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Effect of grain excavation damages by Sitophilus granarius on the efficacy of grain protectant insecticides against Cryptolestes ferrugineus and Tribolium castaneum

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F22%3A10175334" target="_blank" >RIV/00027006:_____/22:10175334 - isvavai.cz</a>

  • Alternative codes found

    RIV/60460709:41210/22:91354

  • Result on the web

    <a href="https://www.sciencedirect.com/journal/journal-of-stored-products-research/vol/99/suppl/C" target="_blank" >https://www.sciencedirect.com/journal/journal-of-stored-products-research/vol/99/suppl/C</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jspr.2022.102022" target="_blank" >10.1016/j.jspr.2022.102022</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of grain excavation damages by Sitophilus granarius on the efficacy of grain protectant insecticides against Cryptolestes ferrugineus and Tribolium castaneum

  • Original language description

    Internally feeding primary pests produce dusty frass that is known to support the development of externally developing beetles. Apart from frass, primary pests create semi-opened cavities in kernels that provide an op-portunity for hiding and feeding of secondary pests, increase grain surface area and decrease weight of excavated kernels. It is unknown whether the excavated kernels may affect the efficacy of grain protectants and the development of secondary pests. Therefore, this study explored insecticide droplet distribution on the surface of excavated kernels by Sitophilus granarius. Further, it evaluated the effect of grain mixtures -differing in various proportions of sound and excavated kernels without frass -on the development and efficacy of two different doses of grain protectant insecticides (pirimiphos-methyl and deltamethrin) in sensitive strains of Cryptolestes ferrugineus and Tribolium castaneum. It was found -using dyed insecticide spray -that half of kernels did not receive droplets inside the excavations. Bioassays revealed that (i) the adult survival and progeny production of C. ferrugineus and T. castaneum were recorded only on mixtures with a high proportion of excavated kernels; (ii) the higher dose of pirimiphos-methyl and deltamethrin led to 100% mortality in both pests under all conditions; and (iii) the lower dose enabled survival on grain mixtures with an increased ratio of excavated to sound kernels in both chemicals and secondary pest species. The work first showed that a high proportion of damaged kernels in a grain batch/sample can support the development of C. ferrugineus and T. castaneum even without the presence of frass and that excavated kernels may cause pest survival in the case of a lower concentration of grain protectants.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    JOURNAL OF STORED PRODUCTS RESEARCH

  • ISSN

    0022-474X

  • e-ISSN

  • Volume of the periodical

    99

  • Issue of the periodical within the volume

    DEC 2022

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    9

  • Pages from-to

    102022

  • UT code for WoS article

    000874896500003

  • EID of the result in the Scopus database

    2-s2.0-85137689898