Results 1 to 10 of about 1,888 (169)

Sublethal effects of imidacloprid on the fitness of two species of wheat aphids, Schizaphis graminum (R.) and Rhopalosiphum padi (L.). [PDF]

open access: yesPLoS ONE, 2023
Imidacloprid is a neonicotinoid insecticide that efficiently controls piercing-sucking mouthparts pests. However, the impact of low lethal concentration of imidacloprid on key demographic parameters of wheat aphids, Schizaphis graminum (R.) and ...
Xiang Ji   +6 more
doaj   +2 more sources

Characterization of glutamine synthetase involved in the fecundity of Rhopalosiphum padi. [PDF]

open access: yesSci Rep
Abstract Glutamine synthetase (GS) is a pivotal enzyme crucial for the synthesis of glutamine (Gln), an important precursor in amino acid biosynthesis, essential for the growth, development, and reproduction of insects through its involvement in nitrogen metabolism. Despite its recognized significance in insect biology, the specific functions
Li XY, Wang JQ, Zheng KW, Li YT.
europepmc   +3 more sources

Asexual reproduction of a few genotypes favored the invasion of the cereal aphid Rhopalosiphum padi in Chile [PDF]

open access: yesPeerJ, 2019
Background Aphids (Hemiptera: Aphididae) are insects with one of the highest potentials for invasion. Several aphid species are present globally due to introduction events; they represent important pests of agroecosystems.
María E. Rubio-Meléndez   +4 more
doaj   +3 more sources

Sustainable control of the bird cherry-oat aphid (Rhopalosiphum padi L.) in northwestern Ontario using Beauveria bassiana delivered by bumblebees [PDF]

open access: yesFrontiers in Insect Science
Rhopalosiphum padi is one of the main vectors of barley yellow dwarf virus (BYDV), which affects the grain yield of oats. Several biological control strategies have been studied to control this pest, one of which is Bee Vectoring Technology (BVT) using ...
Jean Pierre Kapongo   +8 more
doaj   +2 more sources

Selection and Validation of Reference Genes For qRT-PCR Analysis of Rhopalosiphum padi (Hemiptera: Aphididae) [PDF]

open access: yesFrontiers in Physiology, 2021
Rhopalosiphum padi (L.) (Hemiptera: Aphididae) is an important cosmopolitan pest in cereal crops. Reference genes can significantly affect qRT-PCR results. Therefore, selecting appropriate reference genes is a key prerequisite for qRT-PCR analyses.
Mengyi Li   +16 more
doaj   +2 more sources

Mechanism of entomotoxicity of the Concanavalin A in Rhopalosiphum padi (Hemiptera: Aphididae). [PDF]

open access: yesJ Insect Sci, 2014
The toxicity effect of Concanavalin A (Canavalia ensiformis lectin, ConA) to bird cherry-oat aphid, Rhopalosiphum padi L. (Hemiptera: Aphididae), was investigated in the laboratory by using artificial diets containing ConA concentrations. Bird cherry-oat aphid performance was affected by the presence of Con A in artificial diets.
Sprawka I   +5 more
europepmc   +4 more sources

The low-lethal concentrations of rotenone and pyrethrins suppress the population growth of Rhopalosiphum padi [PDF]

open access: yesScientific Reports
As an important pest on winter wheat, Rhopalosiphum padi (L.) causes damage to the wheat yield by sucking plant nutrients, transmitting plant viruses and producing mildew. R. padi has been reported to develop resistance to pyrethroids and neonicotinoids.
Li Xu   +8 more
doaj   +2 more sources

miR-147b-modulated expression of vestigial regulates wing development in the bird cherry-oat aphid Rhopalosiphum padi [PDF]

open access: yesBMC Genomics, 2020
Background Most aphids exhibit wing polyphenism in which wingless and winged morphs produce depending on the population density and host plant quality.
Yinjun Fan   +4 more
doaj   +2 more sources

Resposta de cultivares de trigo à infestação do pulgão Rhopalosiphum padi Wheat cultivars response to Rhopalosiphum padi infestation

open access: yesPesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar a resposta de oito cultivares comerciais de trigo (BRS 194, BRS 208, BRS Camboatá, BRS Guabiju, BRS Guamirim, BRS Louro, BRS Timbaúva e BRS Umbu) à infestação do pulgão Rhopalosiphum padi (Hemiptera: Aphididae).
Rafael Peruzzo   +4 more
doaj   +2 more sources

Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. [PDF]

open access: yesPLoS ONE, 2018
The bird cherry-oat aphid, Rhopalosiphum padi (L.), is a major insect pest of cereal crops in many countries. Imidacloprid has been widely used for controlling piercing-sucking insect pests worldwide, but its sublethal effects on R.
Wenqiang Li   +6 more
doaj   +2 more sources

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