Results 61 to 70 of about 31,208 (268)

Aphididae

open access: yes, 2015
Published as part of Zuparko, Robert L., 2015, Annotated Checklist of California Encyrtidae (Hymenoptera), pp.
openaire   +3 more sources

Density dependence of the alarm pheromone effect in pea aphids, Acyrthosiphon pisum (Sternorrhyncha: Aphididae)

open access: yesEuropean Journal of Entomology, 2007
The aphid alarm pheromone is known to trigger wing induction in pea aphids (Acyrthosiphon pisum). In reaction to alarm pheromone, aphids drop off the plant or walk away.
Grit KUNERT   +2 more
doaj   +1 more source

RAPD PCR Confirms Absence of Genetic Variation Between Insecticide Resistant Variants of the Green Peach Aphid, \u3ci\u3eMyzus Persicae\u3c/i\u3e (Homoptera: Aphididae) [PDF]

open access: yes, 2017
Previous allozyme analysis has revealed an apparent absence of enzyme variability in the green peach aphid, Myzus persicae (Sulzer). We are interested in determining the genetic relatedness of individual M persicae clones carrying different numbers of ...
Al-Aboodi, A., Ffrench-Constant, R. H
core   +1 more source

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

open access: yesInsect Molecular Biology, EarlyView.
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

Aphids (Hemiptera, Aphididae) Chapter 9.2

open access: yesBioRisk, 2010
Our study aimed at providing a comprehensive list of Aphididae alien to Europe. A total of 98 species originating from other continents have established so far in Europe, to which we add 4 cosmopolitan species of uncertain origin (cryptogenic). Th e 102 alien species of Aphididae established in Europe belong to 12 diff erent subfamilies, fi ve of them ...
Coeur d’Acier,Armelle   +2 more
openaire   +3 more sources

Effect of temperature on fecundity and development of the Giant Willow Aphid, Tuberolachnus salignus (Sternorrhyncha: Aphididae)

open access: yesEuropean Journal of Entomology, 2001
This study investigates the thermal requirements, nymphal development rates and the fecundity of both alate and apterous adults of the giant willow aphid, Tuberolachnus salignus (Gmelin) at several temperatures.
C. COLLINS, Simon R. LEATHER
doaj   +1 more source

A New Species of \u3ci\u3eAphis\u3c/i\u3e in Minnesota (Hemiptera: Aphididae) on Narrow-Leaved Purple Coneflower, \u3ci\u3eEchinacea Angustifolia\u3c/i\u3e [PDF]

open access: yes, 2018
Aphis echinaceae, n. sp. is described from specimens collected in Douglas County, Minnesota, on Echinacea angustifolia (DC.). The aphid is illustrated with biometric data for alate and apterous vivipara.
Lagos, D. M, Voegtlin, D. J
core   +1 more source

Metopolophium festucae cerealium (Hemiptera: Aphididae) : a new addition to the aphid fauna of North America [PDF]

open access: yes, 2013
Metopolophium festucae cerealium (Stroyan) (Hemiptera: Aphididae) was found in wheat fields in the Pacific Northwest in 2011 and 2012. This is the first record of M. f. cerealium in North America.
Eigenbrode, Sanford D.   +2 more
core   +1 more source

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

Effect of Pest Control Strategies on Arthropod Pests of Apple in Europe: A Meta‐Analysis

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Apple (Malus domestica Borkh.) is a major fruit crop in Europe. More than 200 phytophagous arthropod species thrive in European apple orchards, several of which are economically important pests. Due to the pest pressure on apple production, consumer demand for residue‐free products and current policies to make food production in the European ...
Ingrid Aline Bapfubusa Niyibizi   +2 more
wiley   +1 more source

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