Chhillar, B. SSingh, Darshan2018-10-092018-10-091983http://krishikosh.egranth.ac.in/handle/1/5810075460EnglishScreening of Promising Strains of Barley (Hordeum Vulgare L) Against Corn Leaf Aphid, Rhopalosiphum Maidis (Fitch) And its Chemical ControlThesis