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	Authors Year Title Journal
3287	Morris, M.G. 1990 The Hemiptera of two sown calcareous grasslands: II. Differences between treatments. Journal of Applied Ecology 27(2): 379-393.
3288	Morris, M.G. 1990 The Hemiptera of two sown calcareous grasslands. III. Comparisons with the Auchenorrhyncha faunas of other grasslands. Journal of Applied Ecology 27(2): 394-409.
3352	Narayanasamy, P. and P. Baskaran. 1990 Karyomorphological studies of an Indian population of brown planthopper Nilaparvata lugens (Stal). Entomon 15(1-2): 99-102
8569	Wu, R.Z. 1990 The influence of the resistance of wild rice on ovarial development and copulation of the brown planthopper. Acta Phytophylacica Sinica 17(2): 133-137.
3450	Noda, H. 1990 Geographic variation of nymphal diapause in the small brown planthopper, Laodelphax striatellus. Shokubutsu Boeki 44(10): 437-441.
3454	Noda, T. and K. Kiritani. 1990 Landing places of migratory planthoppers. Shokubutsu Boeki 44(6): 281-284.
3459	Noda, H., H.B. Sun, T. Nose, and T. Matsui. 1990 Adult emergence rhythms of planthoppers Nilaparvata lugens and Laodelphax striatellus (Homoptera: Delphacidae). Japanese Journal of Applied Entomology and Zoology 34(1): 77-78. pdf
3460	Noda, H. and R. Tatewaki. 1990 Re-examination of chromosomes of three species of rice planthoppers (Homoptera: Delphacidae). Applied Entomology and Zoology 25(4): 538-540. pdf
3733	Raatikainen, M. and A. Vasarainen. 1990 Biology of Metadelphax propinqua (Fieber) (Homoptera: Delphacidae). Entomologica Fennica 1(3):145-149.
3826	Riley, J.R., D.R. Reynolds, A.D. Smith, X-n. Cheng, X-x. Zhang, G-m. Xu, J-y. Cheng, A-d. Bao, and B-p. Zhai. 1990 Using radar to observe brown planthopper (BPH) migration in China. International Rice Research Newsletter 15(2): 29-30. pdf
3827	Riley, J.R., J. Holt, and D.R. Reynolds. 1990 The role of migration in the pest status of brown planthopper in temperate and tropical areas. In: B.T. Grayson, M.B. Green and L.G. Copping (eds.). Pest Management in Rice. Elsevier for Society for Chemical Industry), London. P.166, Abstract.
3846	Roff, D.A. 1990 The evolution of flightlessness in insects. Ecological Monographs 60(4): 389-421.
3876	Rubia, E.G., E.R. Ferrer, and B.M. Shepard. 1990 Biology and predatory behavior of Conocephalus longipennis (de Haan) (Orthoptera: Tettigoniidae). Journal of Plant Protection in the Tropics 7(1): 47-5+iv.
3954	Saxena, R.C., A.A. Barrion. and A.S. Caoile. 1990 Morphology and reproduction of yeastlike endosymbiotes of the whitebacked planthopper, Sogatella furcifera (Horvath) (Homoptera: Delphacidae). Philippine Entomologist 8(2): 727-730.
4026	Settle, H.W. and L.T. Wilson. 1990 Invasion by the variegated leafhopper and biotic interactions: parasitism, competition, and apparent competition. Ecology 71: 1461-1470.
4040	Sharma, S. 1990 Record of Sogatella kolophan (Kirkaldy) a vector of Digitaria striate virus of grasses and cereals from rice in Nagaland, India. Bulletin of Entomology 31(1): 122-123.
4078	Shou, Z.B., and C.R. Cao. 1990 Studies on the population fluctuation of Nilaparvata lugens Stal and Sogatella furcifera (Horvath) on early rice. Entomological Knowledge 27(2): 67-72.
4083	Shukla, B.C. and S. Shrivastava 1990 Effect of weather factors on seasonal prevalence of rice white backed planthopper, Sogatella furcifera (Horvath). Indian Journal of Agricultural Research 24(2): 65-72.
4137	Sogawa, K. and T. Watanabe. 1990 Migration of the rice planthoppers in the post-Baiu season. Proceedings of the Association for Plant Protection of Kyushu 36: 90-94. [Japanese] pdf
4176	Spiller, N.J. 1990 An ultrastructural study of the stylet pathway of the brown planthopper Nilaparvata lugens. Entomologia Experimentalis et Applicata 54(2): 191-193.
4179	Srinivasa, N., C.A. Viraktamath, and T.S. Thontadarya. 1990 Influence of moon phase and weather on the light trap catches of insect pests of rice. Oryza 27(2): 183-190.
4180	Srinivas, P.R. and I.C. Pasalu. 1990 Occurrence of a fungal disease on brown planthopper of rice. Journal of Biological Control 4(1): 67.
4181	Stein, B. and K. Bogon. 1990 Zum Vorkommen der Bergzikade, Cicadetta montana. Insecta: Homoptera) in Nordhessen/Südniedersachsen und Westthüringen. Göttinger Naturkundliche Schriften 2: 65-72.
4202	Stresemann, E, H.J. Hannemann K. Klausnitzer-Band and K. Senglaub (eds.). 1990 Exkursionsfauna von Deutschland. Band 2/2. Wirbellose: Insekten. Zweiter Teil. 7. Auflage. Volk und Wissen Verlag, Berlin. .
4211	Strong, D. R., M.F. Antolin, and S. Rathbun. 1990 Variance and patchiness in rates of population change: a planthopper's case history. In: B. Shorrocks and I.R. Swingland, (eds.). Living in a patchy environment. Oxford University Press, Oxford. Pp. 75-90.

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