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Abstract: The rice water weevil (RWW) Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae) is an invasive insect pest of rice Oryza sativa L. in China. Little is known about the interactions of this weevil with indigenous herbivores. In the present study, adult feeding and population density of the weevil, injury level of striped stem borer Chilo suppressalis (Walker) (Lepidoptera: Pyralidae) and pink stem borer Sesamia inferens (Walker) (Lepidoptera: Noctuidae) to rice, as well as growth status of their host plants were surveyed in a rice field located in Southeastern Zhejiang, China, in 2004 with the objective to discover interspecific interactions on the rice. At tillering stage, both adult feeding of the weevil and injury of the stem borers tended to occur on larger tillers (bearing 5 leaves) compared with small tillers (bearing 2~4 leaves), but the insects showed no evident competition with each other. At booting stage, the stem borers caused more withering/dead hearts and the weevil reached a higher density on the plants which had more productive tillers and larger root system; the number of weevils per tiller correlated negatively with the percentage of withering/dead hearts of plants in a hill. These observations indicate that interspecific interactions exist between the rice water weevil and the rice stem borers with negative relations occurring at booting or earlier developmental stages of rice.

[1] Dale, D., 1994. Insect Pests of the Rice Plant—Their Biology and Ecology. In: Heinrichs, E.A. (Ed.), Biology and Management of Rice Insects. Wily Eastern Ltd., New Delhi, p.363-485.

[2] Jiang, M.X., Cheng, J.A., 2003. Interactions between the striped stem borer Chilo suppressalis (Walk.) (Lep., Pyralidae) larvae and rice plants in response to nitrogen fertilization. Anzeiger für Schädlingskunde-J. Pest Sci., 76(5):124-128.

[3] Lee, I.Y., Uhm, K.B., 1993. Landing, Settling and Spreading of the Rice Water Weevil in Korea. In: Hirai, K. (Ed.), Establishment, Spread, and Management of the Rice Water Weevil and Migratory Rice Insect Pests in East Asia. NARC, Tsukuba, p.42-57.

[4] Lu, S.F., 1987. Studies on the compensation of rice to the larval damage caused by the Asian rice borer (Chilo suppressalis (Wk)). Sci. Agric. Sin., 20(2):67-72 (in Chinese).

[5] Rubia, E.G., Heong, K.L., Zalucki, M., Gonzales, B., Norton, G.A., 1996. Mechanisms of compensation of rice plants to yellow stem borer Scirpophaga incertulas (Walker) injury. Crop Prot., 15(4):335-340.

[6] Saito, T., Hirai, K., Way, M.O., 2005. The rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae). Appl. Entomol. Zool., 40(1):31-39.

[7] Shi, S.W., Jiang, M.X., Shang, H.W., Lv, H.P., Cheng, J.A., 2007. Oogenesis in summer females of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in southern Zhejiang, China. J. Zhejiang Univ. Sci. B, 8(1):33-38.

[8] Sun, J.Z., Du, Z.W., 1992. The structure and dynamics in space, number and time of damaged rice in paddy fields infested by the striped rice borer Chilo suppressalis Walker. Acta Entomol. Sin., 35(2):187-194 (in Chinese).

[9] Tindall, K.V., Stout, M.J., 2001. Plant-mediated interactions between the rice water weevil and fall armyworm in rice. Entomol. Exp. Appl., 101(1):9-17.

[10] Tindall, K.V., Stout, M.J., Williams, B.J., 2004. Evaluation of the potential role of glufosinate-tolerant rice in integrated pest management programs for rice water weevil (Coleoptera:Curculionidae). J. Econ. Entomol., 97(6):1935-1942.

[11] Way, M.O., 1990. Insect Pest Management in Rice in the United States. In: Grayson, B.T., Green, M.B., Copping, L.G. (Eds.), Pest Management in Rice. Elsevier Applied Science Publishers, Barking, UK, p.181-189.

[12] Way, M.O., Grigarick, A.A., Mahr, S.E., 1983. Effects of rice plant density, rice water weevil (Coleoptera: Curculionidae) damage to rice, and aquatic weeds on aster leafhopper (Homoptera: Cicadellidae) density. Environ. Entomol., 12(3):949-952.

[13] Zhai, B.P., Cheng, J.A., Huang, E.Y., Shang, H.W., Zheng, X.H., Wu, J., Fang, Y.J., Xia, W.Q., Lu, X.J., 1997. Population dynamics of rice water weevil in double rice cropping area of Zhejiang Province, China. Sci. Agric. Sin., 30(6):23-29 (in Chinese).

[14] Zhai, B.P., Shang, H.W., Cheng, J.A., Zheng, X.H., 1999. Constitution of the autumn population of rice water weevils in double cropping rice area of Zhejiang Province, China. Acta Phytophylacica Sinica, 26(3):193-196 (in Chinese).

[15] Zou, L., Stout, M.J., Dunand, R.T., 2004. The effects of feeding by the rice water weevil, Lissorhoptrus oryzophilus Kuschel, on the growth and yield components of rice, Oryza sativa. Agric. Forest Entomol., 6(1):47-53.