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Biological characteristics of biotypes of the delphacid Nilaparvata lugens and the cicadellids Nephotettix virescens and N. nigropictus, which are important pests of rice in Asia, are reviewed. Biotypes of Nilaparvata lugens have previously been recognized on the basis of the damage which they...

Ramakrishnan, U.
Proceedings of the Indian Academy of Sciences, Animal Sciences, 1987, 96, 5, pp 551-559