Biological Studies of a New Greenbug Biotype

1 December 1961

journal article
research article
Published by Oxford University Press (OUP) in Journal of Economic Entomology

Vol. 54 (6) , 1171-1173
https://doi.org/10.1093/jee/54.6.1171

Abstract

A greenbug (Toxoptera graminum (Rondani)) biotype has developed in greenhouse cultures at Stillwater, Okla. 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, whereas those of the new biotype remained normal.

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