1. Abbott E. V. & Tippett R. L. 1966 Strains of sugarcane mosaic virus. (Technical bulletin no. 1340.) Washington D .C .: U.S. Department of Agriculture.
2. Achtemeier G. L. Ackerman B. Hendrie L. K. Irwin M. E. Larkin R. Liquido N. Mueller E. A. Scott R. W. Steiner W. & Voegtlin D. J. 1987 The pests and weather project. (227 pages.) Report ILENR/RE-AQ87/1 of the Illinois Department of Energy and Natural Resources.
3. Anon. 1981 Test on the releasing and recapturing of marked planthoppers Nilaparvata Iugens and Sogatellafurcifera. Acta ecol. sinica 1 49-53. [In Chinese.]
4. The beet leafhopper and the curly-leaf disease that it transmits;Ball E. D.;Bull. Utah Agric. Coll. Expl. Stn,1917
5. Berger P. H. Zeyen R.J. & Groth J. V. 1987 Aphid retention of maize dwarf mosaic virus (potyvirus): epidemiological implications. Ann. appl. Biol. I l l 337-344.