Aphis glycines Matsumura, the soybean aphid, first arrived in North America in 2000 and
has since become the most important insect pest of domestic soybean, causing significant …

Plants may also be resistant to arthropods via the tolerance category of resistance, as
defined in Chapter 1, by possessing the ability to withstand or recover from damage caused …

The genetic resources of cereal crops in terms of resistance to aphids are reviewed.
Phytosanitary destabilization led to a significant increase in the harmfulness of this group of …

Biotypic diversity of the greenbug, Schizaphis graminum (Rondani)(Hemiptera: Aphididae),
was assessed among populations collected from cultivated wheat, Triticum aestivum L., and …

Debate still continues around the definition of generalism and specialism in nature. To
some, generalism is equated solely with polyphagy, but this cannot be readily divorced from …

The biotypic diversity of the Russian wheat aphid, Diuraphis noxia (Kurdjumov)(Hemiptera:
Aphididae), was assessed in five isolates collected in Colorado. Three isolates, RWA 1 …

Abstract Greenbug, Schizaphis graminum (Rondani), is a major insect pest of wheat and
sorghum on the southern Great Plains. In this review, we outline greenbug life history and …

Abstract 1 When aphid clones and clonality are discussed, it is still often said that they are
'genetically identical', a statement for which there is no direct evidence, and certainly not for …

Barley yellow dwarf virus (BYDV) is one of the most important viral diseases of small grains
worldwide. An understanding of its epidemiology is crucial to control this disease in a …

Russian wheat aphid, Diuraphis noxia (Kurdjumov)(Hemiptera: Aphididae) was recorded for
the first time in South Africa in 1978. In 2005, a second biotype, RWASA2, emerged, and …