyversum three times during the growing season, 2) chemical control – at two-week intervals, plants were sprayed with the following fungicides: Infinito 687.5 SC and Tanos 50 WG, Valbon 72 WG and Tanos 50 WG. In the control treatment, potato plants were not protected against pathogens. During the growing season, the severity of late blight and early blight was evaluated on a nine-point scale. The composition of fungal communities colonising potato stems was analysed. The fungistatic properties of the fungicides used in the field experiment were evaluated in an in vitro test. The symptoms of infections caused by Phytophthora infestans and Alternaria spp. were significantly reduced in the treatment which used the integrated chemical and biological control. The least diverse fungal community was isolated from fungicide-treated plants. In the in vitro test, fungicides at all analysed concentrations inhibited the linear mycelial growth of selected pathogens.
Źródło:: Journal of Plant Protection Research; 2015, 55, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Screening of Polish, other European and tropical isolates of Verticillium chlamydosporium to assess their potential as biological control agents of root-knot nematodes
Autorzy:: Sosnowska, D
Mauchline, T.H.
Bourne, J.M.
Kerry, B.R.
Powiązania:: https://bibliotekanauki.pl/articles/65445.pdf
Data publikacji:: 2001
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: screening
tropical isolate
agent
biological control
nematophagous fungi
root-knot nematode
nematode
Meloidogyne incognita
Verticillium chlamydosporium
Opis:: Three Polish, four other European and three tropical isolates of the nematophagous fungus Verticillium chlamydosporium were screened for their ability to colonise the surface of barley roots, produce chlamydospores and infect eggs of Meloidogyne incognita in laboratory tests. PCR-fingerprinting of different Polish isolates and Vc10 was used to detect differences between isolates. Among the European isolates, the Polish isolate which came from a field fertilised with manure produced the greatest number of viable chlamydospores, the largest proportion of infected eggs of Meloidogyne incognita and the most prolific root colonisation. Among the tropical isolates, an isolate A produced the largest number of chlamydospores and an isolate B was the most prolific root coloniser and parasitised most of M. incognita eggs.
Testy przeprowadzono w Zakładzie Entomologii i Nematologii IACR-Rothamsted w Anglii. Badano trzy polskie szczepy nicieniobójczego grzyba Verticillium chlamydosporium izolowanego z jaj mątwika burakowego Heterodera schachtii z pól z różnym nawożeniem organicznym. Porównywano je z innymi europejskimi i tropikalnymi szczepami grzyba pod względem produkcji chlamydospor, infekowania jaj guzaka Meloidogyne incognita oraz kolonizacji korzeni jęczmienia. Te trzy kryteria selekcji szczepów pozwoliły wybrać najlepszy szczep do zwalczania nicieni w praktyce. Wśród badanych 10 izolatów grzyba najlepszym był szczep tropikalny A. Wśród izolatów europejskich jedynie polski szczep pochodzący z populacji mątwika burakowego z pola nawożonego obornikiem może być brany pod uwagę w praktyce w biologicznym zwalczaniu guzaków. Testowane trzy kryteria selekcji pozwoliły wyeliminować ponad 60% izolatów grzyba V. chlamydosporium. Zastosowana metoda oceny polskich izolatów na poziomie molekularnym stosując test PCR wykazała wyraźne różnice pomiędzy badanymi izolatami grzyba.
Źródło:: Journal of Plant Protection Research; 2001, 41, 1
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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