Temat: biological pest control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Larvicidal activity of Bacillus thuringiensis Colombian native strains against Bemisia tabaci (Hemiptera: Aleyrodidae)
Autorzy:: Cabra, E.T.
Hernandez Fernandez, J.A.
Powiązania:: https://bibliotekanauki.pl/articles/2084862.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biological control
genes cry
insect pest
molecular characterization
Opis:: The whitefly, Bemisia tabaci, an insect of the order Hemiptera which attacks more than 600 species of plants, is one of the most important agricultural pests around the world. The insecticidal Cry proteins from Bacillus thuringiensis (Bt) are useful biological pesticides, and some are toxic to Hemipteran insects. In this study, Colombian native isolates of Bt were functionally characterized at molecular and biological levels. The strains contained between one and five different crystal shapes: round, triangular, amorphous, bipyramidal and squared. The strains presented between three to seven bands of proteins in their electrophoretic pattern that were organized into six groups according to their possible biological activity on insect pests. Cry1Aa, cry1Ab, cry1Ac, cry1B and cry1C genes were identified for PCR in the different Bt isolates. Bioassays were performed on tomato leaves whose surface was spread with 3 µg · ml−1 crude extract of Bt toxins. Second instar larvae of whitefly, which were placed on top of leaves and exposed to the toxins for 7 days, exhibited mortalities from 18 to 69%. The lethal concentration 50 (LC50) of ZBUJTL39, Bt kurstaki HD1 and ZCUJTL9 strains were 1.83, 1.85 and 2.16 μg · ml−1, respectively (p < 0.05). These results show that the native Bt strain ZBUJTL39, which contained the genes cry1Aa, cry1Ab, cryCa and cryBa could eventually be used for the development of an integrated management program together with other tools for the control of B. tabaci.
Źródło:: Journal of Plant Protection Research; 2019, 59, 4; 503-511
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

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: 3.

Tytuł:: The major biological approaches in the integrated pest management of onion thrips, Thrips tabaci (Thysanoptera: Thripidae)
Autorzy:: Woldemelak, W.A.
Powiązania:: https://bibliotekanauki.pl/articles/1078658.pdf
Data publikacji:: 2020
Wydawca:: Instytut Ogrodnictwa
Tematy:: biological control
pest management
onion thrip
Thrips tabaci
Thysanoptera
Thripidae
Opis:: Thrips tabaci Lindeman is a cosmopolitan and polyphagous insect pest. It is known worldwide and recorded on more than 300 plant species. T. tabaci is a key pest of onion and several other crops, and its control is vital to the production and profitability of crops. If onion thrips population is not controlled, damage can reduce yield volume and quality. In addition to direct damage to the host plants, T. tabaci has been characterized as an asymptomatic vector of three devastating tospovirus species, such as Tomato spotted wilt virus, Iris yellow spot virus, and Tomato yellow ring virus. For this reason, several synthetic insecticides were used for control. However, these insecticides bring unwanted effects, like pesticide resistance, elimination of nontarget species, environmental pollution, and threats to human health. To solve the negative consequences of insecticides, biopesticides, such as plant secondary metabolites, entomopathogenic viruses, bacteria, fungi, and nematodes, have been recognized as effective alternatives. The use of plantbased insecticides and entomopathogenic control methods gained more attention in integrated pest management. Their strong side is lack of residues, saving beneficial insects and minimizing air and water pollution. Plant-derived compounds and entomopathogenic biological control agents offered a variety of biological modes of actions against onion thrips, such as repellency, feeding deterrence, anti-oviposition, fecundity deterrence, metamorphosis inhibition, and parasiting the host’s body.
Źródło:: Journal of Horticultural Research; 2020, 28, 1; 13-20
2300-5009
Pojawia się w:: Journal of Horticultural Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Distribution and Occurrence of Vairimorpha plodiae (Opisthokonta: Microspora) in the Indian Meal Moth, Plodia interpunctella (Lepidoptera: Pyralidae) Populations: An Extensive Field Study
Autorzy:: Sağlam, Tuğba
Yaman, Mustafa
Ertürk, Ömer
Powiązania:: https://bibliotekanauki.pl/articles/2041945.pdf
Data publikacji:: 2020-12-30
Wydawca:: Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:: Plodia interpunctella
Vairimorpha plodiae
biological control
stored product pest
entomopathogen
Opis:: The Indian meal moth, Plodia interpunctella (Lepidoptera: Pyralidae) is one of the most important stored product pests. Fumigation plays a significant role in the management of insect pests in stored-products. However, the use of fumigants is problematic because of their effects on the environment and high costs. Entomopathogenic organisms are environmentally friendly control agents and suppress pest populations under natural conditions. In this study, distribution and occurrence of a microsporidian pathogen, Vairimorpha plodiae (Opisthokonta: Microspora) in the populations of P. interpunctella from 12 localities representing Turkey between 2019 and 2020 are presented for the first time by confirming its effectiveness on natural populations. The presence of the microsporidian pathogen was found in 11 of 12 (91.7%) populations. In total, 863 of 3,044 samples were infected by the pathogen. Infection mean was 28.4% for all populations. Our results showed that V. plodiae infection reached to a considerably high prevalence (88.77%) in P. interpunctella populations and varied from 5.1 to 88.7% between the populations. In addition, microsporidia infections have been identified throughout Turkey. We found that V. plodiae can infect all life stages of P. interpunctella. Totally, 623 (28.5%) of 2187 larvae, 14 (37.8%) of 37 pupae, 226 (27%) of 820 adults were found to be infected by the pathogen. There were considerable differences between the dead and living larvae. The microsporidian infection was found in 26 (11.6%) of 225 living larvae, whereas it was found in 595 (30.5%) of 1,952 dead larvae. These results confirm that the microsporidia pathogen has a high spreading potential in P. interpunctella populations and can be a natural biological suppression factor on pest populations.
Źródło:: Acta Protozoologica; 2021, 60; 31-36
1689-0027
Pojawia się w:: Acta Protozoologica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Failure control of Plutella xylostella (Lepidoptera: Plutellidae) and selectivity of their natural enemies to different insecticides
Autorzy:: Bacci, L.
Rosado, J.F.
Picanco, M.C.
Gonring, A.H.R.
da Silva Galdino, T.V.
Martins, J.C.
Powiązania:: https://bibliotekanauki.pl/articles/66522.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biological control
Plutella xylostella
Lepidoptera
Plutellidae
selectivity
plant pest
natural enemy
insecticide
Brassica
crop
cabbage moth
Opis:: Control failure of pests and selectivity of insecticides to beneficial arthropods are key data for the implementation of Integrated Pest Management (IPM) programs. Therefore, the aim of this study was to assess the control failure likelihood of Plutella xylostella and the physiological selectivity active ingredients to parasitoid Oomyzus sokolowskii (Hymenoptera: Eulophidae) and to predators Polybia scutellaris (Hymenoptera: Vespidae) and Lasiochilus sp. (Hemiptera: Anthocoridae). In bioassays, P. xylostella larvae and O. sokolowskii, P. scutellaris and Lasiochilus sp. adults were used. Concentration-mortality curves of six insecticides for P. xylostella were established. These curves were used to estimate the mortality of P. xylostella at the recommended concentration, in order to check a control failure of insecticides to this pest. Furthermore, the lethal concentration for 90% of populations (LC90) and the half of LC90 were used in bioassays with the natural enemies to determine the selectivity of these insects to insecticides. All tested insecticides showed control failure to P. xylostella, indicated by high LC90 and low estimated mortalities (less than 80%). The cartap insecticide was selective in half of LC90 to Lasiochilus sp. and moderately selective in LC90 and the half of LC90, to Lasiochilus sp. and P. scutellaris, respectively. Deltamethrin was moderately selective in the half of LC90 to predator Lasiochilus sp. Cartap, carbaryl, and deltamethrin reduced the mortality of Lasiochilus sp. in the half LC90. The results also showed that the insecticides methamidophos, carbaryl, parathion methyl and permethrin were not selective to any of the tested natural enemies. The role of insecticides in IPM systems of Brassica crops is discussed based on their control failures to P. xylostella and selectivity to their natural enemies.
Źródło:: Journal of Plant Protection Research; 2018, 58, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Interactions between the entomopathogenic fungus Beauveria bassiana and the Neotropical predator Eriopis connexa (Coleoptera: Coccinellidae): Implications in biological control of pest
Autorzy:: Scorsetti, A.C.
Pelizza, S.
Fogel, M.N.
Vianna, F.
Schneider, M.I.
Powiązania:: https://bibliotekanauki.pl/articles/65580.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: interaction
entomopathogenic fungi
Beauveria bassiana
pathogen-predator interaction
Eriopis connexa
Coleoptera
Coccinellidae
biological control
pest
aphid
Hemiptera
Aphididae
Opis:: Aphids (Hemiptera: Aphididae) are serious pests of crops causing direct damage by feeding and indirect by the transmission of plant viruses. The use of conventional insecticides for controlling aphids has caused different problems and insecticide resistance. Accordingly, there is more interest in alternative control methods such as biological control by natural enemies for sustainable agricultural management. Among biological control agents, entomopathogenic fungi are one of the most significant microbial pathogens of insects. Also, Coccinellidae, as a major group, is a serious natural enemy. Both larval and adult stages of Coccinellidae feed on different soft-body pests, such as aphids. Eriopis connexa (Germar) (Coleoptera: Coccinellidae) is a common species in agroecosystems of the Neotropical region where it is considered to be a potential control agent. Pathogens and arthropod natural enemies may contribute to the control of phytophagous pests; however, it is important to assess potential interactions within biological control agents that share hosts (intraguild interaction) to evaluate their combined use for pest control. Therefore, the aim of this study was to evaluate the compatibility and interaction (lethal and sublethal effects) between E. connexa and the entomopathogenic fungus Beauveria bassiana (Bals.-Criv.) Vuill. (Ascomycota: Hypocreales). Both are important biological control agents of aphids. The pathogenicity of B. bassiana against larvae, pupae and adults of the predator E. connexa was evaluated, and results showed, that B. bassiana infected the coleopteran. On the other hand, interaction between B. bassiana and the predator was evaluated through infected-prey. The effects of fungus on larvae survival were significantly different when we analyzed the accumulated survival (from first larval instar to adulthood). The daily fecundity was significantly reduced at five days compared to control group. By contrast, no significant differences were observed between the five oviposition days in the rate of hatched eggs. This study shows that despite having received a single dose of the fungus in its life cycle, the population parameters of the predator E. connexa are affected. More studies would be necessary to help identify interactions between microbes and natural enemies to increase and enhance opportunities and further develop biological pest control programs.
Źródło:: Journal of Plant Protection Research; 2017, 57, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Effect of the alternative host Strophosoma faber [Herbst] on efficacy of the entomopathogenic nematode Steinernema glaseri in control of Amphimallon solstitiale grubs in the soil
Autorzy:: Kowalska, J
Powiązania:: https://bibliotekanauki.pl/articles/66392.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: pest
alternative host
biological control
plant protection
Amphimallon solstitiale
Steinernema glaseri
host
root
June chafer
soil
nematode
larva
entomopathogenic nematode
grass
Opis:: 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. Bath 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.
Larwy guniaka czerwczyka (Amphimallon solstitiale L.) są szkodnikami terenów trawiastych i przyczyną poważnych szkód ekonomicznych. W trakcie dokonywania cyklicznych zbiorów pędraków tego szkodnika zaobserwowano licznie występujące w glebie larwy ryjkowca Strophosoma faber (Herbst). Oba gatunki zasiedlały w tym samym czasie tę samą niszę ekologiczną. W związku z tym, że nicienie owadobójcze są rozważane jako czynnik biologicznego zwalczania guniaka czerwczyka, szkodnika występującego na zielonych terenach zurbanizowanych, podjęto decyzję o przeprowadzeniu testów laboratoryjnych, w trakcie których oceniono wpływ obecności konkurencyjnego gospodarza na skuteczność zastosowanych nicieni przeciwko innemu szkodnikowi. Stwierdzono, że oba gatunki są infekowane przez nicienie, choć zdecydowanie wyższy poziom śmiertelności zaobserwowano dla larw ryjkowca. Można uznać, że S. faber jest bardziej wrażliwym owadem niż A. solstitiale na infekcje spowodowane przez nicienie owadobójcze. Tym samym może stać się dla nich gospodarzem alternatywnym i rezerwuarem dla następnych pokoleń larw infekcyjnych S. glaseri.
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: 8.

Tytuł:: Ecological applications of Pseudomonas as a biopesticide to control two-spotted mite Tetranychus urticae: chitinase and HCN production
Autorzy:: Quesssaoui, R.
Bouharroud, R.
Amarraque, A.
Ajerrar, A.
Mayad, E.H.
Chebli, B.
Dadi, M.
Elaini, R.
El Filali, F.
Walters, A.S.
Powiązania:: https://bibliotekanauki.pl/articles/66489.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: biological control
ecological application
Pseudomonas
biopesticide
pest control
two-spotted mite zob.two-spotted spider mite
red spider mite zob.two-spotted spider mite
two-spotted spider mite
Tetranychus urticae
chitinase
hydrogen cyanide
Opis:: The two-spotted spider mite (Tetranychus urticae Koch) is an important pest of many horticultural crops. A study was conducted to evaluate the effect of three fluorescent Pseudomonas isolates obtained from rhizospheric soil of tomato (Solanum lycopersicon) in Agadir, Morocco: Q110B, Q036B and Q172B, as potential biological control agents for T. urticae. Both acaricide and repellent activities were assessed on homogenous adult mites. The acaricidal activity test evaluated five concentrations of bacterial suspensions: 0 (control), 102, 104, 106, 108, and 1010 cfu ⋅ ml–1, while only the 1010 cfu ∙ ml−1 concentration of each bacterium was used for the repellent bioassay. The mortality rate and repellentindex were recorded 24, 48 and 72 h after application. Results indicated that the survival rate of T. urticae was reduced (p ≤ 0.01) by all three bacterial isolates compared to control. Within the 24–72 h time period the mortality rates ranged from 8 to 87%, 16 to 99%, and 13 to 89%, for Q110B, Q036B and Q172B isolates, respectively. The isolate Q036B (LC50 = 0.598 cfu ⋅ ml–1) provided higher mortality rates than Q172B and Q110B with LC50 values of 90,846 and 169,585 cfu ⋅ ml–1, respectively. Repellent activity was also the highest with Pseudomonas Q036B having a 71% repellence index at 48 h after application. Regarding the mechanism of action, all three isolates produced hydrogen cyanide, and exhibited protease and cellulose activities, although only Q036B and Q172B had potential chitinase action. Identification analysis showed that the isolates were either Pseudomonas putida (Q172B) or P. fluorescens (Q110B and Q036B). Our results indicate that the P. fluorescens isolate Q036B is a promising candidate for biological control of T. urticae, and has potential to contribute to an integrated pest management program to control this important pest. Then the fruits produced will be qualified as safe for consumers and the environment. The present work was customized to give support for policy decision makers as an agroecological potential meeting needs of industries and ecological balance.
Źródło:: Journal of Plant Protection Research; 2017, 57, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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