Techniques to screen sorghums for resistance to insect pests

Sharma, H C and Bhagwat, V R and Padmaja, P G (2008) Techniques to screen sorghums for resistance to insect pests. In: Sorghum improvement in the new millennium. International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Andhra Pradesh, India, pp. 31-49. ISBN 978-92-9066-512-0

PDF - Published Version
Download (857kB) | Preview


Sorghum is an important cereal crop in Asia, Africa, Americas and Australia. Grain yields on farmers’ fi elds in Asia and Africa are generally low (500−800 kg ha-1) mainly due to insect pest damage. Nearly 150 insect species have been reported as pests on sorghum (Sharma 1993), of which sorghum shoot fl y (Atherigona soccata), stem borers (Chilo partellus, Busseola fusca, Eldana saccharina and Diatraea spp.), armyworms (Mythimna separata, Spodoptera frugiperda and S. exempta), shoot bug (Peregrinus maidis), aphids (Schizaphis graminum and Melanaphis sacchari), spider mites (Oligonychus spp.), grasshoppers and locusts (Hieroglyphus, Oedaleus, Aliopus, Schistocerca, and Locusta), sorghum midge (Stenodiplosis sorghicola), mirid head bugs (Calocoris angustatus and Eurystylus oldi), and head caterpillars (Helicoverpa, Eublemma, Cryptoblabes, Pyroderces, and Nola) are the major pests worldwide. Other insects reported to be damaging sorghum are of regional/local importance. Annual losses due to insect pests differ in magnitude on a regional basis. They have been estimated to be $1,089 million in the semi-arid tropics (SAT), $250 million in United States, and $80 million in Australia (ICRISAT 1992). In India, nearly 32% of sorghum crop is lost due to insect pests (Borad and Mittal 1983).

Item Type: Book Section
Subjects: Mandate crops > Sorghum
Depositing User: Users 6 not found.
Date Deposited: 11 Oct 2011 03:44
Last Modified: 11 Oct 2011 03:44
Acknowledgement: UNSPECIFIED
View Statistics

Actions (login required)

View Item View Item