RICE RATOONING - IRRI books - International Rice Research Institute

INSECT PESTS IN RATOON RICE 207• The ratoon is attractive to LF because that insect prefers reproductive-stagerice plants. LF probably is more attracted to larger leaves.• The ratoon is a favorable habitat for natural enemies, particularlypredators, because of the lack of land preparation. Spiders and ripple bugs,major hopper predators, tend to accumulate on the rice stubble after harvestand are better able to respond to initial hopper influx. Ratoon croppingmay enhance early biocontrol.• Flooding a field continuously is an insect pest predator conservationcultural practice.• Varieties highly resistant to virus diseases are necessary for ratoon stability.REFERENCES CITED1. Agarwal, R.A. 1969. Morphological characteristics of sugarcane and insect resistance. Entomol.Exp. Appl. 12:767-776.2. Cariño, F.O., P.E. Kenmore, and V.A. Dyck. 1979. The FARMCOP suction sampler for hoppersand predators in flooded rice fields. Int. Rice Res. Newsl. 4(5):21-22.3. Central Rice Research Institute. 1983. Entomology. Pages 58-71 in Technical report for the year 1982.Cuttack, India. 137 p.4. Chantaraprapha, N. 1985. Food preference and aquatic predators of the rice caseworms, Nymphuladepunctalis (Guenee), Paraponyx (= Nymphula) fluctuosaIis (Zeller), and Paraponyx (= Nymphula )diminutalis (Snellen). MS thesis, University of the Philippines at Los Baños, Laguna, Philippines.277 p.5. Chen, Ching-Chung, and E-sa Wang. 1978. Life history of and varietal resistance in rice plants to riceleaffolder Cnaphalocrocis medinalis Guenee. Taichung District Agriculture Improvement StationBull. 2:1-69.6. Chowdhuri, A.N. 1966. Heteronychus liodenes Redt: a new pest of early varieties of paddy inHimachal Pradesh. Sci. Cult. 32:153.7. Duport, L. 1925. Rapport sur quelques-unes des recherches poursuivies à la Station entomologiquede Cho-Ganh pendant l’ année 1924. Sta. ent. Cho-Ganh, Bull. périodique no. 22, 7 pp. Hanoi.English abstract in Rev. Appl. Entomol. 13:291, 1925.8. Fernando, H.E. 1967. Insect pests of rice in Ceylon. Pages 575-589 in Major insect pests of rice. JohnsHopkins Press, Baltimore, USA. 729 p.9. Ghose, R.L.M., M.B. Ghatge, and V. Subrahmanyan. 1960. Pests of rice. Pages 248-257 in Rice inIndia. 2d ed. Indian Council of Agricultural Research, New Delhi. 296 p.10. Hidaka, T., Precha Vunsilabutr, and Sawang Kadkao. 1974. Studies on ecology and control of ricegall midge in Thailand. Tropical Agricultural Research Center. Tech. Bull. 6, Tokyo, Japan. 113 p.11. Ho, Chyi-Chen, and Kang-Chen Lo. 1979. The survey of the host ranges of Steneostarsonemus spinki(Acari: Tarsonemidae) [in Chinese, with English summary]. National Science Council Monthly7:1022-1028.12. International Rice Research Institute. 1973. Annual report for 1972. P.O. Box 933, Manila,Philippines. 246 p.13. International Rice Research Institute. 1985. Annual report for 1984. P.O. Box 933, Manila,Philippines. 504 p.14. Israel, P., and P.S. Prakasa Rao. 1968. Management practices for the culture of varieties with highyield potential — influence of cultural practices on insect incidence. FAO International RiceCommission. Working Party on Rice Production and Protection. 12th session, 9-14 Sep 1968.Kandy, Sri Lanka. 9 p.15. Kalode, M.B. 1983. Leafhopper and planthopper pests of rice in India. Pages 225-245 in Proceedingsof the 1st international workshop on biotaxonomy, classification and biology of leafhoppers andplanthoppers (Auchenorrhyncha) of economic importance, 4-7 Oct 1982. W.J. Knight, N.C. Pant.T.S. Robertson, and M.R. Wilson, eds. Commonwealth Institute of Entomology, London. 500 p.16. Karim, A.N. 1969. Bionomics of rice whorl maggot, Hydrellia philippina Ferino (Diptera,Ephydridae) at the International Rice Research Institute, Philippines. 31 p. (mimeo.)