Abstract
The brown planthopper (BPH), Nilaparvata lugens, is the most important pest of rice world wide (Oercke, 1994). Natural resistance offers an inexpensive and environmentally benign form of pest management, but to use resistance most effectively it is necessary to understand the mechanism. Previous studies have shown that the feeding behaviour of BPH on different resistant rice varieties is not related to the wide variety of so-called resistance genes (Padgham et al., 1989). There appear to be at least two major components of resistance. The most common, including that in the variety ‘Ratthu Heenati’, is in the phloem (Padgham et al., 1989; Kimmins, 1989). In the two other resistant varieties studied in this paper, BG300 and BG379/2, the mechanism is derived from ‘Ratthu Heenati’ thus one might expect it to be the same. The second component, which is reported only for variety IR46 is increased surface activity of BPH attributed to leaf surface waxes (Woodhead & Padgham, 1988).
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© 1996 Kluwer Academic Publishers
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Stevenson, P.C., Kimmins, F.M., Grayer, R.J., Raveendranath, S. (1996). Schaftosides from rice phloem as feeding inhibitors and resistance factors to brown planthoppers, Nilaparvata lugens . In: Städler, E., Rowell-Rahier, M., Bauer, R. (eds) Proceedings of the 9th International Symposium on Insect-Plant Relationships. Series Entomologica, vol 53. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1720-0_56
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DOI: https://doi.org/10.1007/978-94-009-1720-0_56
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