1. Observations on laboratory rearing of grain aphids (Homoptera: Aphididae);Belvett;Can. J. Zool.,1965
2. Biology of laboratory-reared corn leaf aphids, Rhopalosiphum maidis;Branson;Ann. ent. Soc. Am.,1967
3. Biological studies of three species of Aphididae;Davis;Tech. Ser. Bur. Ent. U. S.,1909
4. El-Saadany , G. B. 1969 Further ecological and biological studies on certain corn pests Ph. D. Thesis Univ. Ain-Shams, Egypt
5. Physiological action of some extrinsic factors in Rhopalosiphum maidis Fitch;Hafez;Zool. Jb. Abt. allg. Zool. Physiol.,1971