Biological studies of a new greenbug biotype
WebGreenbug, Schizaphis graminum (Rondani), populations over-summering on noncultivated grass hosts may be implicated in early fall infestations in wheat. The purpose of this study was to examine the relationship between over-summering greenbugs on noncrop hosts and fall infestations on wheat. Since greenbug populations on noncultivated hosts may also … WebMay 1, 2008 · Greenbug is classified into biotypes A through K, plus isolates identified in New York, Kansas, Texas, and Florida (Nuessly et al. 2008; Burd and Porter 2006;Porter et al. 1997). Biotypes E and...
Biological studies of a new greenbug biotype
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Web(Rondani), is important in predicting biotype shifts in the field, in laboratory genetic studies, or in determining the vulnerability of new resistance sources used in plant breeding programs. The greenbug holocycle was reviewed by Puterka and Peters (1990). They observed hatching of eggs resulting from controlled mat WebDec 1, 1988 · The study on inheritance of resistance to two greenbug biotypes in three oat accessions demonstrated that the PI 186270 and CI 1580 lines each carry one dominant …
Webnew sugarcane aphid biotypes from developing. Lastly since the use of classical biological control ... greenbug biotype on sorghum and wheat [37]. ... Web'Arthropod Biotypes' published in 'Plant Resistance to Arthropods'
WebJun 1, 2003 · Introduction. The greenbug, Schizaphis graminum (Rondani), feeds on a variety of graminaceous plants and is a serious pest of cultivated grasses (e.g., wheat, barley, and sorghum). Cultivated crop species represent a very small proportion of the 70 greenbug hosts representing 29 genera, (Michels 1986).Noncultivated hosts are an … WebClade 2 contained F, G and NY, and Clade 3 contained B, CWR and EUR, all of which are rarely found on crops. The rarest biotype, H, fell outside the above clades and may represent another Schizaphis species. S. graminum biotypes are a mixture of genotypes belonging to three clades and may have diverged as host-adapted races on wild grasses.
WebNov 12, 2015 · 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 biology, describe direct and ...
Webin biological control. ECONOMICALLY IMPORTANT BIOTYPES OF THE GREENBUG The greenbug has been collected from at least 78 species of Gramineae (Poaceae) and … criterion 2001+WebJul 10, 2009 · Extensive molecular genetic variation was found among biotype E clones, despite a lack of variation in additive genetic traits. Thus, biotype E populations are made … criterion 25aWebO - Institutional Repositories . O - Institutional Repositories . SHOW MORE criterion 2002+WebA greenbug ( Toxoptera graminum (Rondani)) biotype has developed in greenhouse cultures at Stillwater, Okla. It is capable of destroying the resistant wheat lines Dickinson … criterion 2022WebApr 1, 1993 · Greenbug, Schizaphis graminum (Rondani), an important vector of barley yellow dwarf mosaic virus, is a major pest of cereals in many countries. A preliminary survey conducted in the Punjab and North Western Frontier Province of Pakistan revealed medium to heavy infestations at Charsadda (density 12 apterous greenbugs/25 plants), Sher … manilla aveoWebThe full complement of known greenbug, Schizaphis graminum (Rondani), biotypes found in the USA were subjected to a molecular phylogenetic analysis based on a 1.2-kb … criterion 2023WebDec 1, 1961 · It is capable of destroying the resistant wheat lines Dickinson Sel 28-A., and C. L. 9058. When cultured on Dickinson Set 28-A for eight generations, greenbugs collected from field populations decreased in size, fecundity, and longevity, … criterion 2019 pinot noir