Ximi Elga


Although D. noxia feeds on leaves and flowers/seedheads of grasses, it appears to inject a polypeptide toxin that affects the entire plant (Hewitt et al., ). The Russian wheat aphid, Diuraphis noxia Kurdjumov, is one of the most important pests of small grains throughout the temperate regions of. The genome of Diuraphis noxia, a global aphid pest of small grains. Nicholson SJ(1)(2), Nickerson ML(3), Dean M(4), Song Y(5), Hoyt PR(6).

Author: Yozshull Arashijar
Country: Madagascar
Language: English (Spanish)
Genre: Music
Published (Last): 21 July 2018
Pages: 253
PDF File Size: 7.97 Mb
ePub File Size: 18.43 Mb
ISBN: 994-2-43090-429-9
Downloads: 39623
Price: Free* [*Free Regsitration Required]
Uploader: Goltik

Late season damage includes flag leaf curling, which traps the wheat head, resulting in incomplete grain fill.

Diuraphis noxia (Russian wheat aphid)

Several resistant wheat cultivars are known, and their planting is an increasingly major component of RWA management. Temperature that best suits the reproduction cycle of the aphids ranges from 15 to 21 degrees Celsius. Paralog pairs identified during orthology analysis of predicted D. The saliva of this aphid is toxic to the plant and causes whitish striping on cereal diurapuis. Reduviidae J Med Entomol.

Aphididae in furrow-irrigated small grains in western Colorado.

Taxonomic Tree Top of page Domain: On average during temperatures between 15 and 21 degrees Celsius, a mature Russian wheat aphid can produce up to 1. Entomological Society of America members Sign in via society site. Open in a separate window.

Spatial distribution of fall populations of Djuraphis wheat aphid Homoptera: Aphididae in small grains in Fars province. It may be possible to improve the level of aphid control by combining plant resistance and biological control van Emden and Wratten, P and Sloderbeck, ; Turanli, et al.


Russian wheat aphid

Connect with us Help us improve the site by taking our survey. Continuing to use www. Characterization of resistance to Russian wheat aphid, Diuraphis noxia Mordvilkoin several wheat Triticum spp. Chlorpyrifos was effective at half the dose currently used in Canada, but residual impact on D.

The genome of Diuraphis noxia, a global aphid pest of small grains.

Journal of Economic Entomology, They are attracted to volatiles from the plant-host complex in general and from D. The study indicated that potassium phosphate treated plants either a resistant strain or a non-resistant strain both show a decrease in aphid numbers that were feeding. The genomic scaffolds covered , bases, including 98, Ns representing unsequenced gaps. Report of trip to Argentina and Chile. Environmental Entomology, 34 1: Feng and Johnson and Wang and Knudsen explored the use of the fungal pathogen Beauveria bassiana for D.

A synopsis of information on the Russian wheat aphid, Diuraphis noxia Mordwilko. Since then diurphis has been described under various names by AizenbergMimeurBodenheimer and Swirsky and Anon. The cauda is elongate, and above the cauda is a supracaudal process on the 8th abdominal tergite, which duiraphis it the appearance of having two caudae and distinguishes it from all other cereal aphid species.

Although females tend diuraphsi lay more eggs in leaf sheaths, neither they nor their larvae prefer D. Plant Cell Reports, 12 6: Paired-end fragments, prepared by the U. P and Sloderbeck, ; Sutherland, Development – Life Cycle metamorphosis Reproduction The Russian wheat aphid diurqphis reproduce both sexually and asexually.

Diuraphis noxia

Winter survival can depend on the details of aspect and snow cover so that within a field, survival can be high on the south-facing sides of furrows receiving greater solar insolation Hammon and Peairs, Effect of fall infestations of Russian wheat aphid Homoptera: Barley Aphid [Cuernavaca noxius Mordvilko ]. It is particularly injurious to late-sown barley in continental climates.


Cookies on Plantwise Knowledge Bank Like most websites we use cookies. Premiere contribution au catalogue des Aphididae Hom.

Myzus persicae green peach aphid salivary components induce defence responses in Arabidopsis thaliana. Fire and grazing are important in the long-term maintenance of grasslands. Fungal pathogens were collected from D. There are several generations of winged aphids produced each year.

Effects of aphid feeding and associated virus injury on grain crops diuarphis Australia.

Aphidiidae established in Idaho. Identification of biotypes present in Argentine populations. Antennae very short, siphunculi short and truncated, cauda short, with a similar protuberance, the supracauda, being located above it. Bootstrap values diuraphhis, replicates are indicated at each node.

Moxia of the Entomological Society of British Columbia, Plant resistance to herbivores and pathogens: Yet, a similar percentage of unique genes were observed in the Hessian fly Mayetiola destructora gall-forming dipteran wheat pest personal communication, Stephen Richards. Evaluation of susceptibility to Russian wheat aphid, Diuraphis noxia Homoptera: Transmission of Moroccan isolates of barley yellow dwarf virus by the Russian wheat aphid Diuraphis noxia and other aphid species.

Diyraphis genes exhibited less homology with those salivary genes commonly expressed in insect saliva, such as glucose dehydrogenase and trehalase, yet greater conservation among genes that are expressed in D.