Results 81 to 90 of about 25,195 (279)

African Aphididae

open access: yesBulletin of Entomological Research, 1914
Our knowledge of the Aphididae of Africa is as yet very limited, this important group of insects having been but little studied, except in Europe and North America. At present only thirty-five species are recorded for the whole African continent, about the number one can collect in a single afternoon in one's own garden in England.
openaire   +2 more sources

Metabolite‐based resistance in wheat varieties to aphid virus vectors: progress and future opportunities

open access: yesPest Management Science, Volume 81, Issue 11, Page 7276-7287, November 2025.
Sitobion avenae and Rhopalosiphum padi are major pests on wheat. Natural product‐based aphid resistance holds promise for the sustainable control of these pests. The current literature is discussed, highlighting knowledge gaps and challenges that need addressing. Abstract Cereal aphids, Sitobion avenae and Rhopalosiphum padi, cause severe yield loss in
Alexander N Borg   +3 more
wiley   +1 more source

Natural hybridisation between Aphis grossulariae and Aphis schneideri: morphological evidence (Sternorrhyncha: Aphididae)

open access: yesEuropean Journal of Entomology, 2003
Morphometric analysis of 176 natural samples of A. grossulariae Kaltenbach, 1843 and A. schneideri (Börner, 1940) was performed, using 308 alate and 750 apterous viviparous females from 25 countries altogether.
Rimantas RAKAUSKAS
doaj   +1 more source

Rice Root Aphids, Rhopalosiphum rufiabdominale, Preferentially Choose and Multiply Faster on Monocotyledonous Plants

open access: yesEntomologia Experimentalis et Applicata, Volume 173, Issue 11, Page 1205-1215, November 2025.
Rice root aphids (RRAs) feed on a range of monocotyledonous and dicotyledonous plants. In choice experiments with two potted plants, RRAs invariably selected and multiplied faster on monocotyledonous rye than on dicotyledonous cannabis, celery, coriander, lettuce, pepper, squash, tomato, or marigold.
Mikhaela Ong   +5 more
wiley   +1 more source

Experimental hybridisation between Aphis grossulariae and Aphis triglochinis (Sternorrhyncha: Aphididae)

open access: yesEuropean Journal of Entomology, 2000
Aphis triglochinis and A. grossulariae clones from southern Poland produced fertile hybrid eggs under experimental conditions. Established hybrid clones expressed normal parthenogenetic reproduction but bisexual generations were obtained only in three ...
Rimantas RAKAUSKAS
doaj   +1 more source

Sublethal effects of the novel cis-nitromethylene neonicotinoid cycloxaprid on the cotton aphid Aphis gossypii Glover (Hemiptera: Aphididae)

open access: yesScientific Reports, 2018
Cycloxaprid is a novel cis-configuration neonicotinoid insecticide that is effective against a wide range of insect pests, including those that are resistant to conventional neonicotinoids.
Li Cui   +4 more
semanticscholar   +1 more source

Salicylate plant defences reduce aphid nutritional quality and increase predator consumption

open access: yesEcological Entomology, Volume 50, Issue 5, Page 933-943, October 2025.
Salicylic acid‐induced defences diminish Macrosiphum euphorbiae performance and nutritional quality by reducing body protein and lipid content. Ladybird beetle predators (Hippodamia convergens) consumed more low‐quality aphids compared to high‐quality aphids, exhibiting compensatory feeding response to nutrient‐deficient p prey.
Bijay Subedi   +4 more
wiley   +1 more source

The complete mitochondrial genome of Paracolopha morrisoni (Baker, 1919) (Hemiptera: Aphididae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
We have determined the mitochondrial genome of Paracolopha morrisoni (Baker, 1919), a gall-forming aphid collected from Korea. The circular mitogenome of Paracolopha morrisoni is 16,330 bp long including 13 protein-coding genes, 2 ribosomal RNA genes, 22
Jieun Lee   +4 more
doaj   +1 more source

Demographic parameters of Diuraphis noxia (Hemiptera: Aphididae) and Hippodamia variegata (Coleoptera: Coccinellidae) recorded in the context of D. noxia infesting resistant and susceptible cultivars of wheat

open access: yesEuropean Journal of Entomology, 2015
The Russian wheat aphid (RWA), Diuraphis noxia (Kurdjumov), is a serious pest of small grains and can cause losses of about 80% in wheat yields. Chemical control is ineffective against this pest so the combined use of host plant resistance and biological
Leila ZANGANEH   +2 more
doaj   +1 more source

The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach

open access: yesInsect Molecular Biology, Volume 34, Issue 5, Page 632-644, October 2025.
Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Jessica Cristina Silva Martins   +7 more
wiley   +1 more source

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