@article{icrisat2813,
           title = {Sources and Mechanisms of Resistance to Sorghum Head Bug, Eurystylus-Immaculatus Odh in West-Africa},
       publisher = {International Centre of Insect Physiology and Ecology, Nairobi, Kenya},
          author = {H C Sharma and Y O Doumbia and M Haidara and J F Scheuring and K V Ramaiah and N F Benenati},
           pages = {39--48},
            year = {1994},
          volume = {15},
         journal = {Insect Science and its Application},
          number = {1},
             url = {http://oar.icrisat.org/2813/},
        abstract = {Sorghum is one of the most important cereal crops in West Africa, and the head bug, Eurystylus immaculatus Odh. (Hemiptera: Miridae) is the key pest of grain sorghum in this region. A range of sorghum genotypes were evaluated for resistance to sorghum head bug at Sotuba (Mali) and Kamboinse (Burkina Faso). Genotypes CSM 388, IS 14332, Malisor 84-7, Sakoika. S 29 and Kamboinse local were resistant to head bugs. both under natural and headcage screening. Head bug resistant genotypes had a lower percentage of head bug damaged grain. The food quality of head bug damaged grain was very poor and unacceptable. Cultivar non-preference was identified as a component of resistance to head bugs. and CSM 388 was nonpreferred compared to E 35-1. Panicle compactness was positively associated with head bug numbers and grain damage. However, genotypes with loose panicles were also susceptible to bugs. Long glumes ({\ensuremath{>}}5 mm), days to glume opening ({\ensuremath{>}}20 days after anthesis), {\ensuremath{>}}50\% covering of the grain by the glumes, and grain hardness contribute towards resistance to Eurystylus immaculatus. This information will be useful for developing a programme to breed for resistance to this insect in West Africa.}
}