Effect of grain excavation damages by Sitophilus granarius on the efficacy of grain protectant insecticides against Cryptolestes ferrugineus and Tribolium castaneum
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/60460709:41210/22:91354
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Effect of grain excavation damages by Sitophilus granarius on the efficacy of grain protectant insecticides against Cryptolestes ferrugineus and Tribolium castaneum
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Effect of grain excavation damages by Sitophilus granarius on the efficacy of grain protectant insecticides against Cryptolestes ferrugineus and Tribolium castaneum
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
JOURNAL OF STORED PRODUCTS RESEARCH
ISSN
0022-474X
e-ISSN
—
Svazek periodika
99
Číslo periodika v rámci svazku
DEC 2022
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
9
Strana od-do
102022
Kód UT WoS článku
000874896500003
EID výsledku v databázi Scopus
2-s2.0-85137689898