[EBOOK] Insect Pests Of Rice, M. D. Pathak and Z. R. Khan, IRRI

The world rice crop is attacked by more than 100 species of insects; 20 of them can cause economic damage. Insect pests that can cause significant yield losses are stem borers; leafhoppers and planthoppers (which cause direct damage by feeding as well as by transmitting viruses); gall midges, a group of defoliating species (main1y lepidopterans); and a grain-sucking bug complex that feeds on developing grains.

Average yield loss due to various insect pests in Asia-wheremore than 90% of the world's rice is produced—is about 20%. Any decrease in pest damage means a corresponding increase in needed rice production.

Reduction in insect pest damage should come from incorporating genetic resistance into new genotypes and from the development of suitable cultural and biological control methods. The first edition of this book, published in 1967, contained basic information on the biology and factors of abundance of common insect pests of rice. Since then, due to the introduction of high-yielding modern varieties, distinct changes have occurred in the insect pest complex of rice. Several species, once considered minor pests, have become major pests. Also, much information on various aspects of control, including integrated pest management, has become available.

This new edition includes updated information on biology, damage, seasonal history and factors of abundance, and control measures of the major insect pests of rice. IRRI hopes this expanded content will prove useful to researchers, extension workers, and students everywhere.

Many people were involved in the production of this book. N.J. Fernandez, A.D. Tan, and F.F.D. Villanueva helped compile the text, references, and tables; A.T. Barrion validates scientific names of insect pests; E. Panisales provided artwork; and M.L.P. Abenes provided photographic services. The volume was edited by W.H. Smith and G.S. Argosino.

[EBOOK] Insect Pests Of Rice, M. D. Pathak and Z. R. Khan, IRRI

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