Results 21 to 30 of about 43,020 (198)

Molecular evolution of aphids and their primary ( Buchnera sp.) and secondary endosymbionts: implications for the role of symbiosis in insect evolution. [PDF]

, 2001
Aphids maintain an obligate, endosymbiotic association with Buchnera sp., a bacterium closely related to Escherichia coli. Bacteria are housed in specialized cells of organ-like structures called bacteriomes in the hemocoel of the aphid and are ...
Silva, F.J., Latorre, A., Ham, R.C.H.J., van, Moya-Simarro, Andrés, Ham, Roeland C.H.J. van, Sabater-Munoz, B., Martinez-Torres, D., Moya, A., Silva-Moreno, Francisco, Latorre-Castillo, Amparo, van Ham, R.C.H.J., Martínez-Torres, David, Sabater-Muñoz, Beatriz   +12 more
core   +1 more source

Reproductive polyphenism and its advantages in aphids: Switching between sexual and asexual reproduction

Journal of Integrative Agriculture, 2020
Reproductive polyphenism, which allows one genotype to produce sexual and asexual morphs, is an extreme case of phenotypic plasticity and is commonly observed in aphids.
Shuo YAN, Wan-xing WANG, Jie SHEN
doaj   +1 more source

Performance and transcriptomic response of the English grain aphid, Sitobion avenae, feeding on resistant and susceptible wheat cultivars

Journal of Integrative Agriculture, 2021
Plant resistance against insects mainly depends on nutrient restriction and toxic metabolites, but the relative importance of nutrition and toxins remains elusive.
Hao LAN, Zhan-feng ZHANG, Jun WU, He-he CAO, Tong-xian LIU   +4 more
doaj   +1 more source

Effect of epicuticular waxes from triticale on the feeding behaviour and mortality of the grain aphid, Sitobion avenae (Fabricius) (Hemiptera: Aphididae)

Journal of Plant Protection Research, 2016
Surface waxes from wax-covered triticale plants (RAH 122) were sprayed on plants of the waxless genotype RAH 366 or the surface waxes were used to make artificial diet preparations.
Wójcicka Agnieszka
doaj   +1 more source

Establishment and Expansion of Harmonia axyridis Pallas (Coleoptera: Coccinellidae) in Urban Green Areas in the Iberian Peninsula: From 2015 to 2021

Insects, 2022
In the Western Palearctic region, Harmonia axyridis (Coleoptera: Coccinellidae) is mainly established in urban areas. In this study, we update its occurrence in urban areas of the Iberian Peninsula and determine its expansion after 2014.
Roberto Meseguer, Belén Lumbierres, Xavier Pons   +2 more
doaj   +1 more source

Aphid Pheromones

, 2010
Aphids are the main insect pests of agricultural crops in temperate regions causing major economic losses. Although broad-spectrum insecticides are available for control, alternative and more targeted methods are needed due to insecticide resistance and increasing environmental pressures.
Dewhirst, S. Y., Pickett, J. A., Hardie, J.   +2 more
openaire   +2 more sources

LAMPYRIDS AND APHIDS. [PDF]

The Canadian Entomologist, 1908
n ...
openaire   +1 more source

A Lacustrine Aphid [PDF]

Science, 1905
n ...
openaire   +2 more sources

Host plants and obligate endosymbionts are not the sources for biosynthesis of the aphid alarm pheromone

Scientific Reports, 2017
(E)-β-farnesene (EβF) is the major component of the alarm pheromone of many aphid species, but where EβF is synthesized in aphids is only partly understood.
Zhi-Juan Sun, Zheng-Xi Li
doaj   +1 more source

Ant-aphid interactions in multispecies ant communities: Some ecological and ethological aspects

European Journal of Entomology, 2005
Investigations of the interactions between aphids and ants in multispecies ant communities and an experimental investigation of some ethological aspects of ant-aphid interactions were carried out in mixed forests at Novosibirsk Academic Centre, from 1998-
Tatiana A. NOVGORODOVA
doaj   +1 more source