Results 31 to 40 of about 131,694 (353)

Overexpression of CmMYB15 provides chrysanthemum resistance to aphids by regulating the biosynthesis of lignin

open access: yesHorticulture Research, 2019
MYB transcription factors are widely involved in the development of and physiological processes in plants. Here, we isolated the chrysanthemum R2R3-MYB family transcription factor CmMYB15, a homologous gene of AtMYB15.
Cong An   +10 more
semanticscholar   +1 more source

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

open access: yesJournal 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

Observations on the Interrelationships among Ants, Aphids, and Aphid Predators [PDF]

open access: yes, 2017
Excerpt: The literature concerning the interactions of these insect groups is as interesting as it is extensive. It has generally been accepted that the relationship between ants and aphids has been one of mutualism in which ants derive all or a large ...
Glass, Arthur W   +2 more
core   +3 more sources

Symbionts protect aphids from parasitic wasps by attenuating herbivore-induced plant volatiles

open access: yesNature Communications, 2017
Plants respond to insect attack by releasing blends of volatile chemicals that attract their herbivores’ specific natural enemies, while insect herbivores may carry endosymbiotic microorganisms that directly improve herbivore survival after natural enemy
E. Frago   +7 more
semanticscholar   +1 more source

The effect of landscape complexity and microclimate on the thermal tolerance of a pest insect [PDF]

open access: yes, 2017
Landscape changes are known to exacerbate the impacts of climate change. As such, understanding the combined effect of climate and landscape on agroecosystems is vital if we are to maintain the function of agroecosystems.
Alford, Lucy   +4 more
core   +4 more sources

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

open access: yesInsects, 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   +2 more
doaj   +1 more source

Abundance of Cereal Aphids (Homoptera: Aphididae) and Their Predators in Spring Wheat-Alfalfa Intercrops Under Different Crop Management Intensities [PDF]

open access: yes, 2018
Natural infestations of cereal aphids and abundance of their predators were compared from 1990 through 1993 among plots of intercropped spring wheat and alfalfa grown under high, intermediate, or low crop management intensity (CMI).
Evenson, Paul D   +2 more
core   +2 more sources

Parasitism, Adult Emergence, Sex Ratio, and Size of \u3ci\u3eAphidius Colemani\u3c/i\u3e (Hymenoptera: Aphidiidae) on Several Aphid Species [PDF]

open access: yes, 2017
Aphidius colemani Viereck parasitizes several economically important aphid pests of small grain crops including the greenbug, Schizaphis graminum and the Russian wheat aphid, Diuraphis noxia. The ability of A. colemani to switch from S.
Burd, J. D   +4 more
core   +2 more sources

Factors Influencing Length and Volume of Cells Provisioned by Two \u3ci\u3ePassaloecus\u3c/i\u3e Species (Hymemoptera: Sphecidae) [PDF]

open access: yes, 2017
Length of cells provisioned by Passaloecus areolatus and Passaloecus cuspidatus decreased as bore diameter increased, but volume of provisioned cells increased with increasing bore diameter.
Fricke, John M
core   +2 more sources

Differences in microbiota between two multilocus lineages of the sugarcane Aphid (Melanaphis sacchari) in the continental United States [PDF]

open access: yes, 2020
The sugarcane aphid (SCA), Melanaphis Sacchari (Zehntner) (Hemiptera: Aphididae), has been considered an invasive pest of sugarcane in the continental United States since 1977. Then, in 2013, SCA abruptly became a serious pest of U.S.
Antwi, Josephine B.   +11 more
core   +1 more source

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