suppressalis Bacillus thuringiensis Several thousand tillers of each of the five weedy grasses were dissected over a 13-month period. Only four Chilo . suppressalis larvae or pupae were found: three on E. crus-galli and one on E. colona . Stem borer C. suppressalis generally does not use these hosts in the field. The pink stem borer, Sesamia inferens (Walker) (: Noctuidae), a minor pest of , was frequently collected from E. crus-galli (63 specimens) and occasionally from E. colona , E. indica , and I. rugosum (4-5 specimens each). There was relatively little difference among the six plant species in C. suppressalis larval survival after four days on stem pieces. All C. suppressalis recovered on the weedy grasses after 25 days were third instars, with the exception of four pupae found on E. indica Chilo suppressalis Chilo suppressalis Oryza sativa Chilo suppressalis Scirpophaga incertulas S. incertulas Oryza C. suppressalis Bacillus thuringiensis et al C. suppressalis et al et al C. suppressalis et al

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C. C. suppressalis suppressalis et al C. suppressalis et al C. suppressalis C. suppressalis ° Echinochloa crus-galli hispidula Echinochloa colona Ischaemum rugosum repens Chilo suppressalis C. suppressalis. Chilo suppressalis C. suppressalis E. crus-galli E. colona C. suppressalis

Echinochloa C. suppressalis P. Enosima repens Echinochloa P. repens Sesamia inferens Chilo suppressalis E. crus-galli E. colona C. suppressalis E. indica I. rugosum E. indica Chilo suppressalis Echinochloa Echinochloa Eleusine Ischaemum Panicum colona crus-galli indica rugosum repens Chilo suppressalis Echinochloa colona ± ± Echinochloa crus-galli ± ± Eleusine indica ± ± Ischaemum rugosum ± ± Panicum repens ± ± Oryza sativa ± ± ± P

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Chilo suppressalis Echinochloa colona ± ± ± ± Echinochloa crus-galli ± ± ± ± Eleusine indica ± ± ± ± Ischaemum rugosum ± ± ± ± Panicum repens ± ± ± ± Oryza sativa ± ± ± ± ± P C. suppressalis et al C. suppressalis C. suppressalis Chilo C. suppressalis C. suppressalis C. suppressalis Chilo suppressalis Oryza O. rufipogon O. nivara et al O. sativa C. suppressalis C. suppressalis et al C. suppressalis O. rufipogon O. nivara C. suppressalis C. suppressalis C. suppressalis Chilo C. suppressalis O. sativa C. C. suppressalis Zizania suppressalis latifolia

et al Z. latifolia C. C. suppressalis suppressalis Z. latifolia C. suppressalis S. incertulas et C. suppressalis al C. suppressalis Z. latifolia Enosima International Rice Chilo suppressalis Research Notes Japanese Journal of Applied Entomology and Zoology Biology of striped stem borer, (Walker), in relation to resistance Chilo management for transgenic Science and (Bt)-rice. its Application Insect pests of rice Oryza Journal of Plant Protection in the Tropics Journal of Applied Ecology Annual Review of Entomology Chilo Bulletin of the Hokkaido Prefecture Agricultural Experiment Weeds of rice of . Station The wild relatives of rice: a genetic World bibliography resources handbook of rice stem borers, 1794-1990 Chilo suppressalis Japanese Journal of Applied Bacillus thuringiensis Entomology and Zoology Journal of Economic Entomology

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SUMMARY IN VIETNAMESE ưư ư ư ưư ư Echinochloa crus-galli E. colona Eleusine indica Ischaemum rugosum Panicum repens ư E. crus-galli E. colona ư ư ư ưư ư