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Varietal resistance to rice stem-borers in Asia

Published online by Cambridge University Press:  19 September 2011

R. C. Chaudhary
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
G. S. Khush
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
E. A. Heinrichs
Affiliation:
International Rice Research Institute, P.O. Box 933, Manila, Philippines
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Abstract

About 20 species of borers are rice pests. Of these, five—yellow borer, striped borer, white borer, dark-headed borer, and pink borer—are of economic importance. Yellow borer and striped borer occur most widely in Asia and cause serious yield losses.

Varietal resistance to these two species has been investigated during the last 30 years. Field and greenhouse screening techniques have been developed and numerous germplasm entries have been evaluated for resistance. Several hundred varieties with low to moderate levels of resistance have been identified. Except for several wild species of Oryza, germplasm with a high level of resistance has not been found.

Information available to date indicates that the resistance is under polygenic control. Moderate levels of resistance from several donor parents have been incorporated into improved varieties. Some of these moderately resistant varieties, for example, IR20, IR36, IR50, Ratna and Chandina, are widely grown and play an important role in integrated pest management programs for stem-borer control. Efforts to develop cultivars with levels of resistance higher than presently grown varieties are under way using the diallel selective mating system and the male sterile facilitated recurrent selection schemes.

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Mini-Review Article
Copyright
Copyright © ICIPE 1984

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References

REFERENCES

Ahmad, I., Afzal, M. and Khan, M. A. M. (1979) Factors limiting survival of the hibernating paddy stem borer larvae in Lower Sind. Chemosphere 8, 569574.CrossRefGoogle Scholar
Akinsola, E. A. (1973) Resistance to the yellow stem borer, Tryporyza incertulas (Walker) in rice varieties. MSc. thesis, University of the Philippines, Los Banos.Google Scholar
Alam, M. Z. (1967) Insect pests of rice in East Pakistan. In Major Insect Pests of the Rice Plant, pp. 643655. John Hopkins University Press, Baltimore, MD.Google Scholar
Alam, S. (1975) Insect-pests of deep water rice in Bangladesh and their control. In Bangladesh Rice Research Institute, Proc. International Seminar on Deep Water Rice, August 21–26, 1974, Dacca, pp. 194198.Google Scholar
Alam, S. and Catling, H. D. (1977) Preliminary observations of deep water rice pests in Bangladesh. In International Rice Research Institute, Proc. Deep Water Rice Workshop, 8–10 November 1976, Bangkok, pp. 205210.Google Scholar
Alam, M. Z., Alam, M. S. and Abbas, M. (1972) Status of different stem borers as pests of rice in Bangladesh. IRC Newsl. 21, 1517.Google Scholar
Alam, S. and Quaraishi, N. (1976) Species composition of rice stem borers and their seasonal abundance at Joydebpur, Dacca. Paper 1st Bangladesh Sci. Conf., Dacca, 3 pp.Google Scholar
All India Coordinated Rice Improvement Project (1968) Progress Report. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1969) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1970) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1971) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1972) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1973) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1974) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1975) Progress Reports, Vols I, III. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1976) Progress Report. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1977) Progress Report. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1978) Progress Report. ICAR, New Delhi.Google Scholar
All India Coordinated Rice Improvement Project (1980) Progress Report. ICAR, New Delhi.Google Scholar
Anonymous (1966) Studies on the control of paddy stem borer (Tryporyza incertulas Walker) in Ceylon. Plant Protect. Comm. for the South East Asia and Pacific Region Quart. Newsletter 9, 7.Google Scholar
Anonymous (1974) A summary of research work on rice insect pests at Kala Shah Kaku (Pakistan). Paper Internatl. Rice Res. Conf. V(9), 17. International Rice Research Institute, Los Banos, Philippines.Google Scholar
Athwal, D. S. and Pathak, M. D. (1972) Genetics of resistance to rice insects. In International Rice Research Institute, Rice Breeding, Los Banos, Philippines pp. 375386.Google Scholar
Ayyar, T. V. R. and Anantanarayana, K. P. (1937) The stem borer pest of rice (Schoenbius incertulas W.) in S. India. Agric. Livestock India 7, 171179.Google Scholar
Banerjee, S. N. (1951) Annual Progress Report for the Scheme for Investigations on Insect-Pests of Paddy. West Bengal Gov't Press, Calcutta.Google Scholar
Banerjee, S. N. (1964) Paddy pests. In Entomology in India, pp. 9297. Entom. Soc. of India.Google Scholar
Banerjee, S. N. and Pramanik, L. M. (1967) The lepidopterous stalk borers of rice and their life cycles in the tropics. In Major Insect Pests of Rice Plant, pp. 103124. John Hopkins University Press, Baltimore, MD.Google Scholar
Bess, H. A. (1976) Feasibility and problem of chemical control and biological control of rice stem borers. Mushi 39, 4550.Google Scholar
Catling, H. D., Alam, S. and Miah, S. A. (1978) Assessing losses in rice due to insects and diseases in Bangladesh. Expl Agric. 14, 277287.Google Scholar
Catling, H. D. and Islam, Z. (1979a) Stemborer incidence in the 1977 Bangladesh deep water rice crop. In International Rice Research Institute 1979, Proc. of the 1978 International Deep Water Rice Workshop, Los Banos, Phil. pp. 215225.Google Scholar
Catling, H. D. and Islam, Z. (1979b) Crop losses in deepwater rice due to yellow borer. Int. Rice Res. Newsl. 4, 1415.Google Scholar
Catling, H. D. and Islam, Z. (1981a) The problem of yellow borer in Asian deepwater rice. Paper presented at Deep Water Rice Workshop, Bangkok 2–6 November 1981.Google Scholar
Catling, H. D. and Islam, Z. (1981b) Screening Bangladesh deep water rices for yellow rice borer resistance. Paper presented at Deep Water Rice Workshop, Bangkok 2–6 November 1981.Google Scholar
Central Rice Research Institute (1960) Annual Report, Cuttack, India.Google Scholar
Central Rice Research Institute (1961) Annual Report, Cuttack, India.Google Scholar
Chaudhry, G. Q., Halimie, M. A. and Azhar, I. (1976) Population study of moths of rice stem borers in Gujranwala district, Pakistan. Rice ent. Newsl. 4, 2728.Google Scholar
Chaudhary, R. C., Heinrichs, E. A. and Khush, G. S. (1981) Increasing the level of stem borer resistance using male sterile facilitated recurrent selection in rice. Int. Rice Res. Newsl. 6, 78.Google Scholar
Das, Y. T. (1976) Cross resistance to stem borers in rice varieties. J. econ. Ent. 69, 4146.Google Scholar
Djamin, A. and Pathak, M. D. (1967) The role of silica in resistance to Asiatic rice borer, Chilo suppressalis (Walker) in rice varieties. Econ. Ent. 60, 347351.Google Scholar
Dutt, K. V. L. N., Seshu, D. V. and Shastry, S. V. S. (1978) Genetics of resistance to rice stem borer. Int. Rice Res. Newsl. 3, 11.Google Scholar
Dutt, K. V. L. N., Seshu, D. V. and Shastry, S. V. S. (1980) Inheritance of resistance to stem borer in rice. Ind. J. Genet. 40, 166171.Google Scholar
Dyck, V. A. and Varca, A. S. (1970) Biological control of rice stem borers; a review of work to date and plans for the future. IRRI Saturday Seminar paper. Aug. 15, 1970. 16 pp.Google Scholar
Fernando, H. E. (1967) Insect pests of rice in Ceylon. In Major Insect Pests of Rice Plant, pp. 575589. John Hopkins University Press, Baltimore, MD.Google Scholar
Fukaya, M. (1947) Fundamental studies on the forecasting outbreak of rice stem borer. III. Relation of the percentage of infested stems to the varieties of rice. Nogku Kenhkyu (Agric. Res.) 27, 9799.Google Scholar
Ghosh, B. N. (1960) A note on the resistance of boro paddy to stem borer infestation. Sci. Culture 25, 547548.Google Scholar
Ghosh, B. N. (1962) Note on the incidence of stem borer (Schoenobius incertulas Walker) on boro paddy under nitrogen fertilizers. Curr. Sci. 31, 472473.Google Scholar
Goot, P. van der (1925) Memd. Inst. Pe Siekt Bewitenz No. 66, (R.A.E.) (A) 13,466 p.Google Scholar
Hashida, N. (1964) II. Degrees of damage on rice plants, the wear of mandibles of rice stem borer, its weight and the shape of its feces. Agric. Hort. 39, 17291730.Google Scholar
Hattori, I. (1971) Stem borers of graminaceous crops in Southeast Asia. Paper Internatl. Symp. Rice Insects. Trop. AgriC. Res. 5, 145153.Google Scholar
Heinrichs, E. A. (1980) Varietal resistance to the brown planthopper and yellow stem borer. In Rice Improvement in China and other Asian Countries, IRRI, Los Banos, Philippines pp. 195217.Google Scholar
Heinrichs, E. A., Malabuyoc, L. and Vega, C. R. (1978) Evaluation of the 1977 International Rice Stem Borer Nursery at IRRI. Int. Rice Res. Newsl. 3, 78.Google Scholar
International Rice Research Institute (1963) Annual Report for 1961–1962. Los Banos, Philippines. 55 pp.Google Scholar
International Rice Research Institute (1964) Annual Report for 1963. Los Banos, Philippines. 199 pp.Google Scholar
International Rice Research Institute (1965) Annual Report for 1964. Los Banos, Philippines. 335 pp.Google Scholar
International Rice Research Institute ( 1966) Annual Report for 1965. Los Banos, Philippines. 357 pp.Google Scholar
International Rice Research Institute (1967) Annual Report for 1966. Los Banos, Philippines. 302 pp.Google Scholar
International Rice Research Institute (1968) Annual Report for 1967. Los Banos, Philippines. 308 pp.Google Scholar
International Rice Research Institute (1969) Annual Report for 1968. Los Banos, Philippines. 402 pp.Google Scholar
International Rice Research Institute (1970) Annual Report for 1969. Los Banos, Philippines. 266 pp.Google Scholar
International Rice Research Institute (1971) Annual Report for 1970. Los Banos, Philippines. 265 pp.Google Scholar
International Rice Research Institute (1972) Annual Report for 1971. Los Banos, Philippines. 238 pp.Google Scholar
International Rice Research Institute (1973) Annual Report for 1972. Los Banos, Philippines. 246 pp.Google Scholar
International Rice Research Institute (1974) Annual Report for 1973. Los Banos, Philippines. 266 pp.Google Scholar
International Rice Research Institute (1975) Annual Report for 1974. Los Banos, Philippines. 384 pp.Google Scholar
International Rice Research Institute (1976) Annual Report for 1975. Los Banos, Philippines. 479 pp.Google Scholar
International Rice Research Institute (1977a) Annual Report for 1976. Los Banos, Philippines. 418 pp.Google Scholar
International Rice Research Institute (1977b) Preliminary Report, First International Stem Borer Nursery, Los Banos, Philippines.Google Scholar
International Rice Research Institute (1978a) Annual Report for 1977. Los Banos, Philippines. 548 pp.Google Scholar
International Rice Research Institute (1978b) Preliminary Report, Second International Stem Borer Nursery, Los Banos, Philippines.Google Scholar
International Rice Research Institute (1979a) Annual Report for 1978. Los Banos, Philippines. p. 478.Google Scholar
International Rice Research Institute (1979b) Preliminary Report, Third International Stem Borer Nursery, Los Banos, Philippines.Google Scholar
International Rice Research Institute (1980a) Annual Report for 1979. Los Banos, Philippines. p. 538.Google Scholar
International Rice Research Institute (1980b) Standard Evaluation System for Rice. IRRI, Los Banos, Philippines. 44 pp.Google Scholar
International Rice Research Institute (1981) Annual Report for 1980. Los Banos, Philippines. p. 467.Google Scholar
Ishii, S., Hinano, C., Iwata, Y., Nakasawa, M. and Miyagawa, H. (1962) Isolation of benzoic and salicylic acids from the rice plants as growth-inhibiting factor for the rice stem borer, Chilo suppressalis (Walker) and some rice plant fungus pathogens. Jap. J. appi. ent. Zool. 6, 281288.Google Scholar
Ishikura, H. and Watanabe, Y. (1955) On the varietal difference in the infestation of rice plant by rice stem borer (Japanese). Bull. Shikoku Agric. exp. Stat.. 2, 138146.Google Scholar
Israel, P. (1967) Varietal resistance to rice stem borers in India. In The Major Insect-Pests of the Rice Plant, pp. 391403. John Hopkins University Press, Baltimore, MD.Google Scholar
Israel, P. (1968) Stem borers of rice. Paper All India Rice Res Workers– Conf 9, 5.Google Scholar
Israel, P. and Prakasa Rao, P. S. (1962) pH level and stem borer incidence in rice. Oryza 1, 8485.Google Scholar
Israel, P. and Padmanabhan, S. Y. (1977) Biological control of stem borers of rice in India. Final Tech. Ann. Rep. CRRI, Cuttack.Google Scholar
Israel, P., Vedamoorthy, G. and Rao, Y. S. (1959) Review of rice varieties showing resistance to pests. Rept VIII Meeting IRC Working Party on Rice Prod. and Protect. Ceylon.Google Scholar
Israel, P., Vademoorthy, G. and Rao, Y. S. (1961) Varietal resistance to gall midge Pachydiplosis oryzae Wood Mason and other insect pests of paddy. Working Paper No. 21, 4th Meeting Working Party on Rice Production and Protection, FAO, Int. Rice Comm., New Delhi, India, 5 pp. (mimeo).Google Scholar
Jensen, N. F. (1970) A diallel selective mating system for cereal breeding. Crop Sci. 10, 629635.Google Scholar
Jepson, W. F. (1954) A Critical Review of the World Literature on the Lepidopterous Stalk Borers of Tropical Graminaceous Crops. Commonwealth Institute of Entomology, London.Google Scholar
Jodon, N. E. and Ingram, J. W. (1948) Survey of rice varieties for possible resistance to stalk borers. Rice J. 51, 28.Google Scholar
Kanno, H. and Tatsuki, S. (1980) Disruption of sex pheromone communication in the rice stem borer moth, Chilo suppressalis Walker (Lepidoptera: Pyralidae) with sex pheremone components and their related analogues. Int. Symp. Problems Insect Pest Management Dev. Countries. B-1B-21. Aug. 6–7, 1980. TARC, Kyoto, Japan.Google Scholar
Kapur, A. P. (1967) Taxonomy of the rice stem borers. In Major Insect Pests of the Rice Plant, pp. 343. John Hopkins University Press, Baltimore, MD.Google Scholar
Kawada, A. (1942) On rice stem borer of rice varieties of southern Asia. Kagaku (Science) 12, 445446.Google Scholar
Kawada, A. and Kondo, T. (1943) On the borer resistance of the rice plants. Ikushu (Breedg Res.) 2, 934.Google Scholar
Khan, M. R. and Baloch, U. K. (1967) Varietal resistance to rice borers (Abs.). Proc. Pakistan Sci. Conf. 18/19, B41.Google Scholar
Khusakul, V., Saringkophaibul, S., Ruay-Aree, S. and Pattanasuhi, R. (1976) Current status of rice stem borers in Thailand and possibilities for integrated control. Rice ent. Newsl. 4, 31.Google Scholar
Khush, G. S. (1977) Disease and insect resistance in rice. Adv. Agron. 29, 265341.Google Scholar
Koehler, C. S. (1971) Stem borer problems in West Pakistan. Paper Int. Rice Res. Conf. 20, 9P.Google Scholar
Koshiary, M. A., Pan, C. I., Hak, G. E., Zaid, I. S. A., Azizi, A., Hindi, C. and Masoud, M. (1957) A study on the resistance of rice to stem borer infestations. IRC Newsl. 6, 2325.Google Scholar
Kovitvadhi, K. and Nilpanit, P. (1969) Study on varietal reaction of rice to stem borers, Tryporyza incertulas Walker, Ann. Rept. of Rice Div. Bangkok, 1969, pp. 525554.Google Scholar
Koyama, J. (1973) Studies on the diminution of insecticide application to rice stem borer, Chilo suppressalis Walker. I. The relation between damage caused by stem borer and the yield of rice. Jap. J. appi. ent. Zool. 17, 147153.Google Scholar
Kulshrestha, J. P., Kalode, M. B., Prakasa Rao, P. S., Misra, B. C. and Verma, A. (1970) High yielding varieties and the resulting changes in the pattern of rice pests in India. Oryza 7, 6164.Google Scholar
Kuwanga, S. (1930) Important insect pests of rice in Japan. Proc. IV. Pacific Sci. Cong. 4, 209216.Google Scholar
Lee, J., Kim, Y. H. and Park, J. S. (1978) Varietal resistance to striped rice borer, Chilo suppressalis. Int. Rice Res. Newsl. 3, 11.Google Scholar
Litsinger, J. A. (1979) Major insect-pests of rainfed-wetland rice in tropical Asia. Int. Rice Res. Newsl. 4, 1415.Google Scholar
Manwan, I. (1975) Resistance of rice varieties to yellow borer, Tryporyza incertulas (Walker). Ph.D. Thesis, Univ. Philippines, Los Banos.Google Scholar
Mathur, K. C. and Chaturvedi, D. P. (1978) Screening of certain rice cultivars for resistance to stem borers at flowering stage. Oryza 15, 221223.Google Scholar
Matsuo, T. (1952) Genecological studies on the cultivated rice. II. Varietal difference on damages by rice borer (in Japanese). Bull. natn. Inst. Agric. Sci. D. Ho. 3, 3039.Google Scholar
Munakata, K. and Okamoto, D. (1967) Varietal resistance to rice stem borers in Japan. In Major Insect Pests of Rice Plant, pp. 419430. John Hopkins University Press, Baltimore, MD.Google Scholar
Munakata, K., Saito Tetsuo Ogawa, S. and Ishii, S. (1959) Oryzanone, an attractant to the rice stem borer. Bull Agric, chem. Soc. Jap. 23, 6465.Google Scholar
Nakano, K., Abe, G., Taketa, N. and Hirano, C. (1961) Silicon as an insect resistance component of host plant, found in the relation between the rice stem borer and rice plant (in Japanese with English summary). Jap. J. appl. ent. Zool. 5, 1727.Google Scholar
Nickel, J. L. (1964) Biological control of rice stem borers: A feasibility study. Tech. Bull. No. 2, IRRI, Los Banos, Philippines. 111 pp.Google Scholar
Nilapanit, P. (1974) Study on varietal reaction of rice hybrids to rice stem borers: Tryporyza incertulas Walker, Chilo polychrysa Meyrick, Chilo suppressalis Walker, and Sesamia inferens Walker. Res. Rep. Thailand Dep. Agric. Ent. Zool. Plant Chem. Reg. Div. 1974(4), pp. 105108.Google Scholar
Okamoto, D. and Abe, Y. (1958) Varietal differences in rice stem borer infestation of rice. Nagoya Engei (Agric. Hort.) 33, 5859.Google Scholar
Okamoto, D. and Abe, Y. (1959) Varietal differences in rice stem borer infestation of rice. Report for 1958. Chugokugacihu-Shiyyo No. 34, pp. 1628.Google Scholar
Onate, B. T. (1965) Estimation of stem borer damage in rice fields. Phil. Statistician 14, 201221.Google Scholar
Padhi, G. and Prakasa Rao, P. S. (1978) Preliminary studies on reaction of some wild rices to infestation by the yellow rice borer, Tryporyza incertulas Walker. Oryza 15, 99101.Google Scholar
Pagden, T. (1930) A preliminary account of three rice stem borers. Malaya (Federation), Dept Agr. Sci. Ser. No. 1.Google Scholar
Paik, W. H. (1967) Insect pests of rice in Korea. In Major Insect Pests of Rice Plant, pp. 657674. John Hopkins University Press Baltimore, MD.Google Scholar
Patanakamjorn, S. and Pathak, M. D. (1967) Varietal resistance to asiatic rice borer, Chilo suppressalis (Walker) in rice and its association with various plant characters. Ann. ent. Soc. Am. 50, 287292.CrossRefGoogle Scholar
Pathak, M. D. (1964) Varietal resistance as a method of rice stem borer control. Int. Rice Commun. Newsl. 13, 1521.Google Scholar
Pathak, M. D. (1967a) Recent developments in and future prospects for the chemical control of the rice stem borer at IRRI. In Major Insect Pests of Rice Plant, pp. 335349. John Hopkins University Press, Baltimore, MD.Google Scholar
Pathak, M. D. (1967b) Varietal resistance to rice stem borers at IRRI. In Major Insect Pests of the Rice Plant, pp. 405418. John Hopkins University Press, Baltimore, MD.Google Scholar
Pathak, M. D. (1968) Ecology of common insect pests of rice. A. Rev. Ent. 13, 257294.Google Scholar
Pathak, M. D. (1969a) Insect Pests of Rice. IRRI, Los Banos, Philippines.Google Scholar
Pathak, M. D. (1969b) Stem borer and leafhopper-planthopper resistance in rice varieties. Entomologia exp. appl. 12, 789800.CrossRefGoogle Scholar
Pathak, M. D. (1970) Genetics of plant resistance in pest management. In Concept of Pest Management (Edited by Rabb, R. L. and Guthrie, F. E.), pp. 138157. N. C. State Univ., Raleigh.Google Scholar
Pathak, M. D. (1971) Resistance to insect pests in rice varieties. Oryza 8, 135144.Google Scholar
Pathak, M. D. (1977) Defense of the rice crop against insect pests. In The Genetic Basis of Epidemics in Agriculture, pp. 287295.Google Scholar
Pathak, M. D., Andres, F., Galacgac, N. and Ramos, R. (1971) Resistance of rice varieties to striped rice borer. IRRI Tech. Bull. 11, 69.Google Scholar
Pathak, M. D. and Saxena, R. C. (1980) Breeding approaches in rice. In Breeding Plants Resistant to Insects, pp. 421455. Wiley, New York.Google Scholar
Pawar, M. S., Reddy, R. and Murthu, S. (1959) Scope for breeding rice varieties to major pests. Proc. Rice Res Workers Conf. Cuttack, India, pp. 304305.Google Scholar
Pongprasert, S. and Purivirodkul, W. (1971) Screening for resistance to stem borers, gall midge in rice. Ann. Res. Rept. Rice Dept. Min. Agric., Bangkok, pp. 7686.Google Scholar
Pongprasert, S. and Purivirodkul, W. (1974) Screening for resistance to stem borers, gall midge in rice. Thailand Rice Dept. Res. Rep. 1971, 7687.Google Scholar
Pongprasert, S. and Suwanabutr, S. (1978) Screening for stem borer resistance in Thailand. Int. Rice Res. Newsl. 3, 10.Google Scholar
Pongprasert, S., Gunsee, S., Suwanbutr, S., Chinoros, P. and Weerapat, P. (1975) Screening for varietal resistance to major insect pests of rice in Thailand. Rice ent. Newsl. 2, 1821.Google Scholar
Prakasa Rao, P. S. (1977) Combined field resistance of some 1975 IRON entries to green leafhopper and stem borer at Cuttack, India. Int. Rice Res. Newsl. 2, 4.Google Scholar
Prakasa Rao, P. S., Rao, Y. S. and Israel, P. (1970) Problems and prospects in the chemical control of rice stem borers. Oryza 7, 89102.Google Scholar
Puttarudriah, M. (1946) Some observations made on the biology, habits and control of paddy stem borer (Schoenobius incertulas Walker). Mysore agric. J. 24, 49.Google Scholar
Rao, Y. S. and Israel, P. (1967) Recent development and future prospects from the chemical control of the rice stem borer in India. In Major Insect Pests of Rice, pp. 317324. John Hopkins University Press, Baltimore, MD.Google Scholar
Roy, J. K., Israel, P. and Pawar, M. S. (1969) Breeding for insect resistance in rice. Oryza 6, 3844.Google Scholar
Roy, J. K., Israel, P. and Pawar, M. S. (1971) Breeding for resistance to insect pests. Oryza 8, 129134.Google Scholar
Saroja, R. and Raju, N. (1981) Varietal reaction to rice stem borer under different nitrogen levels. Int. Rice Res. Newsl. 6, 7.Google Scholar
Sasamoto, K. (1961) Resistance to the rice plant applied with silicate and nitrogenous fertilizers to the rice stem borer, Chilo suppressalis (Walker). Proc. Fac. Liberal Arts and Educ. Yamanasaki Univ., Japan 3.Google Scholar
Seetharaman, R. and Shobha Rani, N. (1979) Improved rice varieties for different regions of India. Directorate of Extension, Min. Agri. Irri. Gov't of India, New Delhi, p. 79.Google Scholar
Seko, H. and Kato, I. (1950a) Studies on the resistance of rice to the attack of rice stem borer Chilo simplex Butl. I. Inter-relation between plant character and frequency of egg laying in the first generation of the stem borer (Prelim. report). Sakumotsugaku Kai Kiji (Proc. Crop Sci. Soc. Jap.) 19, 201203.Google Scholar
Seko, H. and Kato, I. (1950b) Studies on the resistance of rice plant against the attack of rice stem borer, Chilo simplex Butl. II. Inter-relation between plant character and larval intrusion in the first generation of rice stem borer (Preliminary report). Nippon Sakamotsugaku Kai Kiji (Proc. Crop Sci. Soc. Jap.) 19, 204206.Google Scholar
Seko, H. and Kato, I. (1950c) Studies on the resistance of rice plant against the attack of rice stem borer, Chilo simplex Butl. III. Inter-relation between plant character and the occurrence of incipient damages in first generation of rice stem borer (Preliminary report). Nippon Sakamotsugaku Kai Kiji (Proc. Crop Sci. Soc. Jap.) 19, 206208.Google Scholar
Shastry, S. V. S., Sharma, S. D., John, V. T. and Krishnaiah, K. (1971) New sources of resistance to pests and diseases in the Assam rice collections. IRC Newsl. 20, 116.Google Scholar
Shiraki, T. (1917) Paddy borer, Schoenobius incertulas Walk. Taihoku Agric exp. Stat.Google Scholar
Srivastava, S. K. (1979) Screening of indigenous rice cultivars against stem borer attack at flowering stage. Orvza 16, 155.Google Scholar
Singh, K. G. (1971) Recent progress in rice insect research in Malaysia. In Proc. Intl. Symp. on Rice Insects, pp. 109121. Tokyo.Google Scholar
Singh, K. G. and Soenardi, M. (1973) Insect pests of rice in Java, Indonesia. Int. Rice Commun. Newsl. 22, 2225.Google Scholar
Siwi, B. H. and Beachell, H. M. (1980) The GEU concept in Indonesia. In Rice Improvement in China and other Asian Countries, pp. 5164. IRRI, Los Banos, Philippines.Google Scholar
Soehardjan, M. (1974) Stem borer and gall midge infestations at different growth stages of the rice plant under field conditions. In Indonesia, Ministry of Agriculture, Agril. Cooperation, Indonesia-Netherlands, Research Reports 1968–1974, pp. 126130. Section II, Bogor.Google Scholar
Soejitno, J. (1976a) Screening for varietal resistance to rice stem borer, dry season 1973. CRIA Laporan Kemajuan Penelitian, Seri hamai/Penyakit 2, 116.Google Scholar
Soejitno, J. (1976b) Screening for varietal resistance to rice stem borer and rice gall midge, wet season 1973/74. CRIA Laporan Kemajuan Penelitian Seri hama/Penyakit 2, 1729.Google Scholar
Soejitno, J. (1976c) Screening for varietal resistance to rice stem borer under screenhouse condition, wet season 1974/75. CRIA Laporan Kemajuan Penelitian Seri hama/Penyakit 2, 3545.Google Scholar
Soejitno, J. (1976d) Screening for varietal resistance to rice stem borer and gall midge. CRIA Laporan Kemajuan Penelitian Seri hama/Penyakit 2, 4652.Google Scholar
Soejitno, J. (1977a) Screening for varietal resistance to rice stem borer, dry season 1975. CRIA Laporan Kemajuan Penelitian Seri hama/Penyakit 6, 1729.Google Scholar
Soejitno, J. (1977b) Screening for rice varietal resistance to rice stem borers, 1975/1976. CRIA Laporan Kemajuan Penelitian Seri hama/Penyakit 6, 3651.Google Scholar
Soenardi, J. (1967) Insect pests of rice in Indonesia In Major Insect Pests of the Rice Plant, pp. 675683. John Hopkins University Press, Baltimore, MD.Google Scholar
Subbarao, D. V. and Perraju, A. (1976) Resistance in some rice strains to first instar larvae of Tryporyza incertulas (Walker) in relation to plant nutrients and anatomical structure of the plants. Int. Rice Res. Newsl. 1, 1415.Google Scholar
Tsutsui, K. (1951) Bionomics of the rice stem borer and the resistance of the rice plant to the borer. Nogyo-gijutsu (Agric. Techn.) 6, 4043.Google Scholar
Tsutsui, K. (1954) Studies on environmental factors and aspect of damage of rice stem borer Chilo simplex Butl. in the second generation. Bull. Div. Plant Breed. Cultiv. Tokai Kinki natn. Agric, exp. Stat. 2, 6070.Google Scholar
Tsutsui, K., Saito, A., Tanaka, K., Tanimoto, S. and Anozi, S. (1957) Studies on the fluctuation of outbreak of the rice stem borer, Chilo suppressalis Wlk. on the paddy rice plant transplanted in early and late period. Bull. Div. Plant Breed. Cultiv., Tokai Kinki natn. Agric. exp. Stat. No. 4.Google Scholar
Van, T. K. and Guan, G. K. (1959) The resistance of Oryzae ridleyi Hook. to paddy stem borer (Chilo suppressalis Walk.) attack. Malayan agric. J. 42, 207210.Google Scholar
Velusamy, R., Janaki, I. P., Subramaniam, A. and Chandra, J. (1975) Varietal resistance to rice insect-pests. Rice ent. Newsl. 3, 1316.Google Scholar
Wada, E. (1942) On some characteristics of rice varieties of Southern Asia. Kagaku (Science) 12, 441444.Google Scholar
Weerapat, P., Pongprasert, S. and Suwanbutr, S. (1973) Breeding for resistance to rice stem borer, Tryporyza incertulas Walker. Res. Rep. Thailand Dept. Agric. Rice Div. 1973, 149166.Google Scholar
Weerapat, P., Pongprasert, S., Suwanbutr, S., Chinnoros, P., Kinsri, S., Sanguansat, T., Subsorn, M., Chongkid, B. and Woranimman, P. (1974) Breeding for resistance to rice stem borer, Tryporyza incertulas Walker. Ann. Res. Rep. Rice Dion. Min. Agric. and Coop. Bangkok, pp. 235249.Google Scholar
Yasumatsu, K. (1976) Rice stem borers. In Studies on Biological Control (Edited by V. L., De Lucchi), pp. 121137. IBP 9, Cambridge University Press, London.Google Scholar
Yunus, A. (1967) Insect pests of rice in Malaysia. In Major Insect Pests of the Rice Plant, pp. 617641. John Hopkins University Press, Baltimore, MD.Google Scholar
Zaman, S. M. H. (1980) Importance of the IRTP in BRRI–s varietal improvement work. In Rice Improvement in China and Other Asian Countries, pp. 251259. IRRI, Los Banos, Philippines.Google Scholar