Russian Wheat Aphid Biotypes
Field Screening of Lesotho and South African Wheat Cultivars for Russian Wheat Aphid Resistance
... when wheat is ready for harvesting. There is no Russian wheat aphid management program, neither through insecticide use nor resistant cultivars, in ...against Russian wheat ...
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Genetic Variation Within and Between Russian wheat aphid, Diuraphis noxia (Kurdjumov), Biotypes Found in the United States
... in Russian wheat aphids from Iran were also homozygous (Dolatti et ...the Russian wheat aphids I tested (Figure ...the Russian wheat aphid biotypes in the United ...
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Evaluation of Dryland Wheat Cultivars on the Market in South Africa for Resistance against Four Known Russian Wheat Aphid, Diuraphis noxia, Biotypes in South Africa
... female aphid from each sample collected in the field was transferred to a wheat plant and caged (gauze size: 315 micron) to produce a clone ...susceptible wheat Tugela showed susceptible damage ...
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Virulence of Russian Wheat Aphid, Diuraphis Noxia (Kurdjumov) (Homoptera: Aphididae) Populations in Kenya
... of wheat, barley and other small grains in ...the aphid has become an important pest of barley, Hordeum vulgare ...and wheat, Triticum aestivum ...rolled wheat leaves may limit the ...
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Genome of Russian wheat aphid an economically important cereal aphid
... sequenced aphid, ...Aphididae) biotypes (SA1 and SAM), obtained after sequencing the genomes of the only two ...noxia biotypes with documented linked ...
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The biological characteristics and distribution of the greenbug, Schizaphis graminum, and Russian wheat aphid, Diuraphis noxia (Hemiptera: Aphididae), in Argentina and Chile
... (Russian wheat aphid, RWA) were collected from several localities in Argentina and Southern ...tests. Biotypes were characterized on the basis of aphid antibiosis and host plant ...The ...
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Comparative study of the feeding damage caused by the South African biotypes of the Russian wheat aphid (Diuraphis noxia Kurdjumov) on resistant and non-resistant lines of barley (Hordeum vulgare L.)
... virulent aphid biotype, RWASA2, which was discovered in the field because of its ability to feed and reproduce on wheat containing the Dn1 gene resistance developed against RWASA1, also exhibited an altered ...
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Accessing a Russian Wheat Aphid Resistance Gene in Bread Wheat by Long-Read Technologies.
... RWA biotypes have rendered previously resistant cultivars susceptible, which has stimulated an intensive search for novel sources of resistance as well as efforts to unravel the mechanisms underlying the ...no ...
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Studies on the integrated control of the Russian wheat aphid, Diuraphis Noxia (Kurdjumov) (Hemiptera: Aphididae), using entomopathogenic fungi combined with sublethal doses of insecticides.
... The Russian wheat aphid (RWA), Diuraphis noxia (Kurdjumov) (Hemiptera: Aphididae), is one of the most damaging aphid pests of wheat grown under dryland ...breed wheat varieties ...
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Russian wheat aphid biotype RWASA2 causes more vascular disruption than RWASA1 on resistant barley lines
... African biotypes of the Russian wheat aphid, RWASA1 and RWASA2, were obtained from the Agricultural Research Council (ARC), Small Grain Institute, Bethlehem, South ...
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Effects of sustained Russian wheat aphid (Diuraphis noxia Mordvilko) feeding on leaf blades of wheat (Triticum aestivum L. cv Adamtas)
... They are similar in structure to the intermediate bundles and have often been classified as such merely by the absence of spatial association with hypodermal sclere[r] ...
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A Review on Distribution, Biology and Management Practice of Russian Wheat Aphid Diuraphis noxia (Mordvilko) (Hemiptera:Aphididae), in Ethiopia
... At present in Ethiopia, RWA found in all barley growing areas of the country, with varying degrees of barley destruction. In Ethiopia, RWA infestation often starts at the early seedling growth stage, and as damage ...
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Exploring aphid-virus-wheat interactions using current wheat varieties, aphid control techniques and vector surveys
... The aphid stylet mouthparts search the plant for vascular tissue and determine host suitability [Tjallingii ...the aphid finds the phloem, it stops secreting the hard, protective sheath saliva and begins to ...
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Wheat nitrogen fertilisation effects on the performance of the cereal aphid Metopolophium dirhodum
... It is difficult to make direct comparisons between this study and others when so many aspects differ: rate and form of N applied; aphid species studied; plant species, type (monocotyledon or dicotyledon) and ...
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Evaluation of Barley Varieties against Russian Wheat Aphid (Diuraphis noxia M.) under Greenhouse Condition
... of Russian wheat aphid on yield and yield components of field grown susceptible and resistant spring barley showed highly resistant lines increased yield components and grain yield (average grain ...
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DNA COMPARISONS AMONG SOME BIOTYPES OF WHEAT
... squarrosa (thought to carry the D genome of hexaploid wheat), tetraploid wheat (thought to carry the A and B genomes of hexaploid wheat) and hexaploid wheat (A, B and D geno[r] ...
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Different sources of resistance in soybean against soybean aphid biotypes
... the aphid saliva with the molecular interactions of saliva proteins and ...for aphid- induced resistance and they also found the systematic nature of this kind of resistance in ...and aphid stylets ...
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Multiple aphid resistance from alien sources and its chromosomal location in bread wheat
... affect wheat production, with aphids being important insect pests. The aphid species that commonly attack wheat are Schizaphis graminum, Rhopalosiphum padi, Sitobion avenae, Diuraphis noxia and ...
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Aphid resistance in wheat varieties
... in aphid preference several were more preferred than ...orange wheat blossom midge resistant variety Robigus, where the settlement was lower by 27%, but not significant compared to ...
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Geographic Distribution of Soybean Aphid Biotypes in the United States and Canada during 2008–2010
... soybean aphid popula- tions by year on the basis of virulence reaction to soybean indicator ...soybean aphid populations with no prior specification of the number of clusters present in the ...soybean ...
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